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Remove/Install Rear Door Control Unit - AR72.29-P-1101MFA

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Model 118, 177, 243, 247 

Fig 1: Rear Door Control Unit Components Location - Model 118 (Shown On Model 177.0)
G16051737Courtesy of MERCEDES-BENZ USA

Shown on model 177.0 

WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
2 Remove left and right door trim.   AR72.12-P-1011MFA 
3 Release and disconnect electrical connectors (1) at left rear door control unit (N69/3) and/or right rear door control unit (N69/4). IMPORTANT The number of electrical connectors (1) varies depending on the vehicle equipment.  
4 Release lock (2) and remove left rear door control unit (N69/3) and/or right rear door control unit (N69/4) in direction of arrow (A). INSTALLATION IMPORTANT Ensure that guides (3) insert correctly into door module (4).  
5 Install in the reverse order.    
6 Perform commissioning of left rear door control unit (N69/3) and/or right rear door control unit (N69/4). When replacing left rear door control unit (N69/3) or right rear door control unit (N69/4).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA