BMW 7 Series: Wiper Switch on the Steering Column Stalk
The wiper switch on the steering column stalk with the following functions is located in the steering column switch cluster:
- Intermittent wipe
- Wipe in stages 1 and 2
- Windscreen washer
- Headlight washer
- Switch for the rain/lights/solar/condensation sensor
- Indicator for activated rain/lights/solar/condensation sensor.
The wiper switch has sliding contacts that are located on the circuit board for the steering column switch cluster. The switch functions are realized by means of these sliding contacts.
The interval switch is a four-stage switch. Each stage produces different input values in the steering column switch cluster. The input values are evaluated for setting the sensitivity of the rain/lights/solar/condensation sensor or the intermittent wipe stage.
The button for the rain/lights/solar/condensation sensor is designed as an ground-switching button. It is required for switching on the rain/lights/solar/condensation sensor. The LED is illuminated when the rain/lights/solar/condensation sensor is activated.
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Fig. 84: Identifying Wiper Switch On Steering Column Stalk
COMPONENTS DESCRIPTION CHART
- Wiper switch on the steering column stalk
- Wiper-stage switch for sensitivity of the rain sensor/intermittent wipe stage
- Rain/lights/solar/condensation sensor LED
- Rain/lights/solar/condensation sensor button
Function matrix for the wiper/washer system steering column stalk
WIPER/WASHER SYSTEM STEERING COLUMN STALK FUNCTION MATRIX
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Function matrix of the steering column stalk for the wiper/washer system with automatic wiping by the rain/lights/solar/condensation sensor
WIPER/WASHER SYSTEM STEERING COLUMN STALK FUNCTION MATRIX
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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 wipe
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
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Necessary preliminary work:
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Open screw lock (1).
Release screws (2) and remove protective cap (3).
Tightening torque: 1, 5 Nm
Fig. 35: Opening Screw Lock To Release Screws And Protective Cap
Installation note:
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Electrical Sun Roof Components
NOTES ON GLASS SLIDE/TILT SUNROOF (INITIALIZATION/NORMALIZE OF
CHARACTERISTIC CURVE)
NOTE: Initialization comprises:
Normalization
Learning characteristic curve
The mechanical end positions are recorded and stored during normalization.
The characteristic curve is learnt immediately after norma
