Cleaning the VvB Prius 30 fan

Prius ZVW30 battery died? Reasons:

While the car is in Yapii I will throw a couple of pages to the question: “Why do 30-series trucks have dead batteries” Of course, the style of my story is far from the technical language. If there’s anything anyone wants to know about physics and chemistry, just ask.So There’s an opinion in some circles that the battery on 20’s is much more reliable than on 30’s. That’s bullshit! We’re talking about contract batteries. Let’s go from simple to complex, in the first place: Japanese are not fools and they well do not make the battery of the third generation worse than the predecessor.Second: The battery from NHW20 Prius year say 2008, elementary by the age of already passed service can not be more vigorous battery 2012.And now why the battery dies on thirtysomethings: the first reason it is essentially the main one is overheating. At high temperatures, metal hydride cells dry out and degrade, lose capacity, etc.д. Overheating will equally kill the battery in a 20 or a 30 Prius.

The cause of overheating : The cooling of the battery is not done properly. There is a fan on the 30 Prius battery that rotates at 4 speeds, thus cooling the battery. On the 20, it’s under the trim on the inside of the right rear fender. Cold air for cooling comes from the cabin through the shaft, which is located on the right side of the rear passenger seat. As a rule, there is very thin foam rubber, which plays a role of filter. But very often it’s not there for some unexplained reason. In its absence in the shaft of the fan with the wind in the back flies hair of favorite pets, hair of killed non-pets from coats and collars, and all other imaginable and inconceivable garbage from the open windows. And in fact we can observe such a picture.

Well, somewhere there’s more of it, somewhere there’s less of it. On the whole this is the first reason of the battery dropping out. Note for those, who are planning to move to LEXUS RX450H later on, it is almost impossible to finish off a battery in these beauties. But many people buy mats in their cars with high sides, and these LYOHAH ventilation shafts in the quantity of 3 pieces are located in the legs of the rear row of seats. And very often it happens that carpets cover these very shafts. Be careful, otherwise there is a high risk to get stuck with 80K of repairs

We’ve sorted out overheating due to the cooling fan, so let’s move on.

An experienced master using a scanner can tell you with great accuracy in what state your combustion engine is, by the fuel correction and mixture indices. The mixture, as we know, is air-fuel. So let’s look at it, starting with air. Here is the fundamental difference between Prius 20 and Prius 30 which affects battery life. This is the EGR Exhaust Gas Recirculation system, designed for reduction of emissions of nitrogen oxides. How it works is better to ask GOOGL, that’s not what we mean On 20-series it is absent, and on 30-series spoils the life of users. In a nutshell, the hybrid is designed so that it tends to give 100% of its efficiency to the wheels. These 100% efficiency derived from the combined operation of gasoline and electric motors (I wrote so that it would be understandable to ordinary citizens, who do not live on topical forums). So with decrease of internal combustion engine by 15-20% (because of what we shall further analyze), the car needs to go back to its indicator of 100% and the petrol engine fails to compensate the electric motor, turning to the battery more often. And this more often discharge, more often charge, more often and more heat, and heat as we found out is not GOOD. Now let’s look at what causes the gasoline engine to fail us.

Candles! When the plugs do not work properly or do not work at all, the engine is bad. Everybody knows that.

The EGR cooler is the first thing that meets the exhaust from the muffler on its way to the intake manifold. (it’s quite clogged)

The EGR valve itself, which, when opened, lets the cooled exhaust gases into the pipe that connects the intake manifold to the valve.

The actual EGR line (connecting tube) I mentioned above:

The inlet manifold is the next one to take the hit.

This is what concerns the EGR system, but it also, in a separate context, does not particularly slow down the engine. Let’s move on to the next part, which is responsible for the mixture in the intake system.

Throttle. It’s similar here, I’m talking about the 20 and 30 Prius. Because of a design feature, a puddle of oil collects in the intake manifold right under the throttle. Some more, some less, but it’s there. As an experiment you can pour motor oil into a glass jar and after a couple of days run your finger over the inside wall of the jar and find that it’s greasy oily. It’s a film of what’s called vapors of esters and other products in the oil. So being in the intake right under the throttle, and even in a heated state the whole throttle and together with it the air flow meter, the so-called MAF sensor is in this film. This greasy film is really good for dust and gradually accumulates on the throttle and the sensor. This is what it looks like on the throttle of a Prius 30

And, of course, what the window looks like after it’s been cleaned

In general, throttle is clogged, MAF is lying, mixture is lean, engine is bad It doesn’t breathe! Well, the air is taken care of, let’s move on to the fuel:

Injectors, whatever you like. Injectors should work with pressure of 3.2 atm. they should be atomizing the fuel, not pouring. We won’t talk about fuel pump and filter today.к. that’s a separate fault. So, thanks to our Russian shitty fuel the injectors become like this.

But in any case they should pour according to the manual and all the same. We shall achieve the result by method of double back washing, and in especially heavy cases. ultrasonic cleaning. Those that can’t be saved, change them for new ones.

These are probably the most basic things you should, should, should pay attention to in order to prolong the life of your hybrid’s VBB. Now put together all that I wrote above about gasoline engine and imagine how much less efficient it works relative to its laid-down parameters. Roughly speaking, all these shortcomings poor Prius, tries to compensate for the electric motor, constantly loading the battery. In the case of Far East lowe, namely in Vladivostok, a pleasant sea breeze significantly affects the copper plates that connect the battery cells, of which there are 28 pieces. Those plates are unfortunate to oxidize, which causes the resistance on the battery to grow and it just doesn’t take the current as it should, which isn’t good for its life either.

I will finish here for now, a little later I will add photos and post the cleaning procedure.

Toyota Prius 30. Why inverters burn

No sooner had summer arrived in the Urals, as our hybrid service mass brought 30 Prius for repair. Why? After all, it should be even more reliable than the 20 Prius!

But in fact, during the first two weeks of the heat wave that hit the Urals, the 30 Prius led the way in the number of malfunctions!

air conditioning failure and inverter malfunction./span

In fact, the reason of failure of these, seemingly irrelevant systems lies on the surface Let’s look at it with the example of 30th model Prius we brought from Tyumen today.

So, what do we have?? Owner Alexander summarizes the cause of the breakdown: Driving through town, not touching anyone, rejoicing at the warm, sunny day. Suddenly the car stopped. On the monitor it says: “check hybrid system”. All the “tambourine-playing” in the form of kicking the wheels, wiping the windshield and resetting the negative terminal had no effect.

That’s how the car and its owner ended up with us. The diagnostic results are not good for the inverter owner: the power module in the inverter is broken. But if you just replace the inverter with a working one, in 99% of cases, if the cause of inverter failure is unknown, the new inverter will meet the same fate.Therefore our first and main task is to find the MAIN Causes of the inverter malfunction.

First of all we check the winding of the generator motors for breakdown (using megohmmeter to check the resistance of the winding to the common ground). The test results show that there is nothing wrong with the windings. Let’s move on to the next, most frequent reason of inverters failure. What do you think it could be?? Right ! Hybrid cooling system failure. The first thing to do is to remove and check the pump of the hybrid system. There is nothing wrong with it: it pumps good, winding resistance is normal. The next component of the cooling system is the radiator. It is quite difficult to get to it: it is necessary to remove the front bumper, the system of active cruise control (on models with this system). Remove the top plate of the TV.

We see the radiator of hybrid system, which is located on the radiator of air conditioner. From the outside, contamination of the radiator seems not critical at all:

But let’s split the radiators of the AC and the internal combustion engine and look between them:

Here it is already clear that a radiator of hybrid system cannot work properly, as there is a dense veil of dirt on a radiator of internal combustion engine which does not let air to pass between cells and cool coolant (antifreeze). The owner said also that he noticed that the air conditioner started working much worse comparing to the last year. It was not so fast to create life-giving coolness in the cabin. Let’s look even deeper between the radiators:

As we see, all honeycomb opposite a radiator of a conditioner is clogged with mud, and at the bottom there is the mummified body of some bird That is the reason of failure of the second system of 30 Priuses in hot weather. of the climate control system!

We clean radiators (all three), install a new inverter and the car comes to life. Only now the owner can be sure that the new inverter will serve faithfully for many years!

“Are the inverters now installed in Priuses different from earlier versions, are they more protected from combustion or not?”

There are a lot of questions like this (on the markings and differences of the inverters on the 30 Prius) coming in. So now I will try to classify them a little bit: 1. The very first inverter, which was installed on all Prius 30th body for all markets (Japan, Europe, America) was G92AO-47030. It was produced (installed) on cars from April 2009 to July 2011. 2. Since August 2011 the inverter G92AO-47031 was available for all markets. Its major difference from the previous inverter was in substitution of some components with components of another manufacturer (as Toyota explained). Didn’t add any reliability to it. And was produced on DO December 2011, t.е. For only 5 months. 3. It was replaced in December 2011 with the G92AO-47040. The attachment of the power module in it was changed on the same element base. But it is not cooled any better and they burn too “through the blue flame”. The Japanese have already understood it in three months (in March 2012). 4. Then they went the other way and changed the manufacturer of the inverter. It was contracted by another company and marked G9200-49025. Inverters have been produced with this marking since March 2012. These inverters are still used in cars made for Japan and America. 5. But for Europe, in January 2014 they started to make inverters G9200-49065. They also began to be supplied as spare parts to Japan and America. This inverter has changed the color coding of some of the wires and has improved the moisture shield. But again, this did not add much to the reliability: they have always been out of order, and they still are out of order. 6. The most recent inverter modification I know up to date. This is G9200-49075. This version of the inverter is factory-installed on all Priuses made for Europe since April 2014. As for their reliability, I can say only one thing: we do not have such used cars in Russia so far, as these machines are not yet passable, but I know one case of such an inverter breakdown in a dealer car sold in Russia in November 2014. So the problem with the reliability of 30 inverters has not been solved to this day.

Well and finally a piece of advice: don’t bring your iron horses to such condition when you “find yourself” on not at all cheap replacement of the inverter. In fact it is much easier and cheaper to make prevention of this illness. to clean radiators and check all cooling system before hot summer season!

Instructions for disabling the anti-skid system on the Toyota Prius 30

Electronic anti-skid system allows improving acceleration dynamics and reducing fuel consumption. But when driving on snow or mud, the electronic assistant worsens the passability and does not allow you to quickly get out to the area with hard ground.

As it is possible to switch off the anti-boost brake on Prius 30 only by sequence of actions, so you should do the procedure before driving on a road with unstable or slippery surface.

cleaning, prius

My Prius

On the gasoline engine, everything is the same as in all cars. the pump is mechanically driven.

On the hybrid drive, there are a few things to look out for.

The Prius has two cooling systems. one, like on regular cars, has a combustion engine/heater/radiator circuit. A second system cools the hybrid part of the Prius, namely the powertrain with electric motors and the inverter. The inverter is the silver box next to the gasoline engine that catches your eye when you open the hood. The fluid in the hybrid circuit is circulated by an additional electric pump, which is located behind the left front headlight. Two cooling circuits operate autonomously and have their own volume of coolant and, accordingly, two expansion tanks with liquid level control.

What a Prius owner should be concerned about when checking the cooling system?

  • Coolant availability (check through the clear walls of the expansion tanks against the lower/upper level marks)
  • Circulation of fluid in the hybrid circuit
  • Checking the freezing point of the coolant

Why I do Accent exactly on a hybrid circuit? The matter is that the interruption of circulation in the hybrid circuit (pump stopping, loop clogging) leads to overheating of the inverter with the consequent failure of the. The inverter, let me remind you, converts the direct current from the traction battery into alternating current, to feed the alternating current to the traction electric motor. If in winter without fluid circulation Prius can feel rather well, at the onset of summer heat sink is extremely necessary. As experience shows, the electric pump of hybrid unit cooling turned out to be a weak spot in Prius’s cooling system. In the experience of owners, the end of it came after 90-100 thousand miles (individually, each differently of course, but the trend is outlined) If we consider that Toyota said the warranty on the hybrid part in 160 thousand. If a hair dryer doesn’t turn on, the first logical step is to check whether the outlet is plugged in. This is how the Service Campaign to replace this unit came about. Read more about my Toyota Service Campaign pump replacement here.

The fluid filled at the factory is called Super Long Life Coolant (SLLC) and has the original pink color. Do not mix up the color of original antifreeze with the red LLC antifreeze and do not mix them. The point is that the original antifreeze is designed for long-term use. the first replacement is scheduled for 160,000 km, followed by 80,000 km and differs additives from the usual red antifreeze.

If you refill the red LLC, then only to drive to the service and do a complete replacement, that is, short-term use is allowed, but no more.

Capacity of the cooling circuits of the gasoline engine:

2.7L Hybrid cooling system

If the car is equipped with a thermos. 2 more liters are added

The second point. diagnosed visually, when you turn on the hybrid should be circulation in the expansion tank of the hybrid cooling system. If you can’t believe your eyes. You can put your hand behind the left headlamp and touch the cooling pump on the hoses will vibrate and you can hear the hum.

The third point is to check the freezing point. I measured it at the service. I have a freezing point in the circuit of the gasoline engine.24, in the hybrid circuit.30.

It just so happened that it took me a long time to find SLLC fluid in a shallow container to bring the freezing point to our operating conditions. As it turned out later, this fluid is only sold in 20 liter cans. While looking for fluid for refill, as mileage allows not to make a complete replacement, came a frost. At first I panicked, it’s not like antifreeze is designed for these conditions. I was calmed down by a Prius owner I know, who hasn’t bothered with this topic for 5 years, he said he hasn’t changed the coolant since Japan and everything is OK. Of course this is not normal operation of the car and to repeat my experience is completely unnecessary. But I think everyone is wondering what happens when beyond. But in fact nothing terrible happened. In the hybrid circuit, even in freezing temperatures.42 degree antifreeze was in the liquid phase, but denser than usual state (remember, the instrument showed critical.30)

But the problems with the second circuit began when the frost reached.30. In the expansion tank and in the radiator the antifreeze was in the liquid phase, but thickened without the formation of ice crystals. Circulation in the cabin heater began only after a long warming up of the engine (15-20 minutes). So in simple terms, the heater was “seizing up”. The engine was not overheated, there was always circulation through the main radiator. In the morning I always have time to spare. I turn on the hybrid and go home to warm up (for ideological reasons I do not have auto-start in the area of protection). I came. it is warm in the cabin.

Then spring came, and the coolant problem was relegated to a distant. It’s the end of summer, the unresolved issue of raising the frost point is coming up.

But I already found a service that sells SLLC concentrate for 310p per liter on tap. So, it’s not so bad anymore.

This entry was posted in 10.08.2011 at 15:46 and is filed under Operation and repair. You can read Комментарии и мнения владельцев via RSS feed. You can leave a comment, or send a trackback from your site.

We have 38 Комментарии и мнения владельцев on this entry Cooling system. Toyota Prius Hibrid Coolant

Why don’t you give your opinion! Let us know what you think.

Afternoon! Clue me in as to where the confidence in the irreplaceability of the coolant in the inverter is emphasized from?

And what do you think, is it worthwhile to include a Boch pump in the cooling system of the inverter? It is commutatorless read almost eternal.


Oleg 46 Khabarovsk Reply:November 13, 2012 at 22:17

In series with the original?

[Reply] a5f732a5#p212559

Here the man writes that the dealer as if supports me.

But of course this is applicable to normal cooling system. But with the inverter you have put me in a difficulty. Already afraid to drive, every time I open the hood it circulates?


admin Reply:November 14, 2012 at 22:11

Hello, Oleg. I did not understand the question. If you want to put an extra Bosch pump, it’s unnecessary. If you put the pump Bosch instead of regular, it is quite feasible in practice. If the standard pump fails and the inverter overheats, the load on the electric motor is reduced, as well as a warning triangle is displayed. Only with long term operation with the pump not working in hot weather, it is possible to overheat the inverter.


Thanks. I did an experiment the day before yesterday. I mixed 50/50 drained SLLC inverter fluid with AGAz65, boiled that mixture on the stove, put it out on the balcony.

After 2 days the mixture of suspensions and flakes did not give a clear homogeneous, the color of overripe lemon. I can not find SLLC concentrate filler in Khabarovsk. It seems that the poured AGA 65 circulates worse may as long as pour the old one?


admin Reply:November 15, 2012 at 21:37

SLLC on draft sold at Toyota Center for 480r per liter


would like to know if SLLC on tap in Komsomolsk-on-Amur?


admin Reply:Jan 8, 2014 at 19:29

I can not tell you, I am not in your city.



please tell me where in Khabarovsk can change the antifreeze in the inverter cooling circuit and what antifreeze other than the original? There is no original antifreeze in Komsomolsk and no service that would do the job.


admin Reply:May 8, 2014 at 22:46

You can change it at Toyota Center or AutoCity, in other places you have to ask.


Can the inverter cooling pump from a prius 30 be put on a prius 20


admin Reply:June 28, 2014 at 12:33

Catalog numbers are different, so only with a conversion.


Afternoon! Can you tell me if it’s worth changing coolant if car just came from Japan, mileage is Our winters in Krasnoyarsk are just like you described, it can be up to.40 is coming in. I would like to get some advice, is it worth replacing factory antifreeze with the same but new one, or to live with it quietly further or buy concentrate and make more concentrated antifreeze to increase its freezing point.


admin Reply:Oct 25, 2014 at 15:36

Afternoon! If the mileage is real, the benchmark here is the freeze point. Check the antifreeze to minus 40. Then you can refill the original and bring the concentration to an acceptable level.


A little off topic question, but very interesting If there is no tag in the car, how can you leave the car warm? Leaving the key fob in the ignition and close the doors with the key? Or is there another way?


admin Reply:December 12, 2014 at 22:42

Leaving the key in the key fob and close the doors mechanically. Or put auto start with immobilizer override.


My check light came on today. Cold to 30 degrees for a week. Here I am sitting on the net looking for information. Mileage 150 OOO 200 9 year japanese 20 body. Could the check light be because of the pump? Thanks


admin Reply:December 18, 2014 at 23:28

Check antifreeze freezing point and circulation of antifreeze in the hybrid circuit.


What to do, it’s winter there is no inventory circulation no errors are lit.


admin Reply:Jan 12, 2015 at 22:51

See if the inverter cooling pump is working


Can you please tell me the 10 prius has blue fluid in the convector what can i do and can i mix it


admin Reply:February 26, 2015 at 0:38

Apparently filled with Tosol. I wouldn’t mix it up.


In a 10 Prius under the driver’s seat found the unit navitsionnoy system.Question-disconnect (the system will not hurt the flow) or as advised car was in a cab abroad and it is easier for me to flash it (10000rubl) and drive around with a navigator, what is realistic to do.thanks in advance.п.с.the unit has a floppy disk drive.


admin Reply:March 11, 2015 at 22:59

Unfortunately I can’t tell you, haven’t had any experience with the 10 body


On the magnetor the batorea is charged and on the dashboard the turtle is on. Turned it off and on again no turtle. What is that supposed to mean?


admin Reply:March 27, 2015 at 23:24

There are no turtles on the 20 body, no clue


I put 175 in the front and 195 in the back, t.к. Rear to risk. Will it affect the computer? Thanks in advance for the advice.


admin Reply:April 11, 2015 at 23:05

I can assume that there will be a problem with the difference in the radius of the front and rear wheels, and this will affect the ABS system and VSC. The car will think the front wheels are spinning faster than the rear wheels.


ROA37 error what is the error? I’m looking for a Toyota Prius body 20


A month ago my 20k blew the inventory cooling pump as there was no way to buy a new one and it was a 500km drive home. I had to take a chance. It turns out that in fact there is nothing wrong with driving without cooling the hybrid unit (by the way it was over 30) The maximum that can happen is that the computer will shut down the car if the inventory is too hot. You need to stand for about 15-20 minutes and then start the Prius and drive on to the next stop. And if you have cold water at hand (in my case it was a river running along the road) Then you can pour water on the inventory, thus it will cool down faster and you can drive a longer distance to the next engine shutdown.So there is no need to be afraid of overheating and breakdown of electrical installations. The computer simply will not let it overheat, tested on my own skin. I’m not saying driving without a pump is good, but it’s a lot cheaper than a tow truck. On the road, my car shut down ten times, but I still made it to Dam. On arrival I bought a new pump, changed it, then went for a computer diagnostic where no problems with the inventory or anything else was found.


Prius owners aren’t all such illiterate cattlemen, thank goodness.


When I turn on the a/c after 10 minutes on the 20 body it comes out waxing. triangle sign. That’s what happened when the inverter overheated last year. But now everything seems to be fine, fluid is bubbling, radiators flushed all. Except the bottom of the front radiator is barely warm. I’m guessing the system is airing. And one more thing: I add antifreeze to the top of the tank of the inverter, press the tube and the extra antifreeze flows out under the car from some unknown place. This is how it should be?


admin Reply:November 1, 2016 at 22:54

To pump the system with the inverter you need to bleed the air through the valve hex on the spigot near the top rail of the radiator mount.


Afternoon. Bought a prius 30 today. Can you please tell me the coolant is poured red, when you turn on the power the inventory coolant does not boil, looked in a 20 prius it boils. Question should the coolant be boiling, according to the previous owner he changed the native one to a new calculated one.40


Hello!Do you know if you have experienced this problem, I have a Prius 10, today I started the car and wanted to go, but it is still not moving, neither forward nor backward, then it jerked a bit and went, on the way home twice stalled and did not want to go uphill, you give her gas, and she drops speed.Triangle icon with exclamation mark is lit up.


Hello, can you please tell me on a 2015 Prius alfa on the injector is there a bleeder valve? I found it on the 20 prius and I can not find it on the alpha, I was just cleaning the throttle when I took it off the hoses disconnected. Put everything back in place the choke will not choke, after cleaning drove the throttle trained it seems to have no problems. Write if it is not difficult to have no problems.

2010-2015 Toyota Prius HV Battery Fan Cleaning/ Приус 30 чистка вентилятора ввб


Notes from an experienced PRIUS driver :: 1. Myths

Hello, everyone. There is a lot of talk lately about hybrids, expensive gasoline, ways to save money, but there is a lot of truth among all this. It is no secret that people here love to talk about something, and almost comes to a fight. But unfortunately, there is little truth in all this, because a lot of theorists and analysts divorced.

I am an experienced Prius user, have owned them for more than a year, I currently own 2 Priuses: 20 series and 30 series. I will try to do a series of articles on Toyota Prius hybrid cars.

The battery does not last long, it must be replaced.

Toyota uses Nickel-Metal Hydride batteries, because they. resistant to frost, their operating range.60.55;. are cheap to produce;. have practically no memory effect.

In addition, the battery pack consists of smaller units, those in turn, of cells, actually finger batteries.

The entire unit is controlled by a controller that uses the capacity of the batteries in the range from 40 to 80%, which allows many times longer battery life. Separation into blocks and cells allows in case of loss of capacity to “pump” the dead batteries (this procedure is familiar to those who have the so-called “smart chargers”, which in a special mode charge to restore the acb) as well as disable damaged cells (similar to the HDD, when dead sectors are disabled without significant loss in the total volume). Toyota used to give an 8 year warranty, now 10 years. It should be understood that when using the battery in such a sparing mode it will not be able to fail immediately, and only after a long period of time (10-15 years) will lose its efficiency, which in the worst case will affect the consumption, and at best will not be noticeable at all.

In practice we have: a powerful battery, which consists of a huge number of small cells, a smart controller that monitors the state of the battery and uses it sparingly, the car, which went for more than 10 years (Prius 20 series produced since 2003) and no problems with batteries.

I think a lot of people have heard of someone out there in a Prius having a battery failure, but this is more applicable to the 10 and 11 series Priuses that were mass produced from 1997 to 2002, they had a different type of battery(dry batteries) and now, after 16 years some of them need partial or complete replacement of the battery.

Of course, you can forcibly turn on the mode “EV”, which will use only the electric motor, but you must understand that the Prius drives on gasoline. It is a gasoline car, and its electrical component is designed to improve the efficiency of the system as a whole. And the higher the efficiency, the more power at lower fuel consumption. And, whatever they say about diesels, but the efficiency of the Prius no one has yet reached. Prius battery is used as a small storage facility for energy, some of which escapes during braking in a regular car, but here is stored, the other part of this energy comes when the engine is idling (eg for heating), another part comes from driving on the run. The stored energy is used when it reaches speed.

Goes, doesn’t go. It’s pretty subjective. Any Subaru owner will tell you the answer to this question :).

Prius drivers often like to brag about how fast and good the Prius is, everywhere you look there is a comparison of the 20 Prius with the Toyota Mark 2(which has 2 or even 2.2 liters under the hood) and where Prius makes it as standing. That, of course, is all wrong. You have to compare it with classmates and with modern cars.

As for the Prius’s classmates, I can definitely say that when accelerating from a standstill, it is more dynamic than its 1.8. 2.0-liter atmospheric classmates will, however, when compared to modern cars like Solaris or RIO, which has a 4-speed automatic, 1.6 engine and 122 hp, the Prius only pulls out at the start, if you start the race at 40mph the 20 has no chance of pulling out sharply.

Bottom line, for a 20 Prius has a sharp start, smooth speed gain at the level of a 1.8L atmospheric.

The situation has improved in the 30. The acceleration to a hundred is a little bit less.3 (although according to some reports. 9.8) the 30 vs. 10.6 in a 20.). The POWER mode was introduced, which changes the settings of the hybrid system so that it greatly improves gas pedal response, improves driving performance to the detriment of consumption. It is no problem to overtake more powerful 144hp Civic on automatic, solaris and RIO smoke nervously, Skoda 1,8TSI loses only the first 30-70 meters on start, goes on the leader, but it is understandable, Skoda has 152hp against Prius 130hp.

The Prius‘s quick start is due to the electric traction motor, which Toyota claims is capable of 478Nm of torque at speeds of up to 22 km/h.

Hybrids are dangerous to use because of the high voltage. (taken from the surfclub)

Engineers who designed hybrid cars in the first place thought about safety.

The main possible sources of danger:

Battery The battery itself is sealed with a metal shroud and consists of kit cells. Maintenance free under normal operating conditions. The electrolyte leaks are protected. Contacts are reliably hidden and covered. When the machine is turned off, the battery contactors disconnect it from the rest of the machine’s circuit. Temperatures, currents, etc, are controlled by a separate computer.

Wiring High voltage cables run to engine compartment underneath floor. The cables are carefully shielded and marked orange. In normal life, they are difficult to reach, both from the outside and the inside.

Hybrid/inverter system The inverter is in the engine compartment. Enclosed by a heavy-duty metal jacket. Cooled by a separate cooling system. Power cables coming in and going out are also shielded and tucked away to keep out of harm’s way.

All power components are monitored electronically at all times. In the event of an accident, the automation cuts off all loads and de-energizes all power sources.

And, as far as we know, no cases of electrocution have been reported. (no handyman with bad hands reported either)

Hybrids are uncomfortable in the cabin, little space in the trunk because of the battery

There is a lot of space in the cabin, in this indicator Prius is almost equal to Camry, /- a couple of centimeters. This is due to the fact that the total length is 4370, with the power hybrid takes up quite little space under the hood. As for the trunk, it is very large, and the battery takes up very little space and is located almost under the back seat.

As I wrote above, the battery at.60 works great. In addition, most prius are equipped with electric heaters for faster warm-up. And in the 30th Prius they added the option of quick engine heating from the resonator.

In addition, it should be understood that the Prius does not have all the usual starter, which in the cold barely cranks your average car, here is a powerful motor, which for half a second unwinds the engine to 1000 rpm. In this case, for ordinary motorists is always a question of warming up or not warming, here everything is easier, since at low speeds most of the load falls on the electric motor, which certainly does not need to warm up.

Just this morning it was.17, full heating of the car was exactly 5 minutes. By warming up completely we mean: all windows are warmed up, the temperature in the cabin is 20.

I have already written about the battery, it does not need maintenance, and as for the electric motor and inverter, the same situation with them. they are not serviceable. Well, there are no complex mechanical parts, as, for example, in any automatic transmission, which in turn in ordinary cars for a long time (80-100 thousand and more), and here in general there is no such a complicated mechanics, it means a lifetime of an order of magnitude more.

It is necessary to understand that Prius drives like usual cars with automatic transmission, but the incredible smoothness of running, acceleration, absence of jerks while gear shifting will definitely please you :).

Why Prius starts better in a cold weather than a car with internal combustion engine

The hybrid power unit does not use a starter compared to a standard internal combustion engine. To start the internal combustion engine uses an electric motor with a capacity of 18 kW, while the starter capacity of cars with internal combustion engine is only one kilowatt. Under optimum conditions, the hybrid can be started immediately. But at the same time there is a specialized start system in a sparing mode at low ambient temperature. It consists of pre-revving the internal combustion engine at 1000 rpm with the help of an electric motor. Then the petrol engine is started. Only two cylinders are actuated in the starting process. The system takes no more than forty seconds to start the engine. During the engine start-up the READY light will blink, and after the engine has started, the light will be on continuously.

The Prius may not be able to start in freezing temperatures, but it still looks like it’s running. This is due to the operation of the driving electric motor.

Recommendations for winter operation

To ensure a stable start of the Toyota Prius in winter time, the following recommendations should be observed:

Before parking the vehicle overnight, fully charge the main battery. To do this, turn on the climate control to the maximum heat output. This will ensure the transition of the hybrid unit to operate from the gasoline power unit. The power distribution process is monitored with the help of the information monitor. To switch off the engine, it is necessary to finish taking in charge the BVB;

Do not operate the Prius until the internal combustion engine has warmed up. Since there is no indication of low coolant temperature, the following method can be used to control the internal combustion engine warm-up. The climate control is switched into automatic mode. According to the fact that the warm air is released into the cabin, you can conclude that the internal combustion engine is sufficiently heated;

Do not use the electric drive in high-duty mode without first warming up the VVB. To achieve the required traction battery temperature, you should warm up the interior space of the Prius well, since the battery is mounted behind the rear passenger’s seat.

In ambient temperatures below minus 35 degrees, do not use heavy acceleration and force a switch to electric power immediately after starting a hybrid unit.

Hybrid car repair and maintenance. Repairing a 30-body Prius

Today we have a guest of our forum member Yuri from Surgut with his beautiful Prius 30.

The distance between Hybrid-service and Surgut was more than 1100 km. And that’s the distance Yuri drove his car on a hard hitch! As you have already understood. his car is defective. And it had been malfunctioning since August 2018. According to Yuri, in the summer of 2018 with the car began to have trouble. it began to increase the engine speed on its own. After the engine was forcibly shut off and started again. it behaved normally for a while.

But one August morning the Prius flatly refused to start. When trying to start the engine, it started making terrible metallic knocks. The diagnostics by the local mechanic revealed the errors Р3190 and Р3191. The diagnosis was different at any one service: one of them considered that the engine was dead, the other one said that the transmission had splitted.

Yuri bought himself another car in the past year, and Prius was waiting for its repair. The call from Yuri to “Hybrid-service” sounded something like this:

After such a question the inspector was a bit lost for an answer, and it was understandable. Why?

Yuri was coming to us with his box that he already bought for replacement in case the box was out of order. And was ready to buy a contract engine assembly in case of motor failure.

That is the prehistory of appearance of the Surgut Prius in our town. We start, as always, with a full diagnostic of the car. The scanner really only gives out two errors: P3190 and P3191. They indicate that the ICE has low power, and that the motor won’t start. Certainly, it is not the reason for replacement of an internal combustion engine or a gearbox!

We start to look at the current ICE parameters. It is immediately evident that the fuel correction is high up, and this means that the fuel-air mix is very poor. In most cases the culprit is a fuel pump that has gone out of order or a tightly clogged fine fuel filter.

Measuring the fuel pressure, it’s perfect. So we have to deal with the “air”. On the air, usually the main cause is a faulty mass air flow sensor, or dirt getting into it. But readings of the DMRE do not cause any suspicions.

The next mechanism that affects the intake of air into the engine is the throttle valve. On Toyota hybrids, it’s pretty reliable. At the same time, the manufacturer has provided a whole bunch of different error codes for the flap failure to control it. Here they are: P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2102, P2103, P2109, P2111, P2112, P2118, P2135. With such serious control of the throttle valve operation, there shouldn’t be any malfunctions that the electronic control unit wouldn’t notice.

Nevertheless, we carry out the necessary active tests and see that the throttle does not respond. And when I tried to open it manually, it creaked and clicked That’s the reason for all of Yuri’s troubles!

In the ’30 Prius, the throttle body is indestructible. The body is riveted together with six rivets.

But we need to determine the cause. why the throttle refuses to work? Drill out the rivets and remove the cover. No sign of water inside. Lubricant is plentiful. Cover and seals are intact. Contacts in the cover are in good condition.

Examining the gears. They’re made of plastic. There is no visible damage on the exterior of the car.

We remove the parasite gear, and everything becomes clear at once. Two teeth are missing in the pinion of the choke actuator.

And the teeth of the parasitic pinion have been worn down to twice their nominal size.

There’s no point in repairing those gears. In the near future, it may be possible to quickly print such gears on a 3D printer, but we, unfortunately, do not yet have such a machine. But we have a huge warehouse of inexpensive contract parts for all hybrid cars! We install a contract throttle and try to start.

And the Prius comes to life! The engine works fine and smooth! That is how for 1.5 hours of work we got another satisfied client, who unexpectedly saved a lot of money! After all, he was ready to buy a complete contract engine or change the transmission!

It is necessary to note that this malfunction is not typical for “Prius” body 30. In all the time we have been repairing Priuses, this is only the second car with this malfunction.

Conclusion: when repairing and diagnosing, do not stupidly trust the errors that are produced by electronic control units. Even the control units of Toyota may not give out the “necessary” error. The diagnostician must also have a head. to analyze current parameters, on the basis of which the cause of malfunction can be precisely determined.

And we wish Yury a good trip to Surgut: “No nail and no tinker”!”.

Weaknesses and disadvantages of the Toyota Prius 30 used

One of the most interesting decisions in the automobile industry is the emergence of hybrid engines. Cars of this kind are designed to minimize fuel consumption and serve faithfully to their owners. Among the most popular cars with hybrid engine is Toyota Prius ZVW30. Today it is considered one of the best in its class. But there is also an opinion that the third generation Prius is a rather mediocre machine with a lot of problems. Therefore, in order not to voice specific information, it is worth finding out: what disadvantages are in Prius, and is it worth buying it.

Technical Specifications:

  • Modification (engine): 1.8 CVT (100 kW (134) l.с./5200 rpm.), Multi-point injection, hybrid gasoline;
  • Transmission: ECVT (variator)
  • Top speed: 180 km/h;
  • Type of suspension:
  • Front suspension Independent. McPherson;
  • Rear suspension. Semi-independent
  • Clearance: 140 mm
  • Tire Size and Disk: P195/65 R15
  • Body type: Hatchback
  • Average fuel consumption: 1.8 CVT 3.9L./100 km.
  • Payload: 435 kg.

The Toyota Prius has easily taken the lead among hybrid-drive cars. It was easy, since there is not much competition in this market segment. Only Honda was able to put a hybrid car with a sufficiently competitive modification on the market, but still Toyota beat it in all respects.

But if you take into account all the cars of a similar class, Toyota Prius will be about in the middle of the rating. Now sales of this car are stable, but they fall far short of the manufacturer’s plans. A number of flaws and outright weaknesses make drivers regret their choice.

Most interestingly, the first-generation Prius, which was first released back in 1997, has the least complaints. The second-generation Prius, bodied NHW20, and the third-generation Prius, bodied ZVW30, have already been developed on its basis.

The design and technical characteristics of the battery

Structurally, the battery of Toyota Prius is a block assembled from 28 cells with nickel-metal hydride batteries with voltage of 7.2 V and capacity of 6.5 Ah.

Thus, the complete unit (VBB) has a capacity of 1.3 kWh. The figure is striking, isn’t it?? The battery capacity of the Nissan Leaf electric car is 30 kWh, and the Tesla is even more. But we found out in the previous section that the electric motor in the Prius is not the main drive. It just helps the engine at the right moment, and the rest of the time it recharges. So this capacity will be more than enough.

In Toyota Prius NHW10 models, the cells are in the form of thin cylinders, which hybrid car owners have called bamboos.

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