audimonster100

I've replaced the wiring harnesses, all the bulbs work. Its the headlight/taillight warning light and it comes on intermittently when I am going down the road or even parked. It does it in summer and winter. I thought it might be corrosion on the bulb connector checked all those and nope nothing. I was wondering if this was common, and whether or not I should replace the unit in the gauge cluster or start tracing wires.


Thanks for the help,

Biscuit141

warning would come on intermittently for that. I would pull the bulbs (tails are really easy) and see if one looks bad.

DaveInSaltLake

activates the warning light if the difference between bulb resistances isn't within a certain spec. I would replace both bulbs with new ones of the *proper* spec and see if that solves your problem.

Hint: most people are probably running the wrong bulbs. see the following thread.<ul><li><a href="https://forums.audiworld.com/a6100/msgs/80550.phtml">Bulb Thread</a></li></ul>

Audi Logic

also check the terminals for corrosion, that would also cause this issue

audimonster100

Thanks guys, i'll give it a try and see where we stand.