Remove/install rear door control unit - AR72.29-P-1100SX

MODEL 221.0 

MODEL 221.1 except CODE (Z07) Top protection 

Fig 1: Identifying Rear Door Control Unit Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1.1	Intermediate store basic data of left rear door control unit (N69/3) or right rear door control unit (N69/4) in STAR DIAGNOSIS	When replacing left rear door control unit (N69/3) or right rear door control unit (N69/4). Transfer buffered basic data to new left rear door control unit (N69/3) or new right rear door control unit (N69/4).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
2	Remove rear door lining		AR72.12-P-1010SX
3	Switch off ignition and withdraw transmitter key or Keyless Go start/stop button from the EIS [EZS] control unit	Keyless Go start/stop button only for vehicles with code (889) Keyless Go.
4	Disconnect all electrical connectors from left rear door control unit (N69/3) or right rear door control unit (N69/4)	Ensure that electrical lines are routed properly.
5	Unscrew bolts (1) and remove left rear door control unit (N69/3) or right rear door control unit (N69/4)		*BA72.12-P-1012-01M
6	Install in the reverse order