lights flicker when car is cold ?

[2002Lew]

My 02 WS6 has a problem with the head lights and dash lights flickering when the car is cold ? Once it worms up the problem going away ? Anyone know what the problem could be . I just don't understand why it would only do it when it's cold

Thanks Lew

[2001NBMZ28]

Might just be the air pump cycling, mine has done it from day one. Only notice it at night when the lights are on.

[OhTwo]

Agree with 2001NBMZ28. I had the same issue until I removed the entire AIR system. It's never flickered since.

[Alex41]

Its shivering trying to warm up.



Sorry, had to do it. I have never owned my car with the air pump system on it so I don't have the problem. That's probably what it is.

[Bluebird5.0]

My lights flickered for about a year before I found out it was the alternator. The voltage regulator inside of it apparently can't be tested and after rebuilding the original, rewiring, and lots of research, a new (remanufactured) alternator solved the problem for me.

[Kevano26]

Originally Posted by Bluebird5.0

My lights flickered for about a year before I found out it was the alternator. The voltage regulator inside of it apparently can't be tested and after rebuilding the original, rewiring, and lots of research, a new (remanufactured) alternator solved the problem for me.

thats what happened with me. my lights and dash were flickeringing pretty bad at night for about 6 months. so i got a rebuilt alternator and it fixed the problem.