Q:BMW E30 318Is

on dashboard temperature indicator somethimes start's to go left-right and after few second's stop's and somethimes dont show any temp or show's max
temp what is wrong?
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Bad connection to the temp sensor on the engine?
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Email: snipped-for-privacy@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland
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Pull the cluster, tighten the nut on the back of the gauge (free, 1 hour if you don' t know what you're doing).
Also possibly replace the coolant temp sensor (cheap, 5 minutes).
Finally bleed the coolant system. (Free, not difficult)
-Russ.
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THANX i will try it

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