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Old 09-16-2009, 08:45 AM
Freakin' benz nut
 
Join Date: Oct 2005
Location: vermont
Posts: 53
w124 window mystery solved

In case this happens to anyone else, here is what I found out about my w124 window problem. - the problem was, the relays were clicking but nothing was moving. all motors were good and all wires were good.

I traced the problem to the fuse box. I had tried rolling the fuses, and got nothing. So, I took the cover off the fuse box, and looked under the fuse block.
Underneath, I noticed a red and yellow wire that plugs into a single pin connector underneath, between F and G. Several circuits are fed by this wire, and I noticed that both window banks had plug type connectors instead of screws. I took these off, cleaned them, and now suddenly everything works perfectly. For me the lesson seems to be that not only to those fuses get a bit of oxidation, but the pin-connections can suffer from this also.

I hope this is helpful to someone who's trying to troubleshoot this stuff.

Does anyone know what the two red fuses inside the relay compartment are for?

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Old 09-16-2009, 12:15 PM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
The red fuses are likely for the aux fans.....I'm pretty sure.

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