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Home >> Mercedes Benz >> 2008 >> GL450 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> Charging, Control Panel/Cluster, Data Bus, Fuses/ Relays, PARKTRONIC, Sensors & Switches - 164 Chassis >> Testing & Repair >> Remove/install upper control panel control unit - AR54.21-P-1262GZ

Remove/install upper control panel control unit - AR54.21-P-1262GZ

MODEL 164 

Shown on vehicle with offroad package, code 430 

Fig 1: Identifying Upper Control Panel Control Unit Remove/Install Components - Shown On Vehicle With Offroad Package, Code 430
G05259087Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove/instal    
NOTES Information on preventing damage to electronic components due to electrostatic discharge All models AH54.00-P-0001-01A 
1 Switch off ignition and remove the transmitter key from the EIS [EZS] control unit IMPORTANT On vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).  
2 Disengage instrument panel center part (1) at bottom edge (arrows A) and pull forward out of instrument panel IMPORTANT Protect trim parts of the instrument panel and center console from scratches.  
3 Separate electrical connectors (3)    
4 Remove screws (4)    
5 Slacken screws (2) and remove upper control panel control unit (N72/1) IMPORTANT Only slacken the screws (2) (do not remove them fully).  
6 Install in the reverse order