Mercedes-Benz Parts Catalog Mercedes-Benz Accessories Catalog Mercedes-Benz Technical Articles Mercedes-Benz Tech Forums
 
Follow Pelican Parts on Facebook Follow Pelican Parts on Twitter Follow Pelican Parts on Instagram Follow Pelican Parts on YouTube Follow Pelican Parts on Pinterest Follow Pelican Parts on Tumblr
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
Bookmark and Share

Pelican Technical Article:

Replacing the Window Motor

Mike Holloway

Time:

1 hour1 hr

Tab:

$140 to $528

Talent:

**

Tools:

10mm socket, Phillips head screwdriver, flathead screwdriver, plastic trim tool

Applicable Models:

Mercedes-Benz 450SL (1975-80)

Parts Required:

Window motor part #001-820-77-42-MBZ

Hot Tip:

Wear gloves, there are sharp edges inside

Performance Gain:

Window operation

Complementary Modification:

Replace the window regulator

Before the window lifting mechanism can be replaced, the door panel must be removed. Replacing the door side panel is a simple task if you use a gentle touch and patience. It is easy to break the clips that hold the panel in place if you use too much force. A trim tool is handy and works best. This job can be accomplished with a plastic trim tool and a small Phillips head screwdriver. On the inside of the door near the catch clasp remove the flash plate by unscrewing the Phillips head screws using a small Phillips head screwdriver. The screws are small and likely to be lost if you do not immediately put them in a small box or baggie.

Before you do any work on your car it is important that you wear safety glasses, work gloves and dispose of all fluids in a safe manner. Coolant is poisonous and should be treated as such. Animals and small children have been known to die from ingesting coolant. If you have to jack up your car, make sure to use jack stands and chock your wheels as well as applying the parking brake. Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability. Always wear eye and hand protection. Disconnect the battery before working on your car.

Before the window motor can be replaced, the door panel has to be removed.
Figure 1

Before the window motor can be replaced, the door panel has to be removed. In order to do this, first the chrome flashing must be removed. On the inside of the door near the catch clasp remove the flash plate by unscrewing the Phillips head screws using a small Phillips head screwdriver. The screws are small and likely to be lost if you do not immediately put them in a small box or baggie. 

To remove the plate you will have to slide it down.
Figure 2

To remove the plate you will have to slide it down. It may require a little force but it will move with force. 

There is another flash plate located under the side mirror that also must be removed.
Figure 3

There is another flash plate located under the side mirror that also must be removed. Use a short handled Phillips head screwdriver for best results.

Using a Phillips head screwdriver, remove the cover for the door clasp.
Figure 4

Using a Phillips head screwdriver, remove the cover for the door clasp.

You will have to remove the screw that holds the armrest.
Figure 5

You will have to remove the screw that holds the armrest. The chrome trim can slide down exposing the Phillips screw. Loosen and remove the Phillips screw.

Below the armrest is a Phillips screw that has to be loosened and removed.
Figure 6

Below the armrest is a Phillips screw that has to be loosened and removed. Once this screw is removed the armrest can be slid out.

The side panel has a Phillips screw that has to be loosened and removed.
Figure 7

The side panel has a Phillips screw that has to be loosened and removed. It is located towards the front of the door near the hinge.

Once all the screws have been removed, use a large flathead screwdriver to lift the door panel off the clips holing it to the door.
Figure 8

Once all the screws have been removed, use a large flathead screwdriver to lift the door panel off the clips holing it to the door. A gentle nudge should lift it off. Start by working the panel near the door clasp. 

Using a large flathead screwdriver, gently separate the panel from the top edge.
Figure 9

Using a large flathead screwdriver, gently separate the panel from the top edge. You may have to lift the panel upward from the bottom. Use care when lifting off the panel and keep in mind that the clips are sharp. The panel is free to lift off the doorframe.

Using a 10mm socket, remove the five nuts securing the lifting mechanism to the doorframe.
Figure 10

Using a 10mm socket, remove the five nuts securing the lifting mechanism to the doorframe. There will be two pairs located near the window motor and one on the far end above the lock actuator. This will need to be done in order to be able to get to the window motor.

Disconnect the lead from the window motor.
Figure 11

Disconnect the lead from the window motor.

Using a 10mm socket, loosen and remove the three screws that are holding the window motor in place.
Figure 12

Using a 10mm socket, loosen and remove the three screws that are holding the window motor in place.

The window motor can now be removed through the large opening in the doorframe.
Figure 13

The window motor can now be removed through the large opening in the doorframe.
Installation is the reverse of removal. Refer to the article on window adjustment when replacing the window.

Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Wed 12/7/2016 02:51:02 AM