Volkswagen Polo red expansion bottle light on
Model Year: 2002
light comes on even if not running changed bottle
Posted: Aug 31, 2014 (10 years ago)
If not overheating or losing water , faulty sensor .
Posted Sep 1, 2014 (10 years ago)
You could try bridging the sensor wiring at the connector ,which would tell you if it,s wiring or sensor fault ;-)
Posted Sep 1, 2014 (10 years ago)
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