Question about 1995 Mercedes-Benz SL-Class

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I have a 1995 SL320.I rolled the left drivers window down 1st.I then started rolling down the passenger window and it rolled half way down then stopped. Convertible top will not release.Windows will not roll up. What do you suggest. Thanks Jack D. Antrobus, jdantrobus@hotmail.com

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  • jdantrobus Jul 13, 2010

    I will accept and investigate this solution. Thanks Jack

  • jdantrobus Jul 13, 2010

    I will accept and investigate this solution. Thanks Jack

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Windows not rolling.This is sometimes due to windows getting blocked by any object or dust.check out the window area first for any blockage to the window glass.But if there is no blockage then ,
If the windows don't work, any of several issues is likely to blame, including no electricity, bad switches, bad motor, damaged window regulator, or even a broken wire.
Automotive power windows use a switched motor to operate a mechanical window regulator. This regulator moves the pane of glass into the door.
To check and confirm the fault try this procedure:--
1) Open the fuse panel and check the fuses for disrupted elements. The fuse panel at the driver's side kick panel, or between the dashboard and the door. In some cars the fuses are mounted in the engine compartment, in front of the driver's side firewall. Check the fuses and replace if faulty.
2)
Test the wiring harnesses from the fuse panel to the switches and from the switches to the window regulator motor. If the circuits test fine, then proceed to the next step. If a wiring harness is shorted or damaged, it will need to be replaced.3) Remove and test the switches on the driver's side door panel. Pry them up with a screwdriver and pull them free of the panel's opening. Disconnect the switch assembly from the wiring harness by pulling the adapter plug from the assembly. Test the switches individually by touching both sides of one switch with the circuit tester. Each switch will have two terminals, and if the tester is positive on both terminals while the window is activated, then the switch is good. Replace the switch assembly if any of the switches fails the test. Most power window switches come in assembled modules and cannot be replaced individually.4) Remove and test (if possible) the power window motor. Turn the armrest bolts and interior door handle screws counterclockwise, then pull the door panel free from the pop rivets. Behind the panel are a window regulator, the window glass, and the electric driver motor. The motor is usually located in the lower right section of the door. Unplug the motor from the wiring harness and unbolt it from the window regulator by turning the bolts counterclockwise. Pull the motor straight out, away from the gears. And check out if motor is receiving exact 12 volts at the terminals. If not then either motor is faulty or there is a confirm short if motor is replaced.
5) If all the above mentioned possibilities are checked out ok then the window regulator needs to be checked. Inspect the window regulator's joints for rust or stiff movement, if the electrical system is operating correctly. These joints can corrode or break, causing the window to stop working. With the door panel off, the window regulator can be removed and replaced by sliding the glass away from the track mounts, then turning all mount bolts counterclockwise and manipulating the regulator out of the door.
And for convertible top not getting released.Check the switch first.Is it showing ant voltage power.If it is then check for the oil in the hydraulics of the roof.If there is oil then it might be problem with cylinders.Any of the cylinders for the hydraulics of the roof have failed.Fill the oil reservoir and check first by pressing the button of convertible top.In some cases the window function switch connections on driver side stops the top to work.
So get the window problem solved.



Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Posted on Jul 12, 2010

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