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Home >> Mercedes Benz >> 2008 >> S450 >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Seats, Bunks, Restraint Systems - 221 Chassis - 3 Of 4 >> Testing & Repair >> Remove/install head restraint drive unit - AR91.29-P-1200SX

Remove/install head restraint drive unit - AR91.29-P-1200SX

MODELS 221.0/1 front seat 

Fig 1: Identifying Head Restraint Drive Unit Remove/Install Components
G10129808Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove left or right head restraint   AR91.16-P-0040SX
2 Detach terminal strips (1) on front seat backrest    
3 Disconnect electric connector (2)    
4 Release catch hook (3) to right and remove left front head restraint motor (M27/4) or right front head restraint motor (M28/4)    
5 Install in the reverse order