BMW 7 Series: Wiper Motor
The front wiper motor is a little smaller than the wiper motor in the E65.
Advantages of the wiper motor:
- Lighter
- Less noise
- Reversing wiper motor
- Stable wiper speed
- Reduced tendency of the wiper blades to judder
- Alternating rest position of the wiper blades.
The wiper motor has two speed settings for wiping the windscreen.
The wiper motor receives information about the wiper stage via the LIN bus. The LIN-bus messages are evaluated by electronics in the wiper motor.
A constant speed is generated by the electronics, enabling consistent wiping by the windscreen wipers.
The wiper motor stores the wiper arms, and therefore also the wiper blades, outside the field of vision, as in the E65. In addition, they are stored on alternate sides. This prevents unnecessary wear on the wiper blades and they will remain pliant for longer.
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Fig. 85: Identifying Storage Position Of Wiper Blade
WIPER STORAGE POSITION
- Storage position 1 of the wiper blade
- Storage position 2 of the wiper blade
Washer Fluid Pump
A washer fluid pump is located in the washer fluid reservoir for cleaning the windscreen. The pump is actuated directly by the junction box electronics.
Pump for Headlight Washer
A high pressure pump is used for the headlight washer system. The pump is activated via a relay in the front power distribution box.
Heated Washer Jets
Three heated water jets are used for the windscreen washer. The washer jets have a PTC resistor that automatically limits the power consumption.
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Fig. 86: PTC Resistor Characteristic Graph
PTC RESISTOR CHARACTERISTIC
1 - Characteristic of a resistor
R - Resistance
t - Time
READ NEXT:
Service Information
Wiper/washer System Emergency Operating Functions
Emergency Operation in the Event of the Steering Column Switch Cluster
Failing
The wipers can no longer be operated in the event of the steering colu
Introduction
Outside Mirrors
For the F01/F02, there is only one variant of the outside mirrors. The
outside mirrors can be electrically
adjusted as standard. The outside mirrors are equipped with a mirror heating
SEE MORE:
Headlight Fogging Fault Pattern
NOTE: Certain weather conditions can lead to fogging on the inside of the
headlight
lens.
This is not necessarily a fault that requires replacement of the
headlight.
Permissible fogging. Headlight does not need to be replaced.
Impermissible fogging. Replace the headlight.
Fig. 42: Identifying
Electrical Steering Column Adjustment Normalization
NOTE: Normalization must be carried out after the following work:
Removal or replacement of control panel in heater-A/C system or of
steering column
Repair work to electric steering column adjustment
Coding/programming of IHKA control unit
Normalization of electric steering column adjustment i
