Thermostat OEM Audi or MISHIMOTO

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 #14 in ranking

-18

2.2

Overheating

2.7

Slow warm-up

2.8

No data

Reviews

All

OEM Audi

MISHIMOTO

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

MISHIMOTO › Thermostat

mooseman923 9 Aug 2025, 02:17

Overheating:

Rating 5.0

It’s now got an 85°c Mishimoto thermostat. Took it out today and got it up to temp and did multiple 0-85mph pulls. The new thermostat opens at 85°C/185°F. Under load the coolant never registered above 197°F!!!!

Pros: coolant stable, low temperature

Vehicle: Volvo XC70

MISHIMOTO › Thermostat

Next-Background-5812 17 Jul 2025, 20:17

Slow warm-up:
Overheating:

Rating 5.0

Mishimoto has a great thermostat plus it has a lifetime warranty

Pros: great thermostat, lifetime warranty

OEM Audi › Thermostat

_TheWrongAlice_ 21 Oct 2023, 19:26

Overheating:

Rating 5.0

Not the water pump but I just had my thermostat replaced under the extended warranty. I was slowly losing coolant with no discernable leak.

Pros: fully covered, extended warranty

Cons: slowly losing coolant

OEM Audi › Thermostat

MrThe1Badman 22 Aug 2023, 15:25

Overheating:

Rating 5.0

I just got this done and Audi quoted me $2500 for just the thermostat. Mine was covered by the extended warranty Audi has on all water pumps leaks.

Pros: covered by warranty

Cons: expensive repair

Vehicle: Audi A3

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

MISHIMOTO › Thermostat

Ben_805 16 Dec 2025, 23:22

Overheating:

Rating 3.0

I spent a good chunk of change on the Mishimoto thermostat and it got stuck closed within a couple months. Needed the car back right away and all I could get was a dirt cheap MotorRad one. Darn thing has been it in now without issue for a good long while now.

Pros: working without issue

Cons: stuck closed quickly

MISHIMOTO › Thermostat

king1fluffy 24 May 2025, 20:21

Overheating:

Rating 0.5

Get that mishimoto garbage out of there and put a new oem thermostat in there. Unless you really lile pulling the engine out, to replace coolant seals and rusted rotors...

Cons: poor quality, causes damage

MISHIMOTO › Thermostat

RyanGout 24 May 2025, 16:44

Overheating:

Rating 1.0

please remove the mishimoto thermostat they fail a lot, it happened to me as well.

Cons: frequent failures

MISHIMOTO › Thermostat

Winter_Property4986 31 Mar 2025, 07:28

Overheating:

Rating 1.0

Même souci sur 350Z

Le thermostat Mishimoto s'ouvre à 82° au lieu de 68°/ la réponse du constructeur → du moment ou la température reste stable !!!!!!!!!

Je suis énormément déçu de cette réponse surtout au prix et frais de douanes que cela comporte.

Cons: s'ouvre à mauvaise température, déçu de la réponse, frais de douanes

Vehicle: Nissan

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Which thermostat to choose — OEM Audi or MISHIMOTO?

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 MISHIMOTO

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

Which thermostat are better — MISHIMOTO or OEM Audi?

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

OEM Audi received a PR Score of 75 out of 100, and MISHIMOTO scored 32 points.
OEM Audi ranked 7 in the overall ranking, and MISHIMOTO ranked 14.
The average rating is higher for OEM Audi (4) than for MISHIMOTO (2.2).
Thermostat OEM Audi have better feature ratings than MISHIMOTO:
- Overheating - owners believe, that this property for OEM Audi is better than MISHIMOTO.
- Slow warm-up - drivers claim, that this property for MISHIMOTO is outperforms OEM Audi.

Which thermostat are more popular — OEM Audi or MISHIMOTO?

Thermostat OEM Audi and MISHIMOTO were equally popular according to data in March 2026.

By vote balance, thermostat OEM Audi surpassed MISHIMOTO:

For OEM Audi, the ratio of positive (27) to negative (9) votes is 18 votes.
For MISHIMOTO, the ratio of positive (16) to negative (34) votes is -18 votes.

By number of reviews, thermostat MISHIMOTO surpassed OEM Audi:

For thermostat OEM Audi there are 11 reviews: 7 positive, 3 neutral, 1 negative.
For thermostat MISHIMOTO there are 16 reviews: 4 positive, 2 neutral, 10 negative.

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

In March 2026, according to PartReview, thermostat OEM Audi and MISHIMOTO 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, OEM Volkswagen, Mahle, OEM Mazda, MOPAR, Gates, OEM BMW, OEM Nissan, OEM Honda.

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