vs
Thermostat MISHIMOTO or OEM Mazda
I had the same issue, in the end, the thermostat was faulty, and the dealership replaced it for free. I didn’t have any warning light on the dashboard either.
Pros: replaced for free
Cons: thermostat was faulty
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
I had the same issue on my 09 Mazda 2.3L. Everything looked good on the dash, but the thermostat let too much coolant through, over cooling the engine. My CEL came on, I reset it, and it reappeared. Long drives on the freeway in cool weather was the scenario that triggered it, as the radiator is very effective at speed, and the engine isn't working hard cruising on level ground at freeway speeds. I bought the thermostat "cover" (it's the plastic assembly with the thermostat integrated in it-- PN LF70-15-170) for $57 from Amazon and installed it last November and the CEL has not reappeared.
Pros: CEL disappeared, engine cooling fixed
Part number: LF70-15-170
Mishimoto has a great thermostat plus it has a lifetime warranty
Pros: great thermostat, lifetime warranty
Common for the thermostat and/or coolant control valve to fail on newer Mazda 3s. It's not a big deal but you might have more coolant loss and it takes longer to warm up.
Pros: not a big deal
Cons: coolant loss, longer warm
Vehicle:
Mazda 3
I wanted to upgrade from plastic and got an aluminum Mishimoto thermostat, but i didn’t notice that it opens at 180°. Can i get away with the 180° thermostat, or should i ship it back and re-order a different, higher rated thermostat?
Pros: aluminum, upgrade from plastic
Cons: wrong opening temperature
Vehicle:
Jeep Wrangler
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
please remove the mishimoto thermostat they fail a lot, it happened to me as well.
Cons: frequent failures
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
Our 2022 CX-5 Premium Plus (non turbo) is going in for its 3rd thermostat replacement next week. Each time it’s been replaced at Mazda under warranty with an OEM part. Vehicle will hit 90,000 Miles this month. Does this thermostat wear seem excessive or is it normal for these? Bought brand new and it’s been the only problem, other then general maintenance
Cons: repeated failures, excessive wear
Vehicle:
Mazda
Mileage: 144841 km
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