Definitely sounds like the thermostat housing.Looking to get mine in before the warranty expires. I can smell coolant after I drive it and I have to top off multiple times a year. Even people who get out of my car can smell it.
Dealership texted and said that the thermostat housing is completely dry, and that they took a photo which they will share when I pick up the car. Is this sufficient proof that the thermostat housing is fine? I have never smelled coolant like others have reported, and the amount of coolant loss is small compared to other people in this thread.You can sometimes see the leak from the top. The housing lies underneath the intake manifold next to the trans. The leak usually ends up crawling down the front of the block. It will build up on the pan rail. An inspection mirror will help if you can't get underneath. This is a known issue with these so arming yourself with info will help.
Ask them to see it from underneath if they're so sure its ok.
Sounds legit. How much coolant are you losing and in how many miles?Dealership texted and said that the thermostat housing is completely dry, and that they took a photo which they will share when I pick up the car. Is this sufficient proof that the thermostat housing is fine? I have never smelled coolant like others have reported, and the amount of coolant loss is small compared to other people in this thread.
Seems like you may be ok. if you don’t smell coolant, then you’re likely not leaking any. Keep an eye on the level as you have been and enjoy the car.Dealership texted and said that the thermostat housing is completely dry, and that they took a photo which they will share when I pick up the car. Is this sufficient proof that the thermostat housing is fine? I have never smelled coolant like others have reported, and the amount of coolant loss is small compared to other people in this thread.
Photo with level and miles was posted yesterday. About an inch or so after 5000 miles.Sounds legit. How much coolant are you losing and in how many miles?
Thanks again, I appreciate the 2nd opinion!Seems like you may be ok. if you don’t smell coolant, then you’re likely not leaking any. Keep an eye on the level as you have been and enjoy the car.
I have not heard one way or the other if the product has ultimately been fixed. A part number revision does not necessarily a part revision. Typically manufacturers will revise part numbers when they switch production vendors. It is easier to track batches if there is a larger issue.So my gti has only 3000miles on it and I have to top it off 3 times already. I am in a similar situation where I am unable to locate the leak. Do we know if the lates revision of the thermostat rev “M” has fixed the issue once any for all? Sorry if this was already asked but I couldn’t find a solid answer. I also read that new gti will need to be topped off more often but will leak less over time. I am debating if I should bring it in the dealership now or wait until it gets worse.
If you see any coolant crustiness around the cap, replace the cap. There should be no coolant smell- if you smell it, it's leaking. Sooner or later, it WILL overheat. Hello new head...I think some of the coolant is getting by the cap in some of these cars. It's unclear if it's the cap seal or the reservoir causing the issue. Mine had the thermostat fixed and it still goes down slowly. I smell coolant near the reservoir on occasion. I also sometimes see coolant crustiness in the channel next to the cap. It's not overheating...
This is exactly what I did. I didn't even have to explain to my dealer that I saw the trail of dried coolant down to the oil pan, they saw the photos, mileages, and dates and basically said "we've seen this before, we got you" and took care of everything (parts changed out listed here: Project Red XIII: avenali312's OEM+ GTI - Post #93).If you have just topped it off I would take a picture and document date. Drive the car and when it is low again, then go to the dealer. Explain to them the situation, show them the picture, but don't top it off before you go. Note mileage you topped it off at as well.
Excellent! Glad to hear that some dealers step up. I keep hearing more and more of dealers shafting owners for no reason.This is exactly what I did. I didn't even have to explain to my dealer that I saw the trail of dried coolant down to the oil pan, they saw the photos, mileages, and dates and basically said "we've seen this before, we got you" and took care of everything (parts changed out listed here: Project Red XIII: avenali312's OEM+ GTI - Post #93).
You should have left the first one alone maybe. They don't suddenly fail catastrophically as far as I know, so probably don't warrant preventative replacement like a cam belt or something.My stock water pump somehow lasted 95k miles. Got it replaced as a precaution (figure it was past due) and sure enough it was seeping coolant ever so slightly on the under side. Now at 105k miles, that new pump sprung a leak so I had to get it replaced again (under the 1 year parts warranty) a few days ago.
Here's hoping the third pump's the charm lol. Seriously mind boggling that VW still can't make a water pump right after all these years and failures.