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Remove/Install Panoramic Sliding Roof Drive Unit - AR77.21-P-1000ME

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Model 167.1/9 With Code 413 (Automatic panoramic sliding sunroof) 

Fig 1: Panoramic Sliding Roof Drive Unit/Motor Components Location - Model 167.9 With Code 413
G14792087WARNINGREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
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
REMOVINGINSTALLING Remove/install     
1 Lower roof lining until the panoramic sliding sunroof motor (A98m1) is accessible.   AR68.30-P-4300ME
2 Release and disconnect electrical connector (1) from the panoramic sliding sunroof motor (A98m1).    
3 Secure panoramic sliding sunroof motor (A98m1) against falling down, remove screws (2), and remove panoramic sliding sunroof motor (A98m1).    
4 Install in the reverse order    
  Normalizing     
5 Normalize panoramic sliding sunroof using vehicle diagnosis system and perform teach-in run for automatic reversing function.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06ME