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2012 Audi A6 difficult to find Coolant leaks 3.0tfsi supercharged
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- Опубліковано 19 сер 2024
- This video shows how to Identify difficult to find coolant leaks on a 3.0tfsi audi. Talks about what is required to replace those components
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great intro for preventive maintenance . hope this gets posted to all the Audi DIY forums. thanks!
Thank you!!
Thank you for providing a video that explains and shows you (clearly) what’s-what. Any helpful tips on removing the PCV breather hoses that connect to the valve covers? I’ve seen a few DIY’s but not convinced those method will work. Thanks and be well!
They can be a pain, I’ll make a video about how i remove those next time I’m doing it, thanks
An additional point to the PCV… another big (and pretty scary symptom) is the internal plastics failing which allows your coolant to mix with your oil. Won’t cause immediate engine failure as long as it doesn’t overheat, but it will make the job 3x as stressful, since you’ll need to run about 3 cycles of oil to fully clean the motor’s internals if this does happen. My suggestion if the car is over 10 years old or nearing 150k miles, just do it before you have this happen.
This happened to me 4 days after I bought my a5 3.2l. It was a headache but I did it all myself and under $500 a year and a half later still going strong
@chrisoakes8345 nice work!
Thanks for taking the time to post this, very useful!!
Also add 2 things.
The front plastic crossover pipes get very brittle and if you touch the small hose nipple top front of engine it breaks.
Also the plastic hose that goes into the rear of the thermostat housing end deteriorates and will break unexpectedly.
Replace it with the Pcv valve.
Nicely done vid with good info!
Thank you I appreciate that
Good dude. Knowledgeable.
I appreciate that
Rhanks for this video,
The 2015 Audi Q7 will it be similar to work on?
I have coolant leak from engine can't find out where is coming from
Yup, very similar, a little more room on the q7 off the front too
I got an 04 Audi a6 c5 with coolant loss and i mean it gets sucked out of the tank with no visible leak acceleration went up at idle turned car off and no more heat figured thermostat. I have an engine to swap in but need someone with experience.
nice video sir
Thank you! I appreciate that
What's the average timing for something like that
Id say 4 or 5 hours of work
@@EuropeanAutoRepair how much would this cost ?
Somewhere between 1000-1500usd I'm guessing
Hello
Please tell me where’s the fuel temperature sensor located on Audi a7 3.0 TFSI
Best regards
Hi I had same challenge on A6.With the help of an experienced Service technician, I found the leakage to be coming from underneath the reservoir itself. u can only spot this when the car is very hot and running.
Good find!
Great video. If you end up needing to do the PCV, would it be worth doing the water pump, tstat, oil filter housing, intake valve cleaning all at the same time as preventative maintenance?
Depending on the miles that probably wouldn’t be a bad idea
@@EuropeanAutoRepair Where are you located and what's your shop name?
I have a 2013 Audi A8 with the same issues as the one in this video. I want to change the oil seperator and the Thermostat housing like you said. Do you have a parts list of everything that you recommend to change while I have this torn down? You mentioned the gasket's for the intake as well. Just wanted to know what all you recommend.
What was the solution? Thanks did you have misfires pending?
Great video. How many hours did this job take?
Thanks! I'm not sure on the time. I'd guess 4 or 5 hours maybe.
Is it possible to remove the coolant pipe going into the thermostat without removing the thermostat? Mine is leaking so I am trying to remove it without removing the thermostat. Thermostat was replaced 30K miles ago and is fine, don't want to break the seal on the thermostat if I don't need to.
Yes absolutely, with the water pump pulley pulled off and sometimes the brake vacuum pump you can get it off there
@@EuropeanAutoRepair I am actually referring the coolant pipe which connects into the back of the thermostat housing, and goes to the heater core (vertical) Product ID: 06E-121-065-N. Mine is likely broken or the seal is gone, need to finish my disassembly. I don't want to pull the thermostat and break the seal, gasket is close to as much as a new thermostat. Thanks for the quick reply!
@@Hitmanjat ahh, yeah you can remove the supercharger and the pass side lower intake and pull that pipe without disturbing thermostat as well
Do you have a vid on removing the oil filter housing ? Also you said it can be done without removing the supercharger?
Next time I replace one ill make a video. Yeah it's not worth the effort but It's possible
@@EuropeanAutoRepair Have the solid oil leak down the back/sides of the engine and landed on the housing gasket, which I've not done but I did not replace the housing and I still have the leak. Oil is visible on the underside after 15 min drive after wiping the underside dry.. Possibly the housing or a bad timing chain cover leak as this point I think. When I did the housing gasket I didn't get the housing fully removed due to the one stud its mounted with and there being a bracket blocking you from removing the housing. Curious if when you remove the housing you are able to remove the bracket behind it to do so? The bracket holds the wiring harness. Thanks in advance!
Yeah I remove the bracket all together and side the housing off the stud
@@EuropeanAutoRepair Thanks - going to have a close look at the housing, thinking it might be worth replacing before moving onto something like timing chain covers.
Yeah those oil filter housing will leak more server than the timing covers from what I’ve seen
Do you know how much cost it could be to replace whole assembly? I have same problem.
I’m honestly not sure off hand
Hi. Can PCV diaphragm only be changed?
Yup! The dealer sells a oil separator repair kit that comes with a diaphragm and cover
@@EuropeanAutoRepair So, if this diaphragm goes bad, it can allow coolant into the oil, looking like a head gasket problem? Is that correct, or what is the deal with that?
@@GreenTekHaus The diaphram just regulates crankcase vaccum so it couldn't cause that but the oil separator housing could. I haven't seen it leak coolant into a oil passage usually it leaks externally but I think it's a possibility
Bro I have 2012 a6 Quattro . My coolant is mixing with the oil and advice ?
Make sure it’s engine oil and not transmission fluid, I’ve seen the radiators fail in a way that lets the transmission cooler leak into the coolant
@@EuropeanAutoRepair thank you I never thought of that I’m taking it to the mechanic tomorrow morning thank you 🙏🏽
@DeemRawGode I hope it doesn’t end up being too costly for you, no problem
can you recommend someone in who can fix coolant leak on a 2018 q7 3 liter gas in NY or CT?
Sorry man I don’t really know anyone from around there, I’d search local European independent shops
@@EuropeanAutoRepair thatx. That might be a good start.
How much would something like this cost?
Labor charge somewhere around a grand I'd guess
just why is there plastic next to hot metal 😅
Hi, how many miles this car had?
I’m not 100% sure on that, guessing over 100k