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Replacing Your Rear Window Regulator
 
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Pelican Technical Article:

Replacing Your Rear Window Regulator

Steve Vernon

Time:

2 hours2 hrs

Tab:

$0

Tools:

T20 Torx driver, Drill and bits, trim removal tool, rivet tool or small nuts and bolts

Applicable Models:

Mercedes-Benz W203 (2001-07)

Parts Required:

New Regulator

Hot Tip:

Get some spare window regulator clips

Performance Gain:

Windows that work

Complementary Modification:

Really clean the glass

If you are having troubles with your rear window regulators and they need to be replaced, this article will take you through the process step by step. You are going to be drilling out the three rivets that hold the regulator in place so be prepared to either re-rivet in the new one or if you are replacing the rivets with nuts and bolts be sure to use some Blue Loctite when installing. To begin you will need to remove the door panel. Please see our article on removing your rear door panel and complete the work there before starting this project. NOTE: make sure you lower the window until it is approximately 5 1/2 inches up from the window sill.

If you have removed the door panel without lowering the window, now is the time to lower it so the top of the glass is approximately 5 1/2 inches up from the lower molding.

Unplug and remove the speaker from the door. It is held in place by three T20 Torx screws.

You do NOT need to remove the airbag when replacing the rear window regulator.

Gently peel back the membrane on the door and tape it up out of the way.

With the insulation out of the way you can see the door handle bracket. The window regulator and guide clip is located behind this bracket.

Insert a T20 Torx driver through the access hole and remove the bolt that holds the window to the clip. No matter how carefully you remove the clips there is a good chance one of them will break so it is a good idea to order replacements before you start.

Separate the glass from the clip and pull the glass to the top of the window frame and secure it there. You are going to have to drill out the three rivets that hold the regulator in place and you do not want to worry about drilling into the glass.

Drill out the three rivets holding the regulator in place. The regulator sits in a slot. Lift it up and out to free it.

Disconnect the wiring harness by squeezing the connection and pulling apart.

Turn the regulator sideways and lower it to the access hole in the door.

Carefully remove the regulator from the door through the lower cutout.

Installation is the reverse of removal. Don't forget to use some blue Loctite if you are reinstalling with nuts and bolts instead of rivets.

Before you begin you should lower the window so it is approximately 5 1/2 inches up from the sill.
Figure 1

Before you begin you should lower the window so it is approximately 5 1/2 inches up from the sill.

If you have removed the door panel without lowering the window now is the time to lower it so the top of the glass is approximately 5 1/2 inches (red arrow) up from the lower molding.
Figure 2

If you have removed the door panel without lowering the window now is the time to lower it so the top of the glass is approximately 5 1/2 inches (red arrow) up from the lower molding.

Unplug and remove the speaker from the door.
Figure 3

Unplug and remove the speaker from the door. It is held in place by three T20 Torx screws (reed arrows).

Carefully peel back the membrane from the door, leave the sticky stuff (red arrow) as you will need to reinstall this membrane later.
Figure 4

Carefully peel back the membrane from the door, leave the sticky stuff (red arrow) as you will need to reinstall this membrane later.

With the insulation out of the way you can see the door handle bracket (red arrow).
Figure 5

With the insulation out of the way you can see the door handle bracket (red arrow). The window regulator and guide clip is located behind this bracket.

Insert a T20 Torx driver through the access hole and remove the bolt that holds the window to the clip.
Figure 6

Insert a T20 Torx driver through the access hole and remove the bolt that holds the window to the clip.

No matter how carefully you remove the clips there is a good chance one of them will break (red arrow) so it is a good idea to order replacements before you start.
Figure 7

No matter how carefully you remove the clips there is a good chance one of them will break (red arrow) so it is a good idea to order replacements before you start.

Separate the glass from the clip and pull the glass to the top of the window frame and secure it there (red arrow).
Figure 8

Separate the glass from the clip and pull the glass to the top of the window frame and secure it there (red arrow). You are going to have to drill out the three rivets that hold the regulator in place and you do not want to worry about drilling into the glass.

Drill out the three rivets (red arrows) holding the regulator in place.
Figure 9

Drill out the three rivets (red arrows) holding the regulator in place. The regulator sits in a slot (yellow arrow). Lift it up and out to free it.

Disconnect the wiring harness by squeezing the connection (red arrow) and pulling it apart.
Figure 10

Disconnect the wiring harness by squeezing the connection (red arrow) and pulling it apart.

Turn the regulator sideways and lower it to the access hole in the door.
Figure 11

Turn the regulator sideways and lower it to the access hole in the door. Carefully remove the regulator from the door through the lower cutout.

This photo illustrates the regulator out of the door.
Figure 12

This photo illustrates the regulator out of the door. Installation is the reverse of removal

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Comments and Suggestions:
Mohammad Comments: I have a broken rear right side window glass.By using your excellent demonstration, I have already remove the panel, but van not replace the window glass. how can I insert the new glass in to the window's frame?
Thanks
November 23, 2016
  Followup from the Pelican Staff: Separate the glass from the clip and pull the glass to the top of the window frame and secure it there (red arrow). You are going to have to drill out the three rivets that hold the regulator in place and you do not want to worry about drilling into the glass. - Nick at Pelican Parts  
Joe Comments: There is only 1 part in fig no 7 mate
January 8, 2016
  Followup from the Pelican Staff: Correct. I believe the author is referring to all the clips, then indicating one. - Nick at Pelican Parts  
Joe Comments: I need a replacement part from fig no 7
How much will this cost me ?
I'm in Melbourne victoria
Thanks
Joe
January 8, 2016
  Followup from the Pelican Staff: There are a lot of parts in that photo.


Give our parts specialists a call at 1-310-626-8765. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Sailing Fool Comments: Hello,

I've successfully replaced the regulator, but when I roll it up, it gets to the top then retracts down a couple inches. How to I train it to close properly?

Thanks in advance!
April 9, 2015
  Followup from the Pelican Staff: Try holding the switch in the up position once the window closes for a few seconds. - Nick at Pelican Parts  
Frank Comments: How you remove the window from the regulator in a 2001 mercedes ml 320 rear driver side.

Thanks
March 19, 2015
  Followup from the Pelican Staff: You have to remove the weatherstrip for the door frame. Then remove the window glass fasteners on the regulator and lift it up. - Nick at Pelican Parts  
Vinello Comments: Hi. I need the replacement part of figure No.7. Do you know the name of this clip? Where i can found it? Thanks
February 24, 2015
  Followup from the Pelican Staff: We can get it for you.

Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need.
- Nick at Pelican Parts
 
Pete Comments: whats the part number on figure 7? I only see Part Number: 203-720-01-14-M22 window installation kit on your website, but it doesn't look like figure 7.
June 13, 2014
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799. They can help you find the right part.
- Nick at Pelican Parts
 
Richard Comments: I need to know where to connect the rear power window cable as it is just hanging there, Please help
May 31, 2014
  Followup from the Pelican Staff: An electrical cable or drive cable? If electrical - to the window motor. If drive, the regulator is likely faulty. - Nick at Pelican Parts  
gus Comments: I have a mercedes 2004 clk320 and i'd like to know how to replace the rear passanger window regulator. i've done it with my c240 but this one it looks totally different. if you can help me with that,i'll appreciated.
December 11, 2013
  Followup from the Pelican Staff: If we get the chance to perform the repair, we will be sure to create a tech article. I would grab a repair manual. It will have the procedure, special tools and torque specs.
- Nick at Pelican Parts
 
charles Comments: I need to know how to remove the rear panel on my CLK 320 convertible 2 door so that I can replace the rear window regulator.
THANKS!
October 22, 2013
  Followup from the Pelican Staff: Call out parts specialist at 888 280 7799 and they will help you get the repair manual you need - Kerry at Pelican Parts  

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Page last updated: Mon 1/16/2017 02:30:50 AM