[Biturbos4] Coolant sensor
quincy.chiang at globalte.com
Mon Jan 5 17:37:41 EST 2004
I got a CEL last friday night when it was -25 oC outside, it stayed on all Saturday but cleared itself yesterday. I figured I'd be safe and drop by the dealer at lunch today. I was expecting a MAF or a torn TBB, but it tuned out to be a coolant sensor, it's out of spec by up to 10 oC.
I did a quick search on the AW S4 archive, apparently this sensor is known to fail, quite frequently I might add. It can cause rich or lean conditions, cold start and idle problems, erractic coolant temp gauge and other issues. Also the original sensor (black) has been superceded by a newer version (green). I learn something new everyday, just thought I'd share my findings.
Btw, happy new year!!
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