Thermostat OEM Audi or OEM Volkswagen

PartReview Score

Rank #7 in ranking

4.0

Overheating

4.1

No data

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #1 in ranking

3.6

Cabin heat

2.6

Overheating

3.0

Slow warm-up

1.9

No data

Reviews

All

OEM Audi

OEM Volkswagen

OEM Audi › Thermostat

_pbentley 16 Dec 2025, 20:44

Rating 4.0

I have an 06 Audi A3 2.0T Sportback with just over 105k miles; recently replaced the thermostat, spark plugs and coil packs. Other than being in need of some new brakes and a bit of cosmetic love, she's running strong.

Pros: running strong

Cons: needs new brakes

Vehicle: Audi A3

Mileage: 168981 km

OEM Volkswagen › Thermostat

TT99C5 3 Nov 2025, 22:20

Overheating:

Rating 4.0

I had a bad thermostat and it's only indication was the temp rising when going up hills under sustained load.

Pros: temp rising under load

Cons: temp rising

Vehicle: Volkswagen Passat

Mileage: 210000 km

OEM Volkswagen › Thermostat

T00m98 3 Nov 2025, 11:25

Overheating:

Rating 4.0

I had this year ago, thermostat was stuck closed, so coolant couldnt go to big circle and into cooler, it went up after 10 minutes of highway driving up to 115° (obd temps) on dash it wasnt that much

Pros: coolant couldn't go cooler

Cons: thermostat stuck closed

OEM Volkswagen › Thermostat

Weird_Elevator_3043 13 Oct 2025, 10:55

Overheating:

Rating 4.5

I used the genuine part as there is no desire to redo it again too soon.

Pros: reliable, long-lasting

Vehicle: Volkswagen Jetta

OEM Volkswagen › Thermostat

Kuriti 1 Sep 2025, 21:08

Overheating:

Rating 5.0

It has been two weeks since the repair without issues, so I am going to call this one solved. If I was paying for this out of pocket in the future, I would only replace the thermostat and not the pump as that is what was closing and causing the issue.

Pros: repair without issues

Vehicle: Volkswagen

OEM Volkswagen › Thermostat

Farve N Nugen 28 Jan 2025, 00:28

Slow warm-up:

Rating 4.0

I did the timing belt water pump thing on my MK4 last year, and shortly after the test drive with fresh genuine VW antifreeze and while patting myself on the back for a job well done it occurred to me that I hadn't changed the thermostat. Sure enough a month or so ago when the first of the really cold whether started around here the temp gauge would only get to about halfway to normal during a trip to town and back. I tried the ol' cardboard in the grill routine for a couple of days until I got a chance to change the thermostat and that brought things back to normal.

Pros: brought things back normal

Cons: temp gauge halfway

Vehicle: Volkswagen

OEM Audi › Thermostat

First-Taro-8760 26 Dec 2025, 08:40

Overheating:

Rating 3.0

Recently had the exact same issue on a 14 a6 ended up being a DOA t stat I compared the shaft length on the new t start to the 2nd new t stay and sure enough it protruded out about a mm further just enough to not seal properly causing the over cooling after the swap no more issues.

Pros: no more issues

Cons: over cooling

Vehicle: Audi A6

OEM Audi › Thermostat

Longjumping-Dare9429 15 Dec 2025, 00:24

Overheating:

Rating 3.0

Had this happen to our 2018 Q5 a few months back, 35k miles on the SUV. Thermostat issue plus some other stuff.

Vehicle: Audi Q5

Mileage: 56327 km

OEM Volkswagen › Thermostat

Phaeton4me 23 Mar 2025, 17:52

Slow warm-up:
Overheating:

Rating 1.0

Original was stuck open, replaced with new VW which now appears to be stuck closed. ????. Fortunately I have recently acquired a new OE thermostat on clearance for jollies.

Cons: stuck open, stuck closed

Vehicle: Volkswagen Phaeton

OEM Volkswagen › Thermostat

123-for-me 1 Jul 2024, 22:45

Slow warm-up:
Cabin heat:

Rating 1.0

After getting mine back together, and filling it back up with coolant, i found the new thermostat from the dealership was stuck wide open and the car wouldn’t get over 110*F.

Cons: stuck wide open, car wouldn't heat

Vehicle: Volkswagen Passat

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Which thermostat to choose — OEM Audi or OEM Volkswagen?

If choosing thermostat across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare thermostat across these categories:

Comparison of thermostat OEM Audi and OEM Volkswagen

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which thermostat are better — OEM Volkswagen or OEM Audi?

In March 2026 on PartReview, thermostat OEM Volkswagen were overall better than OEM Audi.

OEM Audi received a PR Score of 75 out of 100, and OEM Volkswagen scored 73 points.
OEM Audi ranked 7 in the overall ranking, and OEM Volkswagen ranked 1.
The average rating is higher for OEM Audi (4) than for OEM Volkswagen (3.6).
Thermostat OEM Audi have better feature ratings than OEM Volkswagen:
- Overheating - owners believe, that this property for OEM Audi is better than OEM Volkswagen.
- Slow warm-up - drivers claim, that this property for OEM Volkswagen is outperforms OEM Audi.
- Cabin heat - reviews suggest, that this property for OEM Volkswagen is preferred to OEM Audi.

Which thermostat are more popular — OEM Audi or OEM Volkswagen?

In March 2026 on PartReview, thermostat OEM Volkswagen were overall more popular than OEM Audi.

By vote balance, thermostat OEM Volkswagen surpassed OEM Audi:

For OEM Audi, the ratio of positive (27) to negative (9) votes is 18 votes.
For OEM Volkswagen, the ratio of positive (56) to negative (20) votes is 36 votes.

By number of reviews, thermostat OEM Volkswagen surpassed OEM Audi:

For thermostat OEM Audi there are 11 reviews: 7 positive, 3 neutral, 1 negative.
For thermostat OEM Volkswagen there are 24 reviews: 16 positive, 4 neutral, 4 negative.

Which thermostat do car owners prefer — OEM Audi or OEM Volkswagen?

In March 2026, according to PartReview, thermostat OEM Audi and OEM Volkswagen have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.

Other comparisons of thermostat

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of thermostat OEM Audi with: MotoRad, Wahler, Mahle, OEM Mazda, MOPAR, MISHIMOTO, Gates, OEM BMW, OEM Nissan, OEM Honda.

Also available: comparisons of thermostat OEM Volkswagen with: MotoRad, Wahler, Mahle, OEM Mazda, MOPAR, MISHIMOTO, Gates, OEM BMW, OEM Nissan, Duralast.

You can also see who is better among other thermostat manufacturers: Wahler or MotoRad, OEM Volkswagen or MotoRad, Mahle or MotoRad, OEM Mazda or MotoRad, MOPAR or MotoRad.