Hi,
bmw z3 1.9 air condition electric fan 1998
recently noted that my temp guage is a bit erratic and goes from middle of guage when in traffic, to cold when moving along and going down hill , and back up to the middle when under heavy load i.e. going uphill...
I beginning to suspect thermostat... looks like mine is plastic housing. and theres no viscous fan so easy to change would the above symptoms suggest a dodgy thermostat... ?
thanks
thermostat m44 engine removal / symptoms
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- Joined: Sat 18 Jun, 2016 10:35
- Posts: 296
- Location: Blaenau Gwent South Wales...
Re: thermostat m44 engine removal / symptoms
Yep - the moving into the cold zone when the engine is not under load and you are travelling at a reasonable speed - is typical. Several things can cause an engine to overheat but for it to overly cool is typically the thermostat.