Volkswagen Passat Forum banner

low beam and high beam not working correctly

2005 Views 4 Replies 3 Participants Last post by  wambus
I have a 98 Passat. 277k.
Recently I replaced the factory headlights and corner lights with a set of aftermarket OEM style housings. they are not great, but are super clear compared to the clouded original ones (I kept the originals and may try to clean them off the car). The issue is that a few nights ago, I started noticing that the lights were not looking right. I determined that the low beams are on they are fine. But when I turn on the fog lights, the driver side low beam shuts off. At first it would come back on after a couple of seconds, but now it does not. When I turn on the high beams, the low and high beams do not work on the driver side. Help?

A sidebar to this is that I was pulled over one night for no tail lights. Once I got home I found out how to pull the main switch. I did this and unhooked it from the harness. I plugged it back in and for fun checked the tail lights. They were working.....

I apologize if there is a thread on this already, but I cannot find one so far and need to drive the car in the dark tomorrow and am concerned about the lights....
1 - 1 of 5 Posts
At a glance, the problem with the driver's headlight yells at me "faulty ground splice in the headlight!!!" Quick check (to determine if fault is in the light, or elsewhere in the car):
Because you still have the OE lights, plug that in, and see if it functions normally.

"Lights broken, but work after monkeying with the switch": That one tells me "switch is dying, and needs replaced." Yes, people will tell you "troubleshoot!!!!" But, generally, when playing with a mechanical switch causes normal operation to resume, the switch is the cause of the malfunction. And, after 20 years, and nearly 300,000 miles, it's not out of the question for the switch (any high-load mechanical switch, for that matter) to just start dying.
1 - 1 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.