2010-2015 Toyota Prius Inverter coolant drain and refill

[@climbing_for_dollars]

The Toyota dealerships charges $184 per coolant system and at least 2 hours wait time to do this for you... lol. They also will tell you how the price is justified because "its complicated since its a hybrid car and has 2 coolant systems." These videos are a huge money saver for people and you will be able to sleep at night since you know you aren't getting ripped off by the dealership.

[@yslee1401]

Yeah, i did the engine coolant change when i cleaned up the EGR pipe, intake manifold and throttle body. You can access the engine coolant drain after removing the airbox, so don't need to crawl under the car to remove the under body panels

[@mitchelltomky175]

@@yslee1401 how do you access it by removing the air box ?

[@yslee1401]

@@mitchelltomky175 yeah, after removing the air box, you just have to use your hand from the engine bay to access the drain plug, which can easily be turned anti-clockwise to bleed the coolant

[@simplyraw1369]

I'm a 56 yr old woman and I was able to follow this (hate mechanical work!) However, HATE the fee's dealers and professional mechanics charge even more! I thank you my friend!!

[@NutzAboutBolts]

Nice work!

[@76tigga]

your videos are so detailed and helpful. It's astounding the number "modes" the Prius has. I had no clue these modes existed until I watched your videos.

[@NutzAboutBolts]

Thank you! So far, the 2021 sienna hybrid maintenance is the same as the 2012 Prius. Toyota vehicles are pretty easy in terms of maintenance.

[@kevinbyrne7597]

Thanks for your Prius videos. I have saved a ton of $ from not paying dealers overinflated prices. Keep up the good work. My 2010 has 220,000 miles and still going strong!

[@MrShankwheat]

Have you had any problems with your 2010 burning oil?

[@Usernotknown21]

How many miles now? Any issues?

[@devoidbmx1]

@Carolee Overmann No one cares about your scam hacking software. You need to develop some morals. Didnt your parents teach you to be a good person? Do you really think you are going to have a better life by promoting scams in KZbin comments? Go make something of yourself.

[@ryanmccormick2150]

@Carolee Overmann I bet you get through a lot of rent boys 👦.

[@yslee1401]

There is a sticker on the inverter coolant reservoir stating that the coolant change interval is 150,000 miles. What i did on my CT200H (same engine as 3rd gen Prius) is to change the engine coolant at 80,000 miles and both inverter and engine coolant at 150,000 miles

[@JoseHernandez-vf6zx]

Thanks for your video tutorial! I just did some major maintenance on my vehicle and saved hundreds of dollars doing it myself by just watching your videos! I'm an IT guy so not really a mechanic but this was soo darn easy to do! Thanks again!

[@happylight7881]

This was the last done since the engine undercover removal is a pain in the butt, so I did trans fluid, two coolants all at 103K miles. It is wonderful to feel car's power to transmission being tightly coupled. Thank NutsAboutBolts for sharing.

[@almeshkatjandaweel104]

THANK YOU SO MUCH IM FROM JORDAN I WATCH YOUR VIDEO TEN TIMES... MY PRIUS NO 110K M...2014 WITH NO MAJOR ISSUES..... I ASKED ALOT OF WORKER HOW MUCH RADITOR AND INVERTER COOLANT CHANGE WILL COST...ITS AROUND 100 TO 120 JD ....TODAY I DECIDED TO DO IT MYSELF ...... IT TOOK ME TWO HOURS TO FINISH....I COULDNOT DO ANYTHING WITHOUT YOUR HELP BY THE SMALLER DETAILS .....I ALSO CHANGE ENGINE OIL 😉....THANK YOU AGAIN

[@vikassehdevs]

Hi There Did the inverter and engine coolant change as well as transmission fluid change on my 2012 Prius all by myself (first time ever) by watching your videos. Thanks a lot. And keep them coming. Vikas

[@NutzAboutBolts]

Nice work!

[@ploxplox1109]

@@NutzAboutBolts Hey what inverter coolant did you buy the link for the coolant in the description does not work ?? exact name or brand and does the coolant from the radiator and the inverter use the same coolant correct?

[@misaelflores3843]

Is not tank for transmition fluid?

[@tardeliesmagic]

@@NutzAboutBolts Could i use Prestone coolant instead of the Toyota coolant? Thanks

[@davidfalgout7304]

@@tardeliesmagic NO and HELL NO !!

[@joelmarcelo4694]

I believe this service costs $160 at the dealer, thank you so much, learned so much by your videos!!!

[@brandoncostner7437]

Do they do this at the dealer at a certain mileage? My prius has had every recommended service it's whole 176k life

[@vinie.-z.3565]

@@brandoncostner7437 at 150k they suggest to change the inverter coolant.

[@castironrichie1445]

290$ in NY -_-

[@v41ru55]

My dealership wanted to charge me $200+ to do the inverter coolant change at 106k. Not only am I relieved that it's not necessary till 120-150k, but watching this video I feel confident I can do this myself!! Thank you!!!

[@NutzAboutBolts]

Anyone can do this 👍🏼

[@alaind831]

do NOT wait for the published 150k long life. all the reviews I see say to to 5y/50k as collant get acidic and you are wearing your head gaster (much bigger problem) and inverter. Cost $30 worth of coolant and

[@haywardkong1213]

@@alaind831 Agreed... but you can also do test strips to see how the coolant is doing too.....

[@Nothing_That_Is_Everything]

Thank you very much, your videos of the Prius also work for the Toyota Camry hybrid (2012). I followed your procedure for the invertor and engine coolant on my Camry hybrid and it worked like a charm. Also the 10mm bolt was the same. This procedure will probably work about the same for all Toyota Synergy drive systems. Your video was a life saver because there aren't any videos out for the Camry hybrid.

[@nonenone4078]

How did you do yours I have 2007 Toyota camry hybrid and want to do this

[@o.g.j.t.5922]

Wow, I saved $150 today thanks to watching this video that explained the " do it yourself " process very clear, after watching the video 3 times it was a piece of cake😎

[@passangsherpa6831]

Yes I’m gonna do it myself what tool do I Jed for this and how much coolant do I need to put in Toyota 2015? Thank you

[@alaind831]

@@passangsherpa6831 5qt/1.3gal for engine, and 1.6quart for inverter. 2 gallon did both exactly on my 2014 prius.

[@siward44]

Thank you for the video. I just changed my 2012 Prius engine and inverter coolant today at 191708km. Instead of removing the whole engine cover, I simply removed the driver's side clips. Those darn clips took me over an hour to remove. I had a screw driver and a clip remover tool that looks like a pair of pliers. Unfortunately, I stripped one of the inner bolts due to rust. With the car jacked high enough, I was able to bend the undercover and reach for the inverter drain plug. The inverter plug was tight so, I had to use a short breaker bar (18"). I filled the inverter reservoir about 3mm above the fill line and asked a helper to add coolant as soon as he sees it drop. My helper did nothing and the first time it dropped to empty. I hope this didn't mess up anything? There should already be air after the inverter pump as the air came in from the plug when it was removed. Took it for a test drive and didn't see any codes.

[@alaind831]

| the first time it dropped to empty I too had this happen. I did the ready+stop 3-4 times like the video and it dropped a little, but then the engine decide to start and I killed it right away but the reservoir was empty. at the end I put in 1.6qt for the inverter (~5wt, or 1.3g for engine). drove and no issue.

[@brucecoorpender7931]

Thanks!

[@NutzAboutBolts]

No problem! Thank you for the tip 🙌🏽

[@MrShankwheat]

Really nice video. Thanks, Mr. Nutz. Two tips I discovered while doing this 1) a 10 mm hex socket for the drain plug is essential. Don't try this with a 3/8 or any other size or you'll strip it and you're SOL. 2) If you live in an area where salt is used on the roads, that drain plug gets rusty and a breaker is essential to loosen it.

[@aboonski]

Thanks for posting this very informative video. I have a 2010 Toyota Highlander Hybrid that needs this service plus the transmission fluid change as well. I am at the 70,000 mile mark right now. The local Toyota of Melbourne wants a small fortune to do these two tasks which I would do myself if not for vertigo. I crawl under a car and immediately get nauseated because of this issue. I have a local ASE certified mechanic in West Melbourne that i can take my vehicle to and have these maintenance items accomplished for much less that I was quoted at the Toyota dealership. People need to be very careful about being gouged when they bring their cars in for service at dealerships!

[@brucecoorpender7931]

Easy to follow instructions, saved a bunch of $$$$$. Thanks

[@NutzAboutBolts]

@@brucecoorpender7931 nice! Glad it was helpful!

[@kc0rock]

Very concise Video. Thank You. I assume this is the process I follow in the replacement of the inverter coolant pump.

[@furryp2402]

Thank you for making this video. My 2010 Prius has 100,000 miles and I think I'm about due for this change

[@NutzAboutBolts]

Mines 110k due, gonna do next oil change lol

[@alaind831]

I hear do it 50k/5y not the 150k they say on the bottle! old red coolant used to be 50k but the extend range they now quote are ridiculous. coolant gets acid and will eat your head gasket and inverter. so cheap and easy to change coolant.

[@0609householder]

Great video. I'm a mechanic and just needed a little refreshing on what do do. We don't see many of these where I am.

[@NYCMP1]

Hi there, This might be a dumb question but it looks like it in video but I was wondering if engine and inverter coolant are exactly the same. Love your work. Your the one to watch on KZbin when it come to this stuff. Simple, to the point, no BS.

Yes, they are the same fluid.

[@kc0rock]

Thank you for asking this important question!

[@AA-os1sg]

Thanks your video it helped alot! For info should it help anybody it is very similiar process for the LEXUS IS300H 2014-2020, the only difference is there is a white plastic drain valve for the Inverter & it is on a rubber hose.

[@NutzAboutBolts]

I feel these procedures will be the same throughout the hybrids for Toyota and Lexus.

[@bobbauvian7700]

I am looking for a video on replacing the hybrid water pump for it.

[@ti50pqsmoith34]

Thanks for making this video. Very detailed and informative. Can you make for for the inverter coolant pump replacement?

[@NutzAboutBolts]

currently our inverter still working... once its not, we'll sure to film it. sorry!

[@Zeko-v7l]

Dealership asked me to pay 500$ for these easy steps 😂😂😂 I will do it by myself thanks for your video

[@NutzAboutBolts]

😬

[@jasonaileo1605]

So why does the inverter housing down under the car where you drained the coolant, also have an obvious fill bolt? The fill bolt I'm talking about is found on the left side. Take the left wheel off, then remove the four plastic clips holding the vertically oriented black plastic cover. Once you remove this black plastic cover behind the left front wheel, you'll see a 10mm hex bolt that sure as heck looks like a fill port. Any thoughts on this?

[@numberformat]

Very calm video. Its like watching Bob Ross maintain a car.

[@josegarcia-th3pj]

the way to check this pump is working is observing the surface of the coolant reservoir and watch for turbulence like in the 2nd gen

[@NYCMP1]

Wait. I just compared info in description on both engine and inverter and it does say "Toyota Super Long Life Coolant" So nevermind my last question. Awesome work. Thank you.

[@jamessicat]

I wish you could do my service for my Prius. The Toyota dealerships in the Bay Area charges an arm and a leg for these work

[@anthonyz7023]

How much did it cost you?

[@rohitbhatnagar7599]

Thank you for the video. Actually, took the invertor radiator out (it broke), but do not what screws/clips go where. Do you have any video or a diagram you can refer me to on the internet. Which screws/clips go where. Thanks !

[@goosecouple]

My dealership charges $309 as Hybrid Cooling System Service, 3yrs/60k. I am going to do it myself. So easy to do.

[@triparadox.c]

they're called stealership not for nothing

[@qcsupport2594]

Can inverter coolant be done with front wheels up only, or does it need to be level like for the transaxle?

[@vinhlee45]

Video tutorial is wonderful! I can follow instruction and do it easily, not spend $200.00 and 3 hours waiting on line. However "its complicated since its a hybrid car and has 2 coolant systems". One coolant you show me, which one is another? Please explain to me. Thanks Very much.

[@JB-uc4zv]

Do you happen to know if the inverter coolant and engine coolant change procedure is the same with all Prius models? I have a 2013 Prius C so it's a little smaller. Not sure if the engine is the same or not.

[@anthonyz7023]

I believe the Prius c uses the 1.5liter engine

[@biglion6494]

Thank you mate your videos are great it helped me a lot , saves me lots of money. Keep going men you are doing great 😀😀👍👍👍👍👍

[@TerryUniGeezerPeterson]

Don't you have to bleed the inverter system as well, or does cycling the power on and off do that?

[@brucemoyers1006]

I just called Toyota. $3XX.XX for THIS. "WE FLUSH." That system doesn't need a flush. A straight change will be fine. I do recommend driving the car and rechecking as a stubborn air bubble might be in there. P.S., they said the parts/labor is about 50%-50%. Did you see $150 worth of labor in the video? I didn't. They wonder why they never see their vehicles after the sale.

[@michaelm9621]

God I love working on electric cars, they are so much cleaner to do maintenance on. Nothing like my F350, Camry or the Jetta TDI. Never again. Never again.

[@NutzAboutBolts]

Michael M lol, the new Camry isn’t too bad. All the other car is a POS 😂😂

[@vita9941]

@@NutzAboutBolts lol 😂

[@AA-os1sg]

Great video When you put the car into Ready mode to bleed the air from the Inverter reservoir do you allow the engine to start or are you quickly turning it off? Any help appreciated. Thanks in advance!

[@NutzAboutBolts]

No, we only power it on to cycle the inverter to suck in the coolant and turn it off

[@i3virakbothi3]

Can u please do the video how to replace the inverter water pump?

[@NutzAboutBolts]

Currently I don’t have issues with it to replace it, but I’m sure there’s a video on KZbin of someone doing it. If I had a spare vehicle I would though 😅😅

[@rohitbhatnagar7599]

I took Engine radiator and Invertor radiator off. Now I do not know which pipe goes where. There is one pipe come from Invertor and another from the transmission area. I am pretty sure these hook up to the invertor. Appreciate if you can confirm...

[@TerryUniGeezerPeterson]

Couple quick questions: 1: When you cycle on and off are you pressing the brake so the engine comes on? 2: you don't have to put the car in maintenance mode for this procedure?

[@NutzAboutBolts]

Yes, you need to step on the brake pedal to run the engine for a few seconds and turn it off. You just want the engine on to suck the coolant into the inverter. No, you don’t need to put it into maintenance mode.

[@TerryUniGeezerPeterson]

@@NutzAboutBolts according to the prius owner's manual, the inverter coolant doesn't need changing until 150k miles, and regular coolant at 100k. Is there a reason why it should be changed earlier than that, other than topping it off if it gets a bit low?

[@NutzAboutBolts]

@@TerryUniGeezerPetersonI’m down there replacing the engine coolant at the same time, 2 birds one stone type of deal, if you want to wait till 150k, that’s fine too, I change mine at 120k. That’s why I listed as 120-150k. Also depending on different climate. Harsher weather you want to change it earlier too.

[@TerryUniGeezerPeterson]

@@NutzAboutBolts oh, my mistake, I must have missed your mention of mileage intervals. Thanks for clarifying.

[@NutzAboutBolts]

@@TerryUniGeezerPeterson no worries 👍🏼

[@rohitbhatnagar7599]

Is the invertor radiator system different than engine radiator system. I have Toyota antifreeze (50/50), but plan on getting concentrated antifreeze (100) asian car version - diluting to (50/50). I will not mix, but use one for engine and other for invertor.

[@NutzAboutBolts]

They’re both separate system

[@Greg1485]

Manual says every 50k miles after the first 150k (or first 100k user pref). It's been another 50k (i'm at 230k), time to replace. I think reasoning is because it is sealed from factory? Maybe every 100 to 150k miles won't hurt? I don't know so i'm sticking to the manual. Thankful for the prius videos.

[@greatogbuagu1370]

Pls may I know what will happen if I use tap water instead if coolant in my prius inverter hybrid system?

[@Everythingiskeane]

You will fry your electronics

[@John2022-i2q]

Thank you so much, You did the best job detailed.

[@Fried_chicken_burger]

wow the old fluid looks so clean. is it because it wasn't driven much or it is supposed to be clean?

[@roystankado7769]

Just the tutorial i was looking for, cheers mate 🤙

[@MiguelHernandez-oj5bv]

Hello NutzAboutBolts, Do you need to put the car in Maintenance mode to do this service? Thank you so much for all the asome videos.

[@Senorlatulla]

No

[@rohitbhatnagar7599]

I want to drain the inverter coolant when it is very hot. This will remove all stuck garbage. How do I go about doing this?

[@IvanMartinez-ck8qw]

My inventor coolant is at e i have a 2015 Toyota Prius c i see the line is not far apart from full and empty do i need to change to whole coolant thanks ?

[@NutzAboutBolts]

What’s the mileage?

[@rohitbhatnagar7599]

How long do you wash hands after getting antifreeze on bare skin? I usually wash for 1 minute with soap, constantly rubbing hands.

[@deniswauchope3788]

Antifreeze on skin isn't all that dangerous, though it can cause skin irritation/rash. I usually just wash my hands normally & have had no problems. Drinking it is deadly, and that includes pets like cats & dogs, so please dispose of the used antifreeze at your local auto parts or wherever you can safely dispose of poisonous fluids, & don't just flush it down the toilet or pour it down the sink.

[@rohitbhatnagar7599]

@@deniswauchope3788 If something can make you blind or kill you, why would want trace amount of the substance. Even auto parts store do not take it. I have to go to hazardous waste facility. Do you really want something like this touching skin - even trace amounts? Over long term, it can have health risks. I wash my hands 20-30 times when I work with it, even with nylon gloves on.

[@haywardkong1213]

Question since I just got a 2010 Prius.... for the Inverter coolant drain system can you pull a vacuum to refill the system? like using an AirLift? I'm in the process on learning about hybrids right now... As for the Engine coolant system, I presume you can pull a vacuum ...

[@NutzAboutBolts]

Don’t need to pull any vacuum. Just refill and turn on and off the engine to have it sucked into the inverter.

[@haywardkong1213]

@@NutzAboutBolts Thanks....... now what about the regular engine can I pull a vacuum?

[@NutzAboutBolts]

@@haywardkong1213don’t need to, let gravity drain the fluids. Just follow the video and you’ll be fine.

[@haywardkong1213]

Oh one more thing... what gasket do you use for the inverter drain plug? By any chance would be be the same gasket as the transmission drain and fill plugs?

[@NutzAboutBolts]

this the gasket I use amzn.to/42OsRfL its the same gasket for the transmission drain plug

[@haywardkong1213]

@@NutzAboutBolts Thanks again :)

[@NutzAboutBolts]

@@haywardkong1213 no problem 👍🏼

[@ripptydevibes2581]

Nice video and nice voice lol. Im excited I get to charge more for this coolant flush

[@808xcountry5]

How often do I do this service? Just bought a 2014 pruis 1st time owner, I notice that to level is on the "Low" line is this normal? Also How often is oil changes ? TY

[@NutzAboutBolts]

Coolant is 120k, you can do it early too. Oil change is every 10k miles.

[@Senorlatulla]

Hey, thanks for the videos it helped alot. Do you have a video on a radiator support replacement?

[@NutzAboutBolts]

No sorry.

[@max-zl1vm]

What does the inverter do? Does it convert DC electricity from the hybrid motor to an AC current for the electric motor?

[@NutzAboutBolts]

during driving, the inverter converts DC power from the HV battery to AC power for the motors. during deceleration, there's diodes that converts AC to DC back to the HV battery, motors and also helps with the regenerative braking system.

[@flagmichael]

In addition, it contains the 12V 100A DC-DC converter for the 12 volt system.

[@TheDivineGods863]

Ok but I need that reservoir behind what you changed changed it’s bone dry how do I get the fluid

[@NutzAboutBolts]

Which fluid reservoir? The inverter coolant reservoir?

[@AlgosExplained]

is a full drain required? Wondering if there's anything against just topping off the coolant when it looks a little low.

[@chrishernandez2490]

Yes. Coolant goes bad over time and can even become corrosive. Luckily This kind of coolant lasts a very long time and only needs to be changed about every 7 years

[@emadrawashdeh4226]

thanks for the informative video, however, i have small question. do i have to remove the whole engine undercover?or it has a tiny removable/ portable part such as for oil drain? is there any way to remove the coolant using suction machine?

[@NutzAboutBolts]

you will have to remove the whole under cover to get access to the bolt. There's no way to use a suction machine for this process.

[@airos52]

This might sound dumb but I bought my car used and the fluid looks exactly like the fluid you just changed... How do you know when it needs to be changed? Is there a fluid tester for this? Is there a noise that occurs?

[@kingkav6589]

airos52 there should be lines on it that indicate "low" or "max" when its on low or below low, it needs to be changed I assume. I could be wrong lol.

[@Viper3870750]

@@kingkav6589 Lmao wow, yeah you're very wrong. Probably shouldn't give answers to matters you're not sure of smh. The fluid should be changed based on the maintenance interval per the service manual.

Can u make a video bout cleaning or replacing fuel injector

[@MrCodyw5000]

What’s the part number for the bolt gasket?

[@Senorlatulla]

No need to replace

[@laura-ann.0726]

I have a 2019 Prius Prime with the 4th gen P-610 transaxle. Is the inverter coolant drain plug in a similar position to the one in this video, on the bottom of the transaxle? I haven't removed my engine under-cover yet, so I can't see anything down there.

[@NutzAboutBolts]

I’m not sure since I don’t have a 2019 Prius prime.

[@minhphung9252]

I have a 2011. Changed out engine, water pump, sensor and thermostat. I have issue when I drive high speeds 70-80 mph up hill. Reservoir hot but not boiling like before. Temp red light would turn on or flash and then when I slow down it will eventually turn off. My mechanic replaced literally everything minus the radiator and the inverter coolant pump. Can anyone please help???? No codes or no check engine lights just the red light engine temperature turns on when driving high speeds up hill for long periods of time. Is the issue temp sensor on EGR pipes? My mechanic has replaced with all OEM parts. Any advice? Toyota service rep says might be inverter water pump, radiator clogged up, or water pump

[@JimBlack-jm9nf]

Great videos! Two questions- is it possible to get the inverter drain plug out with just a standard ratchet? I see yours has a curved handle and that there is some kind of support bar there that might be in the way other wise. Also, per another videos instructions I only bought two jugs of the coolant. Is it possible to just top off with the used coolant afterwards? Thanks!

[@NutzAboutBolts]

Yes standard ratchet will work, just make sure it’s long enough to have leverage to remove the drain plug. 2 gallons of coolant should be enough for both engine and inverter coolant.

[@JimBlack-jm9nf]

Ok great, thanks! Can’t wait to give it a try!

[@allecs4029]

Thanks for explanation! My prius 2012 has 60000 miles. Do I need change coolant ?

[@NutzAboutBolts]

no, wait till 120k

[@ryanhsing5578]

Hi Mr Nutz & Everyone. Is the coolant must be Super Long life 50/50 Prediluted Pink color? I purchased a Toyota Long Life Coolant Factory Red Fluid from Amazon. It need to dilute with distill water. It is the same after diluted and can it safe to use on Prius Gen3. It's Toyota part No 00272.

[@toninocars]

Ryan Hsing this is not the one you need , yes has to be super long life ready mix pink colour The colour pink and red are different products. Best is to use the correct one which is pink

[@GIBOvision]

Can I use my Toyota oil washers for this inverter plug?

[@NutzAboutBolts]

@@GIBOvision it’s the same size washer as the transmission drain plug.

[@shaazy]

I had a question about the radiators in the front. I see that they're kind of split into two individual ones right behind the front bumper. Can you tell me which ones the engine radiator, AC condenser or invertor radiator?

[@icarrysig]

My car is making this noise 5:46 every 20 seconds. What do you think causes this

[@PufakCo]

thanks for the video. But why and how often I must drain and refill? will the fluid lose its characteristics after a specific time? thanks again.

[@NutzAboutBolts]

+Murad Maithalouni Like any fluids in your vehicle, over time the coolant degrades because of heat from cooling down the inverter and such. You want to change it every 120k miles just like the engine coolant.

[@PufakCo]

+NutzAboutBolts , Thank you for the advice. useful info indeed.

[@NutzAboutBolts]

+Murad Maithalouni np :)

[@billallen1307]

What brand, what kind of fluid do you use? That is essential information!

[@NutzAboutBolts]

It’s in the description box. Toyota 50/50 pink coolant

[@Bo_SH]

Just to confirm, is this the same coolant that’s also used with radiator?

[@NutzAboutBolts]

No, there’s 2 coolant system, ones for the engine and ones for the inverter.

[@Bo_SH]

@@NutzAboutBolts thank you. do they use same type of fluid? Or is there fluid specific for the inverter?

[@NutzAboutBolts]

@@Bo_SHthey use the same 50/50 pink coolant from Toyota

[@ZamaniSahib]

When cycling through ready mode, is your foot on the brake pedal?

[@NutzAboutBolts]

We step on the brake pedal when we’re ready to hit the power button. Make sure to turn off the vehicle before the engine turns on.

[@MrTmenzo]

Awesome looks easy.

[@NutzAboutBolts]

It’s pretty easy

[@nicoj3660]

Mr nutz, do I really need 2 gallons for this? I'm also doing the engine coolant change. Would 3 gallons be enough for doing both engine coolant, AND inverter coolant? Thank you...

[@Senorlatulla]

Yes

[@shakenbacon100]

I’m not quite at 110k. About 5k short. Can I juts top off till I reach 110k ? Reading low.

[@freeukraine850]

Can I use Prestone or other mainstream brands Coolant which is much cheaper than Toyota's brand?

[@NutzAboutBolts]

No because they will sludge

[@keyable]

Liked! but Why do u ever need to replace it?

[@NutzAboutBolts]

over time, the coolant will lose its chemical properties, so it needs to be change to help cool down the engine heat.

[@keyable]

NutzAboutBolts thanks for your info! When should I change it?

[@NutzAboutBolts]

120k miles

[@samuels4130]

How often you have to drain and change the coolant and the converter coolant change?

[@NutzAboutBolts]

120k miles

[@samuels4130]

Thank you

[@chetanvangadi]

How much coolant is required for drain and refill of the inverter?

[@NutzAboutBolts]

I used about half of the gallon to refill

[@tavonargu6975]

Sorry if my question is dumb, but can you just refill it or you have to drain it all the time before refilling it??

[@NutzAboutBolts]

You drain and refill every 120k miles because the old coolant loses its chemical compound so it won’t cool the engine as well as the new coolant.

[@skorpyo331]

This is necessary before working on manifold/egr valve?? Prolly the other vid on engine coolant?

[@devoidbmx1]

Not necessary, but might as well get it done at the same time since you will have the undercover off the car when you do those jobs. Inverter coolant should be changed at about 120 thousand miles on odo. I did an engine coolant and inverter coolant and transaxle fluid change all at the same time I did my EGR system and intake manifold clean. All of these items should be done at 100 or 120K.

[@greatogbuagu1370]

What will happen if u use water in place of this pink coolant ?

[@Senorlatulla]

Most likely blow a head gasket

[@toninocars]

Nothing in short term and a lots of trouble in long term Corrosion, failed pumps and blocked passages, complete inverter failure also possible

[@nonenone4078]

@@toninocars what if I wanted to flush the engine coolant with distilled water for a few minutes ?

[@asiboy2912]

Hi, can you use that type of coolant in the engine too?

[@NutzAboutBolts]

Yes

[@danrunnoft6642]

Will 2 gallons be enough coolant to do both inverter, and engine cooling systems?

[@NutzAboutBolts]

Yes, I used 2 gallons for both

[@danrunnoft6642]

@@NutzAboutBolts Thank you so much!

[@tkels5471]

Jose, is the plug and process the same for a 2016? Great videos!

[@BTM37]

Rather than getting under the car to drain it, could you pump it out the top like you did with the brake fluid?

[@NutzAboutBolts]

+BTM37 you won't be able to get all of it out since it sits on the bottom, the top is just the reservoir.

[@BTM37]

+NutzAboutBolts I don't like getting under my car generally, but after being quoted $200 for this service, down I go! Thanks guys!

[@NutzAboutBolts]

+BTM37 yeah that labor charge is off the roof lol

[@johnsack7903]

what kind of gasket is that? i am trying to find the item to purchase. thank you in advance.

[@Senorlatulla]

No need to replace

[@toninocars]

24x18x2mm aluminium washer same as gearbox oil torque to 35Nm

[@elruforafa]

Why is so important to replace de coolant rather than just filling it ever since the drained coolant looks as new as the one to be replace.? Thanks.

[@NutzAboutBolts]

Because overtime, heat from the engine will dissipate the chemical compound that’s in the coolant that prevents the engine from overheating. By just refilling the coolant when it’s low and not doing the drain and refill, you’re just diluting the coolant effectiveness overtime. It wouldn’t be 100% effective in cooling the engine, so it’ll start damaging your engine by overheating.

[@dogfacedponysoldier87]

Is the inverter coolant the same as the red antifreeze coolant in the other reservoir?????

[@asb81689]

Yes it is

[@NutzAboutBolts]

Red and Pink coolant is different. Use the pink coolant. Red is for older models.

[@TheKobotron]

Good video very good information 👍

[@_Jamal2012]

hello i have a 2010 year toyota prius and the cooling pump that I have compared to second generation of prius it seams different, 2nd generation one is boiling but mine is still so does it mean mine is damaged?

[@NutzAboutBolts]

2nd and 3rd gen prius WP is different.

[@3941602]

Why would my inverter tank be leaking at bottom of radiator it's always low I have to refill it every two days

[@NutzAboutBolts]

Find where it’s leaking from.

[@3941602]

NutzAboutBolts thanks for the reply! it is actually radiator resavoir is leaking but I have fluid when I take off the cap directly on the radiator the aluminum cap that is full

[@NutzAboutBolts]

So your radiator is leaking from the bottom? Is the engine coolant reservoir leaking? Or is the radiator leaking at the bottom? If the radiator is leaking, you should replace the radiator.

[@3941602]

NutzAboutBolts The radiator itself is full the resovoir is leaking and yes it's coming from the bottom. I'ma subscribe for your reply back to.

[@NutzAboutBolts]

Inspect if the radiator reservoir is crack, if so, replace it and then recheck to see if it’s still leaking.

[@anthonyz7023]

Can you vacuum fill coolant inverter tank??

[@NutzAboutBolts]

Never tried it.

[@hannumannu]

all 3rd generation prius have same 10mm hex key drain plug for inverter coolant? or some other sizes in different variants?

[@NutzAboutBolts]

yeah all Toyota have 10mm hex for those drain pan.

[@paultrevino8462]

Can I use the same coolant for motor oil and inverter coolant for the Prius

[@NutzAboutBolts]

Yes, the engine and inverter coolant are the same.