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Marty, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 54977
Experience:  Bosch Certified Master Technician with over 35 years experience in the automotive industry.
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The door windows (electric) do not work

Customer Question

The door windows (electric) do not work
Submitted: 2 years ago.
Category: Mercedes
Expert:  Marty replied 2 years ago.
Hi, first thing you need to do is replace all of the fuses in the fuse box. Poor connections are very common on the SL. There are 3 fuses for the windows. 2 are for the windows themselves and one powers the window relay. If all fuses are good you need to test for 12V to the window fuses with the key on. If you do not have 12V to the window fuses you will need to replace the power window relay. The relay is on the panel above the fuses. If you do have 12V to the fuses you will need to replace the window switches or possibly the window motors.Marty