The temperature gauge is also slow at going up when the engine is cold ....
99.9% sure it's the thermostat. Only way to test is to take it out. Might as well replace it if you've gone as far as that.
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cannot see it being anything else,thermostat is stuck open.
If you have the K series,its a fiddly job and not worth testing (though thats up to you)by the time you take it off,you will be glad to get new one on and finnish the job
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Steve
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I had a similar problem recently on my 1999 214.
The temp gauge needle hardly moved, even after a 12 mile run, it was ticking over at 1100 rpm, low miles per gallon and the heater was hardly getting warm, I had the thermostat changed and it solved that problem only to highlight another problem.
Now that the engine was running at normal temperature, after 4 or 5 miles when the engine was warm, when the clutch was depressed to change down for a junction, the engine raced to 3500 rpm. The plastic throttle body deformed with heat & the butterfly valve stuck open, changed the throttle body & the problem seems to have been solved.
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It looks like I'll have to have a go at changing the thermostat. It seems a lot of hard work though as when I drive round town everthing works fine. How much is a thermostat and does it come with the new O rings you need?
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About a tenner, should come in kit form, but if it's a K-Series, check if the housing is plastic or metal.
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It seems a lot of hard work though as when I drive round town everthing works fine.
In town you're not getting the same amount of airflow through the radiator as you would be when travelling at 60 mph down an A road. If the thermostat is stuck open then the coolant will soon cool down with increased airflow through the rad.
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Is it a different thermostat if the housing is plastic or is it the same as for the metal housing one.
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when asking for thermostat,state chassis no should be on bonnet slam panel left side of/or in left hand bottom corner of windscreen-passenger side/or log book.I dont think they are different but specify this and they will get it right
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Steve
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Has anyone got any tips on changing the thermostat to make it easier?
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