Mechanics

FRONT LIGHTS

1999 BMW 523 • 2WD Manual • 160,000 miles

Front headlamps go dim when driving battery and alternator tested and are ok. When I put on full beam the back to normal they look like they are not on at all for 2 mins then back to normal. There is some sort of motor on drivers side wheel arch but dont no what that is for.
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Eddies
November 18, 2010.




The lamps are controlled by the general module, perhaps there is a fault there. The car might well need to be scanned for possible fault in that system, I recommend seeking out a shop that has the proprietary equipment to scan the car, generic scanning is not going to be conclusive.

Dr. Hagerty
Nov 20, 2010.


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