What tempature is your m20 running at?

[e34_spangler]

My gauge is showing that the car only gets up to a quarter which seems pretty cold to me when most cars usally run at half? Is that bad good or just a gauge being stupid

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[ButtJuice]

It's your temperature gauge, it's not working properly. Check the nut on the back or swap in another one.

If that doesn't work, replace your thermostat.

[dnguyen1963]

Most likely, You have the wrong t-stat in your car.

[e34_spangler]

Well I got the t stat from bmw

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[SkiFree]

Well... BMW sells more than one temp. t-stat. Which temp. did you buy?

[offsetmotorwerks]

There are 71*, 75*, 80* (most common). I use a 71 and it runs at the first mark.

[e34_spangler]

Oh ok well they gave me what they told me I should put in.. didn't really think about there being different ones I just wanted the part being lazy but yeah runs at the first mark which is fine with me its not getting hot! But I wanted to make sure that's ok for the engine

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[dnguyen1963]

Living in PA is going to be tough in the winter time with your current t-stat. I would suggest that you replace it with a 80C stat. It will take longer to heat up the car with a 70C stat. Your car will not be efficient running that cold, but it will not cause any damage.

[e34_spangler]

Ok sounds good

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[jeffnhiscars]

It will take longer to heat up the car with a 70C stat.

Actually a 70 and 80 will warm up at exactly the same pace since the engine doesnt know or care what the set point is of a closed tstat. The 70 will just open a bit sooner.

The M20 should have an 80

[e34_spangler]

ok thanks for the info guys!