67 31 570 Removing and installing/replacing drive for head restraint height adjustment on left or right front seat

Necessary preliminary tasks: 

Version without crash-active head restraint: 

• Remove head restraint  , see 52 14 390 REMOVING AND INSTALLING OR REPLACING FRONT LEFT OR RIGHT HEAD RESTRAINT .
• Remove rear panel on front seat backrest  , see 52 14 198 REMOVING AND INSTALLING OR REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST .

Version with crash-active head restraint: 

• Remove crash-active head restraint  . see 52 16 393 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT CRASH-ACTIVE HEAD RESTRAINT

Pull backrest cover (1) in direction of arrow over metal lugs (2) and detach.

Detach backrest cover (1) on both sides from backrest frame.

Feed backrest cover (1) out of upper backrest frame.

Disconnect plug connection (1).

Release screws (2).

Tightening torque 67 31 3AZ  , see 67 31 DRIVE, SEAT ADJUSTMENT .

Feed out drive for head restraint height adjustment (3) in direction of arrow and remove.