Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Operating Windows
Operating the window from the driver's seat
The window operation is initiated via the switch on the control panel (3/176).
The power window motor on the driver's side is regulated directly by the driver door module (DDM) (3/126). The power window motor on the passenger side is regulated via CAN communication from the driver door module (DDM) to the passenger door module (PDM) (3/127). Signals for operation of the rear driver's side window is sent from the driver door module (DDM) to the rear window via LIN communication. Signals for operation of the rear passenger side window is sent from the driver door module (DDM) to the passenger door module (PDM) via the CAN network and then on to the rear window via LIN communication.
Operating the front window on the passenger side
The passenger door module (PDM) (3/127) only operates the front passenger side window. The window is operated by the switch in the control panel (3/83). The signal is sent to the power window motor on the passenger side via the passenger door module (PDM).
Operating the window in the left rear door
The left rear door module (LDM) (3/128) can only operate the left rear door window. The window is operated by the switch in the control panel (3/19). The signal is sent to the power window motor in the left rear door via the left rear door module (LDM).
Operating the window in the right rear door
The right rear door module (RDM) (3/129) can only operate the right rear door window. The window is operated by the switch in the control panel (3/21). The signal is sent to the power window motor in the right rear door via the right rear door module (RDM).
Activating the child lock
If the child lock is activated via the driver door module (DDM), the rear windows cannot be operated from the rear doors. The child lock is operated via the switch in the control panel on the driver's side. A signal is transmitted to the driver door module (DDM) and on via LIN communication to the left rear door module (LDM) and right rear door module (RDM), which block window operation in the respective door.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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