2020 Mercedes Benz Truck ML 63 AMG Technical Service Bulletin # S-72_10-114

2020 Mercedes Benz Truck ML 63 AMG Technical Service Bulletin # S-72_10-114 Date: 100601

Body - Power Windows Intermittently Inoperative Info. Date: June 2010 Order No: S-B-72.10/114 Group: 72 SUBJECT: Models: 164, 216, 221, 251 Power Windows Intermittently Not Functioning Correctly Page 290 If you receive customer reports in the above model vehicles of the power windows intermittently not functioning correctly and no fault codes are present or stored, this may be due to a function called thermal protection The power window motors are protected against overheating by a software-based thermal protection function in the respective door control unit or front SAM control unit. If the thermal protection function is triggered, the power window motor cannot be actuated for a short period of time. Typically after a waiting time of approximately 30 seconds (depending on outside temperature) the windows can be actuated again. A misaligned window will take more effort from the motor to move the window. This may lead to the power windows entering thermal protection mode. Some symptoms of misalignment: ^ The window will not move uniformly through its travel range. ^ The tone of the window motor may change during the window's travel range. Note: After-market tint applied to the side window adds thickness. This may cause more friction (motor strain) in the travel range of the window. If window misalignment is suspected, use the following WIS documents to ensure the window system is properly calibrated: 164: ^ Front door alignment, AR72.10-P-0550GZ ^ Front door window alignment, AR72.10-P-1921GZ ^ Rear door alignment, AR72.12-P-0650GZ 251: ^ Adjust front door, AR72.10-P-0559RT ^ Front door window alignment, AR72.10-P-1921GZ ^ Adjust rear door, AR72.12-P-0650RT 221: ^ Adjust front door, AR72.10-P-0550SX ^ Adjust rear door, AR72.12-P-0650SX 216: ^ Adjust front door, AR72.10-P-0550SC