51 22 435 Removing And Installing Function Carrier (With Roller Sun Blind) On Left Or Right Rear Door

Necessary preliminary tasks: 

• Remove DOOR TRIM PANEL 

Version with roller sun blind only: 

• Remove ROLLER SUN BLIND OF FIXED SIDE WINDOW 
• Remove GUIDE RAIL  for roller sun blind

Release screws (1).

Disconnect plug connections (2).

Feed out door wiring harness (kink-free) through wiring harness opening (3).

Disconnect BOWDEN CABLE  (4).

Version with roller sun blind only: 

Unfasten screws (5 and 6).

Fig 1: Identifying Wiring Harness Opening, Bowden Cable And Plug Connections

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Release quick-release couplings.

Remove function carrier.

Installation: 

If necessary, replace defective quick-release couplings.

Make sure quick-release couplings are installed in correct position.

• Quick-release coupling grey 1.8 mm
• Quick-release coupling white 0.8 mm
  Fig 2: Releasing Quick-Release Couplings

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Installation: 

Seal on function carrier (sound insulation) must not be damaged.

Fig 3: Identifying Function Carrier (Sound Insulation)

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Installation: 

Version with roller sun blind only: 

Installation sequence:

• Install function carrier
• Connect cable and Bowden cable (graphic R51 3078)
• Lock couplings (graphic R51 3080)
• Install ROLLER SUN BLIND 
• Install GUIDE RAIL 
• Tighten screws (1)
• Press roller blind cassette (2) upwards and tighten down screws (3)
• Tighten screws (4)
• Install DOOR TRIM PANEL 
• Carry out FUNCTION TEST ON ROLLER SUN BLIND 

Tightening torque, screw (1): 51 16 10AZ  . See MIRRORS, FINISHERS, ASHTRAYS, CONSOLES for specs.

Tightening torque, screws (3): 51 16 11AZ  . See MIRRORS, FINISHERS, ASHTRAYS, CONSOLES for specs.

Fig 4: Pressing Roller Blind Cassette Upwards

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