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# Check door foil and fastening clips (9). Installation: Replace damaged door foil and fastening clips (9).
# Check door foil and fastening clips (9). Installation: Replace damaged door foil and fastening clips (9).
# Install in the reverse order
# Install in the reverse order
This video shows in detail how to replace the Door Control Module which is the central brains behind all door functions including most power window functions.
In the case of the specific issue in this video, as soon as the engine was turned on, the driver window would automatically roll down. Replacing the Door Control Module with a used part from eBay for
around $40 as of Aug 2022, fixed the issue. Another solution would be to reprogram the module but that requires special tools and access not afforded to most DIYers.
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|{{#ev:youtube|https://youtu.be/Bu6hFyjh6NQ|320|left|Replace S600 S50 S430 S55AMG Door Control Module (By Masood)|frame}}
Disconnect electrical connector from left front door control unit (N69/1) and right front door control unit (N69/2). For this purpose, remove covering (2).
Unclip cover on switch group (5) with switch group from door lining (4). For this purpose, pull cover on switch group (5) downward at bottom edge until cover on switch group (5) can be removed.
Unscrew bolt (6) from round cover plate (7). For this purpose, remove round cover plate (7).
Unscrew bolts (10, 11) from inner door handle
Remove screw (13). For this purpose, remove cover (12).
Press door lining (4) off of inner door panel (8). Move mounting wedge (14) directly to fastening clips (9) and ensure that the retainer tabs on the fastening clip (9) do not tear out of the door lining (4).
Lift door lining (4) at top on sealing rail out of retaining clips and simultaneously pull away from inner door panel (8). Installation: Remove fastening clips remaining on inner door panel (8) and install.
Unhook Bowden cable from inside door opener
Disconnect electrical connectors from door lining (4) and lay down door lining (4)
Check door foil and fastening clips (9). Installation: Replace damaged door foil and fastening clips (9).
Unhook Bowden cable (1) for inside door opener onto door lock (6) and remove. Unclip holder (8) on lock.
Open retainer (4) for unlocking bar (3).
Press IRCL line (5) off door lock IRCL element
Drill out blind rivets (arrows). Use 4.8 mm dia. drill for drilling out, taking care not to damage the inner door panel. Drive out remains of rivets with suitable drift. Remove remains of rivets and swarf from door, danger of rusting.
Unhook window lift guide rail (9) from inner door panel and push to one side
Unscrew lock fixing screws (11)
Unscrew lock cover screw (10). Lock cover is permanently attached to the door lock and cannot be removed separately.
Remove door lock (6) via access cover
Installing:
Insert door lock (6) via access cover
Screw in lock fixing screws (11)
Screw in and tighten screw (10) for lock cover
Hook window lift guide rail (9) onto inner door panel with the two mounting hooks
Rivet window lift guide rail (9) flush with inner door panel with 4.8 mm blind rivets (arrows)
Connect central locking line (5) to central locking element on door lock
Close retainer (4) for unlocking bar (3). With retainer (4) open, push unlocking bar upwards until resistance can be felt. Then close retainer again
Hang Bowden cable (1) onto door lock (6). Clip holder (8) to door lock.
Remove guide (2). Slightly pivot guide (2) toward rear and then pull out toward outside. Simultaneously pull out handle (1) slightly. Avoid damaging paint.
Disconnect driver's door infrared receiver connector (X8/13)
Remove handle (1) with bases (4) and (5). Pull handle (1) with bases (4) and (5) out of hinge strap (8) toward rear.
Remove door liner
Pull off insulating mat in area of door lock
Remove hinge strap (8). First open retainer for release handle, unscrew screw (9) from handle recess and remove hinge strap (8) with release handle through installation opening in inner door panel.
Installation:
Install hinge strap (8). Insert hinge strap (8) with release handle through installation opening in inner door panel and insert release handle into control lever retainer. Turn screw (9) into handle recess.
Install handle (1) in hinge strap (8) together with bases (4) and (5). Ensure that the lever on the handle slides behind the actuation lever (11) on the bracket so that the lock can be unlocked.
Insert guide (2). Simultaneously insert driver's door infrared receiver connector (X8/13). When inserting the guide (2) ensure that the rotating rod (3) is moved into the door lock (14) in the correct position.
Tighten guide with Torx screw (6). Secure Torx screw (6) against falling down.
Adjust clearance between handle (1) and actuation lever (12). Press release handle with retainer opened up until resistance can be felt. Then lock retainer.
Check clearance. Pull handle (1) until resistance can be felt clearly.
Glue on insulating mat. Replace damaged insulating mat.
Install door liner
Insert installation opening (13) cap into narrow side of door
Check for proper function
Screw for front door handle: 3 Nm
Adjustment values for side door: Clearance: 2(+-1)mm
Removing and installing exterior door handle on front door (KEYLESS-GO)
1 - Handle
2 - Lock cylinder guide
3 - Rotating rod
4 - Base
5 - Base
6 - Torx screw
7 - Allen screw, 6
8 - Hinge strap
9 - Screw
10 - Base
11 - Control lever
X8/13 - Driver's door infrared receiver connector
S47x1 - Capacitive sensor and push contact connector
S48x1 - Capacitive sensor and push contact connector
2 - Lock cylinder guide
3 - Rotating rod
6 - Torx screw
13 - Opening for Torx screw
14 - Door lock
X8/13 - Driver's door infrared receiver connector
X35/1 - Left door separation point
X35/2 - Right door separation point
S47x1 - Capacitive sensor and push contact connector
S48x1 - Capacitive sensor and push contact connector
Removal:
Remove cap from installation opening (13) narrow side of door
Remove guide (2). Slightly pivot guide (2) toward rear and then pull out toward outside. Simultaneously pull out handle (1) slightly. Avoid damaging paint.
Disconnect driver's door infrared receiver connector (X8/13)
Remove door liner
Disconnect keyless go connector on hinge strap (8)
Remove handle (1) with bases (4) and (5). Pull handle (1) with bases (4) and (5) out of hinge strap (8) toward rear.
Pull off insulating mat in area of door lock
Remove hinge strap (8). First open retainer for release handle, unscrew screw (9) from handle recess and remove hinge strap (8) with release handle through installation opening in inner door panel.
Disconnect keyless go connector on inner door panel. Remove cable strap.
Installation:
Install hinge strap (8). Insert hinge strap (8) with release handle through installation opening in inner door panel and insert release handle into control lever retainer. Turn screw (9) into handle recess.
Contact keyless go connector on inner door panel. Replace cable strap.
Install handle (1) in hinge strap (8) together with bases (4) and (5). Ensure that the lever on the handle slides behind the actuation lever (11) on the bracket so that the lock can be unlocked.
Contact keyless go connector on bearing bracket (8)
Insert guide (2). Simultaneously insert driver's door infrared receiver connector (X8/13). When inserting the guide (2) ensure that the rotating rod (3) is moved into the door lock (14) in the correct position.
Tighten guide with Torx screw (6). Secure Torx screw (6) against falling down.
Adjust clearance between handle (1) and actuation lever (12). Press release handle with retainer opened up until resistance can be felt. Then lock retainer.
Check clearance. Pull handle (1) until resistance can be felt clearly.
Glue on insulating mat. Replace damaged insulating mat.
Install door liner
Insert installation opening (13) cap into narrow side of door
Check for proper function
Screw for front door handle: 3 Nm
Adjustment values for side door: Clearance: 2(+-1)mm
Remove/install front door side airbag unit
1 - Riveting
2 - Sidebag unit
3 - Retaining plate
R12/9 - Driver sidebag squib
R12/10 - Front passenger sidebag squib
Switch off ignition and store transmitter key outside of transmission range (min. 2 m)
Disconnect battery ground line
Remove door lining from left or right front doors
Release and disconnect electrical connector from driver sidebag squib (R12/9) or from front passenger sidebag squib (R12/10)
Drill rivets (1) out from the bracket plate (3) of the sidebag unit (2)
Remove sidebag unit (2)
Install in the reverse order
Check and erase vehicle fault memory using diagnostic system (when replacing sidebag unit (2)).
Front left door airbag.
Connection to airbag.
Error Code
Generated By
Description
9243
AB - Airbag
The resistance value in the ignition circuit containing component R12/10 (Front passenger side airbag ignition squib) is too high.
Remove/install front door power window switch group
1 - Molding
2 - Door control module cover
3 - Door handle cover
4 - Door trim panel
5 - Switch group cover
6 - Assembly wedge
S20/1 - Switch group for power window, driver's side
Press molding strip (1) out of door control module cover (2) on driver's door with assembly wedge (6)
Remove door handle cover (3) from door handle in direction of arrow
Unscrew door control module cover (2) from door liner (4) of driver's door and press off with assembly wedge (6)
Unclip switch group cover (5) with switch group for power window, driver's side (S20/1) from door liner. For this purpose slightly press cover in at bottom edge (arrow) and lift until cover can be removed together with switch group for power window, driver's side (S20/1).
Remove power window switch group connector, driver's side from door control module.
Remove switch group cover (5) from power window switch group, driver's side (S20/1). For this purpose press retaining lugs (arrows) for power window switch group, driver's side (S20/1) together with suitable tool until power window switch group, driver's side (S20/1) can be removed out of switch group cover (5) toward inside. Power window switch group, driver's side (S20/1) can only be replaced completely.
Install in the reverse order
Remove/install front power window switches
1 - Switch cover
2 - Door trim panel
S19s1 - Right front power window switch
Unclip switch cover (1) with right front power window switch (S19s1) from door liner (2) on passenger door. For this purpose lift switch cover (1) at bottom edge (arrow) until switch cover (1) can be removed with right front power window switch (S19s1).
Disconnect right front power window switch connector from right front power window (S19s1).
Remove switch cover from right front power window switch (S19s1). For this purpose press retaining lugs (arrows) for right front power window switch (S19s1) together with suitable tool until right front power window switch (S19s1) can be pressed out of switch cover toward inside.
