While I am waiting to get into the engine this weekend, I am trying to troubleshoot the other minor problems in my 89 300E. Got the car Friday. Passenger side window worked only. Replaced fuse (someone had installed an 8 - requires 25) for Driver F and Pass. Rear - Got Driver only. Yes, I checked to make sure the child lock was off. Could it be that the child lock is faulty or more likely that both back motors are out? Any other usual problems I should check on this model? Kids? Neither makes noise like it's even trying to go when the button is pushed.
Thanks for any help...

Infamous for breaking (Constant flexing,causes "Stress Fracture").

Also...Both Rear window switches must be good (The ones in the console AND
the ones in the rear doors.)

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'84 300SD sold
124.128

Thanks. I think I'll leave it for now. I don't let the kids use the rear windows anyway. I'll check it out after I take care of the tick