I requested they use only Motorcraft thermostat, because I knew there was a part # update. Threw the updated Motorcraft one in and it solved the issue.
Pros: solved issue, updated part
Vehicle:
Ford
Owner reviews for thermostat
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The new updated thermostat is plastic and glides much better. Had to do it to my used 2019 as soon as I bought it.
Pros: plastic, glides better
Vehicle:
Ford
Soon as i bought Motorcraft all was normal again
Pros: all was normal
Vehicle:
Ford
I threw in the oem thermostat and the car is running perfectly at operating temp
Pros: running perfectly, consistent temperature
Vehicle:
Chevrolet Tahoe
Spend slightly extra and get a quality OEM Wahler thermostat.
Pros: high quality OEM
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
I’ve been using Germany-made Mahle thermostat for years. Now it throws a code that the heater doesn’t work (so it won’t open electrically, but mechanically it is working just fine), but no leaks.
Pros: mechanically working, no leaks
Cons: throws heater code
Vehicle:
BMW
Took my car to Hyundai for check engine light around 37k and they said it’s the thermostat and they fixed it. now around a year later 48k check engine light comes back on and it’s the same thing issue they saying I need a new thermostat.
Cons: failed quickly, recurrent issue
Vehicle:
Hyundai
Mileage: 48000 km
Last week changed the thermostat on my 1.9 tdi 66kW to a Mahle TX 15 87D (11€), it was fine for the first two days, then the temps started dropping again.
Pros: fine for first two days
Cons: temps dropping again
Part number: TX 15 87D
1st Mahle. The engine only reaches up to 65 degrees and it drops further if I drive under 2000RPMs on highway for example or turn on the heating.
Cons: engine underheats, temperature drops
Vehicle:
BMW
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