Owner reviews for thermostat

325
Best manufacturers by properties
Slow warm-up

OEM Nissan

5.0
Cabin heat

MOPAR

5.0
Overheating

OEM Subaru

4.9
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MotoRad Thermostat
Ben_805
Rating 4.0
  • Overheating:

All I could get on short notice was a motorad...been in there over a year now and haven't had an issue. It's an OE 195 temp and seems to open around 205-210.

Pros: no issues, over a year
Vehicle: Jeep
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MISHIMOTO Thermostat
mooseman923
Rating 5.0
  • Overheating:

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
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MotoRad Thermostat

I found an exact copy of the factory thermostat with the baby one next to the primary the Amazon description says it’s good up to a 2000. It’s a Motorad. My temp never moves from the set point.

Pros: stable temperature, factory design
Vehicle: Mazda
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AISIN Thermostat
bikeswoodkayakdad
Rating 3.0
  • Overheating:
  • Cabin heat:

New thermostat (Aisin brand), fresh oil, fresh coolant, replaced at that time. Coolant system bled well. No leaks. Heat worked flawlessly. AC worked after the swap. Overheated the drive home after that swap, turns out the radiator fan module got fried on the final drive (it was above 250 on coolant temps before replacing the engine, on a 30 minute, fast, highway drive). Ordered a new one. Everything working perfect now at the right temperature points. Engine times reading perfect too (watching live data). On a 30 minute highway drive tonight, returning home after the same drive 2 days ago with zero issues, it overheats again. Radiator fans are working. The one thing I changed during the drive was turning down the heat from HIGH to 75. No more than 10 minutes later I hear the bubbling in the heater core area. Take my exit from the highway, and the red temp light starts flashing, temps read 239, and the bubbling worsened. Temps stayed above 228 until I made it home from my exit. Worse at red lights. Turned off for 10 minutes, turned back on, temps went up to 232 at idle, holding steady. Lower radiator hose read 102 degrees, upper hose reads 190.

Pros: heat worked flawlessly, AC worked
Cons: overheated, bubbling in heater core
Vehicle: Subaru Outback
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OEM BMW Thermostat
Mskaywood
Rating 1.0
  • Overheating:

I bought a 2022 X4 about a month ago from BMW. Had it for 2 weeks and got the same notification. Took it to BMW ( I got the warranty) and adjuster came in from the warranty people on Monday but haven’t approved the repair yet. They said it was also a thermostat. Seems like this is a common thing in these cars ? Mine is at 61k miles, bought it used and only had it for 2 MF weeks.

Cons: thermostat failure, common issue
Vehicle: BMW X4
Mileage: 61000 km
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MISHIMOTO Thermostat

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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