roni024
Veteran Member
I'm having an issue on my recently acquired 2013 Passat. The overhead lights including the visor mirror lights do not work. I tried tracing out which fuse may be affecting the issue, but could not find continuity between the red/blue wire of the visor light and any fuse terminal at the dash or under the hood. Then, I dug deep online and found out it is likely caused by an underlying sunroof drain leak.
I'm thinking possible culprits at this point are a corroded connection (I saw one user post that the red/blue wires all tie together at a point common for a drain leak to affect), or a faulty CCM.
I tried to snake the drain clean with a .095 trimmer string and also a 5/32" (or so) vinyl wrapped steel cable. Both meet resistance near the bottom of the A pillars on either side of the vehicle. There are some hints online about where the problematic duckbills are located, but I couldn't find them at a quick glance.
Can someone tell me in detail where I should be looking for the drain ends for both the front and rear sunroof drains?
I'm planning on removing the A pillar covers to see what's going on behind them, and there are pretty good instructions on here to do that. I may also decide to pull the headliner to make sure those connections are good, but there is very little instruction on how to do that.
Can anyone explain the best way to remove the headliner? I have not had very much luck with removing interior panels in the past, and am worried about breaking clips off.
I'm thinking possible culprits at this point are a corroded connection (I saw one user post that the red/blue wires all tie together at a point common for a drain leak to affect), or a faulty CCM.
I tried to snake the drain clean with a .095 trimmer string and also a 5/32" (or so) vinyl wrapped steel cable. Both meet resistance near the bottom of the A pillars on either side of the vehicle. There are some hints online about where the problematic duckbills are located, but I couldn't find them at a quick glance.
Can someone tell me in detail where I should be looking for the drain ends for both the front and rear sunroof drains?
I'm planning on removing the A pillar covers to see what's going on behind them, and there are pretty good instructions on here to do that. I may also decide to pull the headliner to make sure those connections are good, but there is very little instruction on how to do that.
Can anyone explain the best way to remove the headliner? I have not had very much luck with removing interior panels in the past, and am worried about breaking clips off.