Temp Gauge Oddities

I've been getting some strange behavior from the temp gauge on my '90 535i. A couple of times now, while stopped at a light, I have noticed that the temp gauge has dropped from its normal position at the halfway mark almost all the way down to the 1/4 mark. As soon as I take off from the light, or even with just a good blip of the throttle, the needle rises right back up to its normal position, and stays there. I can't manage to force it to do this. It's just happened seemingly randomly a couple times in the past week.

Any ideas?

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Originally Posted by hdaemon

I've been getting some strange behavior from the temp gauge on my '90 535i. A couple of times now, while stopped at a light, I have noticed that the temp gauge has dropped from its normal position at the halfway mark almost all the way down to the 1/4 mark. As soon as I take off from the light, or even with just a good blip of the throttle, the needle rises right back up to its normal position, and stays there. I can't manage to force it to do this. It's just happened seemingly randomly a couple times in the past week.

Any ideas?

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disconnect the relay and clean it out. I had the same prob, hope this helps

this will clean the contacts...worked for me last time

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Originally Posted by Paul in NZ

this will clean the contacts...worked for me last time

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Thanks for the advice. I'll clean the contacts up and see if it helps.