Power window and sunroof problem fix.

[dkw_dude]

3b..

Same problem here, windows + sunroof dead but on a 3B. Found this thread, thank you Forum

The double size relay (or control unit) had a different p.n. looked like in the pic. Clearly visible was a bad soldering due to heat cycling, or so it looks to me. Repaired with a piece of wire as reinforcement, repaired a few other bad solderings and it's all good again (fingers crossed)

[madpugger]

Ok, I ordered the fuse to replace mine, but I'm having an issue, I don't see a 20A one. It's a late ABY Avant. I only see a 32V 60A one in the rough location of where the 20A one is pictured earlier in this thread.

ImageUploadedByTapatalk1334225114.366007.jpg

ImageUploadedByTapatalk1334225228.905845.jpg

Any ideas? Someone mentioned this previously about a LHD RS32 but I saw no answer other than Paul saying it should be there on all models?

[Jas11n]

The thermal fuses are the ones you've pictured in your second photo, up to the top right corner of the pic.

[madpugger]

I see them jas, but they are 12 and 30 amp...

[madpugger]

just for the avant owners ours is a different setup we have two fuses together its the top one you need mine is red but they have the same part numbers

Ahh seems I missed a post.

I am not sure if yours (Jas) is a 3B or if it's just that the Avant has a 30A because it has more windows, but I assume the Coupe or 3B doesn't have the two I have pictured?

[Jas11n]

Ahh seems I missed a post.

I am not sure if yours (Jas) is a 3B or if it's just that the Avant has a 30A because it has more windows, but I assume the Coupe or 3B doesn't have the two I have pictured?

Mine was (now sold) a 1995 ABY Coupe. Picture of what that spaghetti wiring mess from hell looked like on mine, is on page one of the thread somewhere.

Audi likes to throw these curve balls. Have you tried the relay? checked the tracks on the rear of the PCB for cracked solder joints?

[madpugger]

Yup I sure have, all looks lovely in there. The windows work most the time so diagnostics is hard!

I always thought there was supposed to be three thermal fuses, a 12, 20 and 30 (aside from that 32v 60A one)...

[yamahajet]

Thanks a lot! Saved my day A few minutes soldering, and now everything works just fine again.

1994 S2 Avant Aby

[nip]

BIG Thanks to jase,been bugging me for over a year or so, looked today and relay had dried joint same place as urs resoldered it works perfect!!!!!
cheers kid

[Avantus]

Also a thanks from here, soldered my print about half a year ago. Also had non working windows + sunroof from time to time

[rynaqui]

I had same problem, took it to my local auto-electrician (does a lot of work for the company) and fixed a couple of dry joints

[TimE-J]

Just thought I'd revive this thread,

Jumped in the coupe this morning after it had been stood up for about a month, found out the windows weren't working so used this thread and found 4 dry joints in the window relay circuit. All working now still to just sort the sunroof.

[pcfnet]

Thank you for the post that save me hassle from troubleshooting. Found the crack solder and fix it. Now it works without any problem at all!!

[mackenzie50]

Excellent- a very timely revival of this thread as I have exact same problem- cheers!

[rynaqui]

Yep, pretty much one of the first jobs I did when I got my coupe, still works fine to this day almost 6 years later!