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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Seats, Bunks, Restraint Systems - 463 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Seat Fore/Aft Adjustment Drive Motor - AR91.29-P-1428XG

Remove/Install Seat Fore/Aft Adjustment Drive Motor - AR91.29-P-1428XG

Model 463 

as of model year 2019 

Fig 1: Seat Fore/Aft Adjustment Drive Motor Components Location - Model 463 As Of Model Year 2019
G13670527Courtesy of MERCEDES-BENZ USA
G13670528Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury.  Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
REMOVING Remove     
1 Remove front seat and lay it on its side.   AR91.10-P-1000XG 
2 Disconnect electrical connector at driver seat fore/aft adjustment seat adjustment motor (M27/1) or at front passenger seat fore/aft adjustment seat adjustment motor (M28/1).    
3 Push catch hooks (3) to one side and remove bracket (4).    
4 Unclip shaft (2) from brackets of rail (1).    
5 Lift driver seat fore/aft adjustment seat adjustment motor (M27/1) or front passenger seat fore/aft adjustment seat adjustment motor (M28/1) at entrance of shaft (2), bend shaft (2) and pull out. NOTES Do not lift or twist driver seat fore/aft adjustment seat adjustment motor (M27/1) or front passenger seat fore/aft adjustment seat adjustment motor (M28/1) too far.
Otherwise the guide pins (5) will be damaged.
INSTALLATION IMPORTANT Ensure that the driver seat fore/aft adjustment seat adjustment motor (M27/1) or the front passenger seat fore/aft adjustment seat adjustment motor (M28/1) is installed in the correct position on the guide pins (5) and the shaft (2).
 
6 Remove driver seat fore/aft adjustment seat adjustment motor (M27/1) or front passenger seat fore/aft adjustment seat adjustment motor (M28/1) with shafts (2, 6) from rail (1). INSTALLATION IMPORTANT Ensure that the driver seat fore/aft adjustment seat adjustment motor (M27/1) or the front passenger seat fore/aft adjustment seat adjustment motor (M28/1) is installed in the correct position on the guide pins (5) and the shaft (6).  
INSPECT Check     
7 Pull shafts (2, 6) out of driver seat fore/aft adjustment seat adjustment motor (M27/1) or out of front passenger seat fore/aft adjustment seat adjustment motor (M28/1) and check for wear. When replacing the driver seat fore/aft adjustment seat adjustment motor (M27/1) or the front passenger seat fore/aft adjustment seat adjustment motor (M28/1).
If the shafts (2, 6) are damaged,

replace the respective shaft (2, 6).
 
INSTALLING Install     
8 Install in reverse order.