Thermostat Wahler or OEM Volkswagen

PartReview Score

Rank #13 in ranking

-3

2.9

Cabin heat

1.8

Overheating

2.8

Slow warm-up

2.1

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

Wahler

OEM Volkswagen

Wahler › Thermostat

BMWMikeM 21 Dec 2025, 19:59

Rating 5.0

In the past and up to several months ago, I’ve always gone with Saleri (Italy) pumps and Wahler (Germany) thermostats for the M54 and have had great results.

Pros: great results

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

Wahler › Thermostat

mrkprsn 3 Nov 2025, 15:07

Overheating:

Rating 4.5

I had a wahler thermostat and my temp range was 93-96

Pros: stable temperature range

Vehicle: BMW

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

XDleader555 10 Apr 2023, 04:46

Overheating:

Rating 3.0

Sounds like your water pump is working, but maybe your thermostat is stuck closed? Have you tested the thermostat?

Pros: water pump working

Cons: thermostat stuck closed

Vehicle: Volkswagen Golf

Wahler › Thermostat

TheOnlyQueso 11 Dec 2025, 02:55

Rating 2.0

I recently changed the thermostat on my dad's car as well, I went with a wahler, and I'm observing the same things.

Cons: observing the same things

Wahler › Thermostat

jimjoe21 3 Nov 2025, 05:59

Slow warm-up:
Cabin heat:

Rating 0.5

I decided to try another thermostat, this time a Wahler and nothing has changed as the car will still not get up to temperature and no hot air.

Cons: car not reaching temperature, no hot air

Vehicle: BMW

Wahler › Thermostat

Fiendingas 4 Jun 2025, 06:01

Rating 0.5

I changed on mine 2-3 months ago with a new one from Wahler/Borg Warner and now it's leaking through the connector.

Cons: leaking through connector

Wahler › Thermostat

Fiendingas 28 May 2025, 19:41

Rating 1.5

I have experienced same with Wahler thermostat.

Cons: same problem experienced

Vehicle: BMW

1 2 3 4 5 6

Write your review

Help others - share your experience with this part.

Part:

Manufacturer:

Make:

Model:

Generation:

Review tone

Positive Negative Neutral

Reviews found: 0

Voted AGAINST engine oil RAVENOL on the rating page

The brake pads Motorcraft has only 4 reviews. Maybe add one more?

The brake fluid OEM Subaru has only 2 reviews. Maybe add one more?

The brake pads Detroit Axle has only 8 reviews. Maybe add one more?

The brake pads OEM Alfa Romeo got the first review!

The brake caliper OEM BMW got the first review!

The brake pads OEM Infiniti got the first review!

For wiper blades PIAA already 100 reviews.

For battery Energizer already 25 reviews.

In the rating best water pump already 12 brands participate!

In the rating best timing belt already 13 brands participate!

In the rating best head gasket already 3 brands participate!

In the auto rating oil filter for Volkswagen Passat already 5 brands participate!

In the auto rating brake pads for Mazda 5 already 10 brands participate!

In the auto rating tires for Subaru Outback already 50 brands participate!

The glow plug Autolite has only 10 votes! Recommend it?

The fender OEM Volkswagen has only 10 votes! Recommend it?

The brake discs Tesla has only 10 votes! Recommend it?

For cabin filter Fram already 25 reviews.

In the rating best flywheel only 4 brands. Do you know another one?

The brake pads OEM Subaru already has 250 votes!

The engine oil AMSOIL already has 1000 votes!

In the rating best CVT transmission only 4 brands. Do you know another one?

The engine radiator MISHIMOTO already has 300 votes!

Voted AGAINST engine oil RED LINE on the rating page

Voted AGAINST engine oil PENNZOIL on the rating page

Other comparisons

Thermostat Wahler or MotoRad

Thermostat OEM Volkswagen or MotoRad

Thermostat Mahle or MotoRad

Thermostat OEM Mazda or MotoRad

Thermostat MOPAR or MotoRad

Thermostat MISHIMOTO or MotoRad

Thermostat Gates or MotoRad

Thermostat OEM BMW or MotoRad

Show all

Which thermostat to choose — Wahler 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 Wahler 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 Wahler?

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

Wahler received a PR Score of 48 out of 100, and OEM Volkswagen scored 73 points.
Wahler ranked 13 in the overall ranking, and OEM Volkswagen ranked 1.
The average rating is higher for OEM Volkswagen (3.6) than for Wahler (2.9).
Thermostat OEM Volkswagen have better feature ratings than Wahler:
- Slow warm-up - owners believe, that this property for Wahler is better than OEM Volkswagen.
- Cabin heat - drivers claim, that this property for OEM Volkswagen is outperforms Wahler.
- Overheating - reviews suggest, that this property for OEM Volkswagen is preferred to Wahler.

Which thermostat are more popular — Wahler or OEM Volkswagen?

Thermostat Wahler and OEM Volkswagen were equally popular according to data in March 2026.

By vote balance, thermostat OEM Volkswagen surpassed Wahler:

For Wahler, the ratio of positive (41) to negative (44) votes is -3 votes.
For OEM Volkswagen, the ratio of positive (56) to negative (20) votes is 36 votes.

By number of reviews, thermostat Wahler surpassed OEM Volkswagen:

For thermostat Wahler there are 28 reviews: 13 positive, 1 neutral, 14 negative.
For thermostat OEM Volkswagen there are 24 reviews: 16 positive, 4 neutral, 4 negative.

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

In March 2026, according to PartReview, thermostat Wahler 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 Wahler with: MotoRad, Mahle, OEM Mazda, MOPAR, MISHIMOTO, Gates, OEM BMW, OEM Nissan, OEM Audi, Duralast.

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