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Home >> Mercedes Benz >> 1994 >> C220 >> Repair and Diagnosis >> External Pages >> Different car >> Section 76 (Anti-Theft & Central Locking System - 140 Chassis) >> Basic Knowledge >> Removing and installing infrared remote control module (N54) - ra80001400440x(0440)

Removing and installing infrared remote control module (N54) - ra80001400440x(0440)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Central Locking System Model 140 

Operation no. of operation texts and work units or standard texts and flat rates 80-2716

1st version up to 11/94, USA ONLYJAPAN ONLYup to 08/95 

Sedan 

Fig 1: Identifying Infrared Remote Control Module Components (1 Of 2)
G05440475Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Sedan 

Covering (1) on right-hand side of trunk remove, install.
Plastic nuts (arrows on N54) unscrew, screw on.
Control module (N54) remove, install.
Electric coupling disconnect, connect.

Coupe 

Left rear seat cushion remove, install.
Plastic nuts unscrew, screw on.
Electric coupling disconnect, connect.
Control module (N54) remove, install.
NOTE: When replacing the control module or the transmitter key, always quote the locking mechanism number, since these two components are tuned to each other.

2nd version as of 12/94, USA ONLYJAPAN ONLYas of 09/95 

Fig 2: Identifying Infrared Remote Control Module Components (2 Of 2)
G05440476Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
A pillar trim in bottom of passenger footwell remove, install.
Cover with recirculated air filter (2) remove, install.
Screw (arrow) take off, screw on.
Electric couplings disconnect, connect.
  IMPORTANT The 12-pin connector is provided with a plug-in and withdrawal aid. To withdraw, press locking catch and fold over bar. The 2-pin connector is secured with a lock. To disconnect, press locking catch and push lock to the side.
Control module (N54) remove, insert.
NOTE: When replacing the control module or the transmitter key, always quote the locking mechanism number, since these two components are tuned to each other.

After replacing the control module, perform version coding as stated in diagnosis information.