Power Window Motors: E60, E61, E63, E64
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Installation location
The power window motors are each mounted near the door reinforcement.
FRONT POWER WINDOW MOTORS: E60, E61, E63, E64
| Key | Explanation | Key | Explanation |
|---|---|---|---|
| 1 | Power window motor in driver's door | 2 | Door reinforcement |
REAR POWER WINDOW MOTORS: E60, E61, E63, E64
| Key | Explanation | Key | Explanation |
|---|---|---|---|
| 1 | Power window motor in rear door on driver's side | 2 | Door reinforcement |
Construction
The power window drive is designed as a cable lift drive. The power window motor essentially comprises:
- DC motor with 2 Hall sensors
- Step-down gearing
- Electronics unit
Two Hall sensors are built into the DC motor which are addressed by a magnetic disc mounted on the armature shaft. The magnetic disc is divided into several pole pairs.
How it works
The door modules and the body basic module calculate the following for the power window motors from the Hall sensor signals:
- Direction of rotation
- Speed
- Position
In addition, trapping or blocking of the power windows is also detected.
The power windows are operated at various speeds:
- Reduced speed at the upper and lower side window stop to reduce noise (soft starting and stopping of power window motor)
- Normal speed when opening/closing without automatic operation
- Increased speed with automatic opening/closing (one-touch opening/closing)
IMPORTANT:
Initialization after repair work. Initialization is required after repair work to ensure that the position of the power windows is determined. Initialization is different for the front and rear power windows (see notes for service staff). No initialization is required after disconnecting and then reconnecting the vehicle battery.