How to Diagnose and Fix Low Coolant Warning for Audi (A3 8V) / VW
Автокөліктер мен көлік құралдары
As of April 1, 2024: 587 Likes, 30 Dislikes (95% positive)
A video on how to diagnose and fix a low coolant warning for Audi’s and Volkswagen’s, specifically for a 2015 Audi A3 8V. If you get a message “Switch off engine and check coolant level!” on your dash, this is the video for you. This is a very easy fix and is a great one to do yourself.
Text version of this video is available at my website along with a TL;DR: mattpopovich.com/posts/how-to...
View my playlist of Audi A3 videos here: • Matt Popovich's Audi V...
Note that the coolant temperature gauge is replaced with a boost gauge on S3/RS3's. You can find the S3's engine oil temperature by following this guide: • 2015 Audi S3: Engine O...
Note that oil temperature is different from coolant temperature, read this article for more information: www.tuneruniversity.com/blog/2...
Lastly, this video will show you how to modify an S3/RS3's settings via OBD2 to add engine oil temperature to the instrument cluster: • Display Engine Oil Tem...
Links:
* All of this information is available in pages 205-206 of the Audi A3 owner’s manual (you should read this): ownersmanuals2.com/audi/a3-se...
* OEM coolant (concentrate): Pentosin Pentofrost E
* 1.5L Part Number: 8113106
* ~$15 + shipping: www.fcpeuro.com/products/pp-c...
* ~$20: shop.advanceautoparts.com/p/p...
* 5L Part Number: 8113206
* ~$40 + shipping: www.fcpeuro.com/products/audi...
* ~$60: shop.advanceautoparts.com/p/p...
* Distilled water (affiliate link): amzn.to/3RnV4E5
* FCP Euro coolant mixing table can be found at either of the fcpeuro.com links above
Audio from:
* Dr. Dre - The Next Episode (feat. Snoop Dogg): open.spotify.com/track/4LwU4V...
* C-Trox - Kyrie Irving (Instrumental): open.spotify.com/track/29XO76...
Thank you to the following clips for being created and are used under fair use:
* Thanks to audioalter.com/pitch-shifter for shifting the pitch of my sound effects!
* www.urotuning.com for images of Audi coolant concentrate and mixed
* Apple for emojis
* Bill Nye image: cdn.vox-cdn.com/uploads/choru...
Chapters:
0:00 Intro
0:16 First steps: can you keep driving?
1:18 Checking the coolant level
2:07 Which coolant to use?
2:41 Coolant vs antifreeze
3:54 Cutting the concentrated coolant
4:22 Adding coolant to the car
5:48 What causes low coolant levels?
6:41 Outro
For business / licensing, contact:
* inquiries@mattpopovich.com
Disclaimer:
Matt Popovich is not a mechanic nor a chemist. Please do your own research and consult with a professional before attempting any DIY repairs. Matt Popovich assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Matt Popovich does not provide a warranty for any of the listed information and does not guarantee any expressed or implied result. Use this information at your own risk. Matt Popovich recommends safe practices when working on vehicles and or with tools seen or implied in this video. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Matt Popovich.
Пікірлер: 91
After further research, it appears that deionized water (also known as DI water) is preferred over distilled water (kzread.info/dash/bejne/aH9hp6eiiN2rXdY.html) for mixing. However, due to its cost (affiliate link, $15/gal: amzn.to/3DkwAXy), and the owners manual stating that "mixing the coolant additive with distilled water is recommended", I will continue to use distilled water ($1/gal, affiliate link: amzn.to/3RnV4E5). Moral of the story: deionized water > distilled water >> tap water Apologies for not mentioning this in the video. Let me know if there's anything else that I missed!
Thank you so much. I was afraid of doing it wrong. Now I feel confident
Thank you! Excellent video. Very helpful
Thanks for the video! Very helpful!
This is so helpful, thanks you!
Thank you so much, I’m stuck here at the gas station with this problem, and I search online about what can I do with overheating in Audi, and your video explains a lot and clear. Thank you so much for this, you really help me.
@mattpopovich
Жыл бұрын
Thank you for commenting, that makes me so glad to hear that it was helpful!
Super helpful! Thank you so much.
Awww so helpful ❗thank you for taking the time ❗
Thaanx man !
As a petrolhead I was surprised many people don't know simple things like this but realise not everyone is into car maintenance. In my country we need to take a basic car maintenance course and pass the exam before we take the driving licence test. How to change a flat, take care of engine and gearbox oils and other fluids, deal with overheating engines and so on. Every car is different though.
@mattpopovich
Жыл бұрын
I think the lack of knowledge needed to drive a vehicle (road and traffic laws are the only things required to get a drivers license here) and the lack of training and testing in the United States (pass the drivers exam once and you're good to go for life) is a weakness which results in increased accidents, traffic, and general displeasure while driving. Here, we rely on friends and family (and the internet!) to help us and teach us things about vehicle maintenance. But not everyone has someone like that! Hopefully I can be that person for some people :)
Thank you for this helpful video. I had the same issue with my Audi A3 Quattro.
@MultiInKIEto
Жыл бұрын
Are you having issues with the water pump/thermostat?
Thanks man❤
Useful video, it does feel scary when it comes up yet such an easy fix. On later model it's worth doing the OBD2 tweak to show oil temp in instrument cluster as it is replaced by a boost gauge so not visible otherwise.
@mattpopovich
2 жыл бұрын
Great point! I completely forgot about that. I believe the oil temperature gauge is swapped out for a boost gauge in all S3/RS3 (doesn't matter the year). See this video for an example of a 2015 S3 PLUS they show how to get an oil temperature reading without doing any OBD2 tweak: kzread.info/dash/bejne/nIeIpZd_c8mwlKQ.html For anyone else reading, here's how you can do the OBD2 tweak that @Beardchanics Garage mentions, he has a great video on it: kzread.info/dash/bejne/X2GeydZwmtyTqNI.html Sweet channel you have there! Thanks for commenting!
Super informative video! I also have an Audi A3 and this exact message popped up with the warning and I was so scared! I had to pull aside and turn off my car for a few minutes then turn it back on and it was fine somehow. Now I know how to fix this, thank you so much!! (Girl) 😂
@mattpopovich
Жыл бұрын
Thank you for commenting Serena! You got this!! 💪
Thank u!
@mattpopovich
2 жыл бұрын
You're welcome, hope this helps!
Thanks.
@mattpopovich
2 жыл бұрын
You’re welcome, hope it helped!
Very helpful video. I do have a question though. Do you need to leave the cap off, run the car at high heat to get rid of any possible bubbles, and then put the cap back on the reservoir after running it for a few mins or however long?
Hello, we have a 15” supercharged Q7, coolant is a little low and I want to top it off. So I can use the pentofrost or do I need to get the G13 Audi coolant. The current coolant in here is the stock dealer coolant.
got this warning on my 2015 S3, but when I opened the lid for the coolant, it went up to max!!! was that a fake error? Now I have it a bit over max...just in case :D....Update on things...the water pump had a leak and was replaced
The animations are sweet! What editor are you using? Also, check out that front vs rear wheel speed difference at the end. Was that traction control kicking in to try to put most of the torque to the rear?
@mattpopovich
2 жыл бұрын
Appreciate the kind words, Dan! I use Final Cut Pro. No fancy animation plug-ins, just basic shapes and keyframes (for now). The keyframes basically let me set one value at a certain time (Ex. shape positioned at x,y), then another value at a different time (position = x+5, y+5), and FCPX will interpolate everything in-between to "animate it". This can be applied to many different attributes such as opacity 3:14, position 1:49, crop/trim 0:33, etc. This was my first time using the "highlighter" affect which I learned from this video: kzread.info/dash/bejne/ZomFlayDicjAZtI.html It's pretty tedious and time-intensive but it works! I'm glad you stayed until the end to watch the launch at 6:44! Look familiar at all? ;) That's the FWD-biased Haldex Quattro at work. The front tires are spinning throughout the whole launch, but it appears to me that the rear initially starts spinning almost immediately, then all power is shifted to the front, then the final decision is to shift power back to both. Traction control was disabled for the launch if I remember correctly. I believe we're just watching the AWD system at work. Pretty interesting.
For some reason my 2001 audi tt low coolant light stays on but my coolant tank is full and no leaks.. any ideas? I also put a new coolant tank in and that didnt resolve the issue either.
So i put the liquid to the seam area. After a day or two i find it low (in between max/min lines). After that i refilled to the seam, then again dropped after a day to between the max/min lines. I am bit sure if this is normal or not?
Hiya im filling everyday doing about 25 miles and light come on have had radiator done checked for leaks but nothing found but after driving i pull over i see water coming out what could my issue be
What if my coolant ball is dirty can we clean it? I just got me this car
My coolant light goes off and on.. the temp gauge at correct temperature I have coolant it’s between the min and max lines.. could this be sensor?
My low coolant light comes on regardless of whether or not it's full but the temp gauge is just as important than the coolant being full so I keep my eyes on the gauge. Plus my car is a Chevy Lumina from 1997 so it's very old and some dashboard lights may not read accurately.
@mattpopovich
Жыл бұрын
Ooh, gotcha. Yeah, if the coolant light is unreliable then definitely keep your eye on that temperature gauge! Remember that just because it's cooling down out there, coolant is still important to keep the engine from freezing in the winter as well as cool in the summer. Good luck!
Hi Matt, great video. Thank you for helpful tips! Digging deeper, what was the issue with your A3 8V for the coolant to be that low? I'm living the same situation right now with my A3 8V. (Bad head gasket seal? Water pump went bad?) Local garage filled me up with OEM G13 because i was near the same level as you were,way below minimum. They filled it a little over the maximum 3 days ago. Now I'm just below max , maybe it overflowed without me noticing,,, is it possible? I haven't noticed any leaks on the ground before or after they filled. It's entering the shop on Monday but I'm curious to know your issue.
@mattpopovich
Жыл бұрын
Hi Gab, thanks for commenting. I don't know what caused my coolant to be low and frankly I don't plan on doing any further investigation, refilling with coolant once every few months is cheap and easy enough for me! As for your coolant going from above max to max, it could be a few things... If you checked the level before running the engine, the coolant could have "settled" to the lower level. It could have been warm (mid day or just recently ran engine) causing the coolant to expand when you first checked it and cool (evening/morning before you ran engine) causing the coolant to shrink a bit when you checked it later on. It also could be a slight leak somewhere. But I don't think overflow is a possibility as the coolant reservoir does have a lid on it preventing that from happening. Since your comment was a few days ago, what did the shop have to say?
@gabperreault2508
Жыл бұрын
@Matt Popovich Hey Matt, I appreciate the response ! Thanks again for all the useful information 👍 Coolant has kept its level these last few days, The shop didn't find anything abnormal, no signs of leaks and able to keep engine at good temp. But I will keep an eye of my reservoir. Cheers!
@mattpopovich
Жыл бұрын
@@gabperreault2508 Glad to hear! Mine is an 8 year old vehicle with 120k miles on her so some minor work to keep her going is expected. Being that I'm waaay out of warranty, not sure what year yours is, but the $200+ diagnostic fee that Audi dealers charge can buy a lot of coolant (www.fcpeuro.com/products/audi-vw-coolant-antifreeze-pentosin-g013a8j1g) 😉 Cheers!
Hey ! Thanks for sharing I did not see the full video and topped the coolant to the max of the container and not between the lines How should I proceed? Drain all? How to drain? Or is it ok to drive. Oh dear.
@mattpopovich
Жыл бұрын
Well worst case, the coolant can expand when it gets hot. If the coolant reservoir is full it could have nowhere to expand to and could cause a hose to burst or crack and get fluid throughout the engine possibly damaging electrical components. If the reservoir is completely full I would not drive until I sucked the excess coolant out of the reservoir. If it's a little over the line then you're probably fine, but I would get the coolant level back within the minimum and maximum line sooner than later. To suck the excess coolant out you can use a baster. While they're good with hot temperatures (this one can handle up to 450˚F), I'd still let the coolant cool down a bit after driving (affiliate link): amzn.to/3K3qnRd
@jhonhernandez3540
Жыл бұрын
@@mattpopovich awesome man! Thank you
@mattpopovich
Жыл бұрын
@@jhonhernandez3540 Good luck! Thanks for watching!
Did the manual say how full it should be at which temperature ? I'm currently at -7⁰C outside so I should only top up to minimum ?
@mattpopovich
6 ай бұрын
It does not: ownersmanuals2.com/audi/a3-sedan-s3-sedan-2015-owners-manual-71870/page-208 I'd recommend, if it's one of your coldest winter days, wait until the car is cold and add coolant to the minimum line. My thinking is this is as cold that the coolant will ever be, it will always be warmer (and thus expand) above this point once the temperature outside warms up or once the car runs. If it gets colder or you get a low coolant warning, you can always add more!
What if my coolent look brown wit lil black in it can I still fill it or flush necessary
@mattpopovich
Жыл бұрын
Uhhhh what car do you have? What coolant does it take? I describe different Audi coolants at 2:19. A flush probably sounds like the right thing to do but I don't know if "necessary" is the right word for it.
What if I see a leak at the bottom of the engine bay, could it be a hose leak or replace the whole water pump
@mattpopovich
2 жыл бұрын
Well first are you sure it’s coolant leaking? Is it pink -> coolant. Blue -> windshield washer fluid. Is it oil? Use a white paper towel to soak it up and more easily identify it.
My coolant warning was on when I turned on the engine, and then I checked the coolant; it's basically an empty tank. Does that mean my coolant is leaking? Should I add coolant till the minimum line and keep driving?
@mattpopovich
Ай бұрын
Empty coolant tank = not good! 0:51 "It's okay to keep driving with the low coolant light on as long as your engine stays at the normal operating temperature" 5:48 "The coolant system is a sealed system. No coolant should be able to escape. Thus, if you're low on coolant, then that suggests a problem. If you have to add coolant regularly, then that suggests a problem. [...] If you need to add coolant once or twice a year, it's not a big deal." I would add coolant between the minimum and maximum line and keep an eye on it. That should answer your question as to how bad it is leaking!
I drive a 1997 Chevy Lumina and my low coolant light is on but I have no leaks whatsoever and the needle on my temp gauge stays on the left side and moves close to the mid mark as I'm driving not right in the middle. I check my coolant level and it's below the min line. Coolant still remains in the tank though. My mechanic gave me a new water pump last time I bought it to him and it can't be the sensor because he would've fixed that.
@mattpopovich
Жыл бұрын
Sounds like everything is working on it? I'd say just add coolant so it's not below the minimum line and go from there!
@bryanrizzo9377
Жыл бұрын
@@mattpopovichI definitely will add coolant before we move into the winter months when it gets freezing. I check under the hood to make sure there's no antifreeze leak and there hasn't been anything leaking. Old cars may have a habit of triggering warning lights to go on even when there is no problem with the coolant,oil,etc. For now I'm just going to continue to keep an I eye on my temp gauge and as soon as it goes above the middle I'll pull over when I can ofcourse and turn the car off.
@mattpopovich
Жыл бұрын
@@bryanrizzo9377 I mean it sounded like the light was on because your coolant was below the minimum line. If you add coolant, the light should turn off.
My coolant warning comes on after a cold day/night but the coolant level isn't low. It's within the min and max line. Could this be a sensor fault?
@mattpopovich
Жыл бұрын
Hmm does the coolant warning turn off as well? If so, it sounds like the sensor is working.. maybe somehow calibrated wrong? I'd recommend double checking the coolant level when the warning comes on and when the warning comes off and then going from there.
My light went off, but yet the coolant is at proper levels. Think it’s a sensor issue?
@mattpopovich
Жыл бұрын
So to clarify, the low coolant light is on even though the coolant is at the proper level?
Do I need to empty coolant tank before adding new coolant?
@mattpopovich
8 ай бұрын
As long as you're adding the same type of coolant (or a type that can be mixed 2:07) and have no reason to believe your current coolant is dirty/contaminated, no need to empty the coolant tank before adding new coolant! CARFAX says flushing (completely emptying then filling with new coolant) every 100k - 150k mi is a good idea: www.carfax.com/blog/coolant-flush#:~:text=Is%20a%20Coolant%20Flush%20Really,hit%20100%2C000%20to%20150%2C000%20miles.
I have an s3, so that temp gauge is replaced with a boost gauge. I keep getting the warning, but my coolant is just above the top line, like the owners manual says
@mattpopovich
Жыл бұрын
Correct! Unfortunately I forgot about that when I published the video but I mentioned in the video description that there is a way to find the engine oil temperature on S3's, check this video for more information: kzread.info/dash/bejne/nIeIpZd_c8mwlKQ.html Note that oil temperature is different from coolant temperature, read this article for more information: www.tuneruniversity.com/blog/2011/05/keep-your-engine-alive-the-importance-of-oil-temperature/ Does the warning come on immediately when you turn the car on? That leads me to the car thinking the coolant is at the wrong level (likely low, not sure if the warning will come on for too much coolant).
@FaZePoopCheetah
Жыл бұрын
@@mattpopovich it comes on right when I turn on the car but only the first few times (I deliver pizza for work so I do a lot of start/stopping) after a few deliveries it will no longer give me the message.
@mattpopovich
Жыл бұрын
Hmm.. Weird. Do you park on a hill? I'm not sure why that would be happening. But it shouldn't be too serious if the warning goes away! 🤞
@FaZePoopCheetah
Жыл бұрын
@@mattpopovich it is very odd. I park on a hill at home but I’ve tried pulling in and backing in but it still gives the warning. I’ve also tried parking on the street to see if the slanted driveway was the issue. Nothing changed. I did, however, just have the thermostat housing replaced. (There was a leak) I check the coolant every day just to make sure and it’s always inside the parameters. I really don’t know what’s wrong
@marioanaya6721
6 ай бұрын
@@FaZePoopCheetahsame here. 2015 S3. Dealer replaced water pump and thermostat. Coolant is right at the max line, I check it every time I drive, still no change. I’m not sure why the warning would come on… any updates on your situation?
Why does the distilled water evaporate in a closed (sealed) system?
@mattpopovich
Жыл бұрын
Good question and sorry if I wasn't clear about it at 5:48. Because the system is closed (sealed), you won't lose any coolant to evaporation. However, if you are losing coolant (to evaporation), that suggests that the system isn't closed or sealed and we unfortunately have a leak somewhere... I have a leak in my system due to having low coolant. I can either try to find the source of the leak (expensive + time consuming) or I can just keep adding coolant (cheap + quick). I probably only have to do it twice a year or so, so it's not a major problem. 😅
@MultiInKIEto
Жыл бұрын
@@mattpopovich did you find out if the thermostats/water pump was the issue?
@mattpopovich
Жыл бұрын
@@MultiInKIEto Not sure if you meant to reply to a different comment as I didn't mention a termostat / water pump, but no, I haven't done any investigation there and I don't plan to. I will continue to top off with coolant a few times a year. Much more economical option.
I added coolant to my VW passat but the indicator is still ON and when I checked back there is no coolant in the reservoir. what can be the problem ?
@mattpopovich
2 жыл бұрын
Sounds like a leak to me. Check underneath your car. See a bunch of coolant pooling up?
@rahulfarakte2049
2 жыл бұрын
@@mattpopovich thank for reply Matt. I dont see any leak.
@mattpopovich
2 жыл бұрын
@@rahulfarakte2049 hmm well where’d it go!? 😜 how long was it between adding coolant and seeing no coolant in the reservoir? I would add coolant, let the car sit overnight, see if coolant is at the same level in the morning. If it is, I would then start the car, let it run for a few minutes, see if coolant starts leaking. If we can recreate the leak, then we have a starting point to fix it.
@rahulfarakte2049
2 жыл бұрын
@@mattpopovich I added the coolant almost touching max level and got in the car and started it, the indicator was still flashing so I got back and looked the tank and it was all gone. Even I am wondering where did it go 😀😀
@mattpopovich
2 жыл бұрын
@@rahulfarakte2049 oh no!! 😂😭 let me know if you find anything out. I’d try not to drive it anywhere. If you must, keep a close eye on the engine temperature gauge as mentioned at 0:52.
Any idea what the consequences of topping up with half a litre of tap water might be? Asking for a friend.
@mattpopovich
Жыл бұрын
Haha, tell your friend that the consequences seem to be early rusting in water pumps and heat exchangers (years down the line): kzread.info/dash/bejne/aH9hp6eiiN2rXdY.html Also mention to them that page 205 of the owners manual states "mixing the coolant additive with distilled water is recommended". ownersmanuals2.com/audi/a3-sedan-s3-sedan-2015-owners-manual-71870/page-207 You can get it from any grocery store for a couple of dollars. Not worth the long-term risk of using tap water. I'd rather drive to the store on low coolant, keep an eye on the engine temperature gauge, then buy some distilled water vs. using tap water as a quick fix. However, if it is just a quick fix, in the short-term, I think you'll be fine with tap water. That's what mechanics used to use back in the day before they realized tap water was causing rusting in water pumps and the like. Just note that you'll want to flush the coolant system sooner than later to get rid of the tap water, then fill it up properly with concentrate + distilled water. Other sources: kzread.info/dash/bejne/jK1-mJdwk7TOYrQ.html kzread.info/dash/bejne/ZWycttxvidCTiNY.html
What if you have a TDI
@mattpopovich
Жыл бұрын
I believe this video applies to TDI models as well. Check your owners manual to be sure. Your coolant reservoir will have a label of what coolant type to use (Ex. G13), which should be one of the options in my table shown at 2:20.
What if the hazard don’t turn off
@mattpopovich
5 ай бұрын
The hazards can be turned on and off from a button in the center of the dash. Check this video for additional information: kzread.info/dash/bejne/aI1trLWbf8qXprQ.html Does that help?
@Only1Jfinesse
5 ай бұрын
@@mattpopovich not the hazard light the coolant light on the dash what if and don’t turn off
1 9
@mattpopovich
2 жыл бұрын
?
PЯӨMӨƧM
@mattpopovich
2 жыл бұрын
?
Well they diff no how to make money selling special water for your car.😂😂😂 an people buy into it you no it does heat up aye when in circulation an do math on rest ,i dont no