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Originally Posted by Orkrist
OK, I get in my car and lower the front windows, get back to the office and try to raise them and they won't do anything. Everything else works, like sunroof, lights, etc. I did a search and tried the dome light test and it doesn't dim, so there is no power getting to the switch. I really don't want to remove the instrument cluster. Are there fuses anywhere other than behind there? I don't see any under the hood. I'm not a very good mechanic, by the way. Any thoughts? Also, rear windows do not work either. They are stuck up, front windows are stuck down. Its a 1984 300D.
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before you tear into the dash to get at the relay, check the switches, assuming the motor never turns one way but turns the other way the switch is probably just dirty.
Unfortunately the left and right window switches on the console are different and can't be swapped for troubleshooting.
Removing a switch makes it easy to clean. First be careful not to loose the parts by doing this on a clean workarea. Pull the top rocker off by prying each side retaining arms with a thin screwdriver or pocketknife to free it. As it comes off, carefully note that there are two tiny springs that fit into plastic channels and press a bb against the bottom where the pins come thru to make contact momentarily when the rocker is pressed one way or the other. If you spill any drinks into the switch the residue settl;es to the bottom where electrical contact is made thus no current will flow. Many times dabbing a little windex or hot water in there will dissolve the gunk and make the switch work again. BTW this doesn't appy to earlier models with the sealed switches that have chrome faces on them.
If it still doesn't work then you got more work ahead of you.