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In Reply to: temp. reading problem posted by Tallent on May 03, 2000 at 01:24:25:
: My temp. gauge points half of a quater higher than when I switch off the headlights & A/C ( w/ the engine runs ). The reading seems to be correct when I switch off the engine( key turns in half way ).
: It seems like to me that the electric supply is not enough or short. Which parts should I check for ?
Hi :-)
it can be anything following because i had the same problem on a former E21 323i (LHD) and i checked all the following things before i made sure it was the right answer to my problem (like checking at every step).
Could be :
* checking the whole electric wire attachment to the groung (car body) for bad welding or corrosion.
* checking the alternator for the right power output.
* replacing the coolant sending unit (cheap)
* checking with an additional gauge that you just connect to the sending unit with an electric wire(such as the gauges i have on my dash now)
or :
* replacing the original gauge on the dash (expensive) which i didn't have to do to solve my problem, but it is still a possibility.
I'll tell you more about it when i am in HK.
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