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.
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
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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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
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
SEE MORE:
WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Necessary preliminary work
Disconnect BATTERY CABLE
Fold up covers (1). Unscrew nuts (2).
Tightening torque 61 21 2AZ.
Unscrew nut (3).
Tightening torque 61 21 3AZ.
Disconnect plug connection (4).
Fig. 184: Identifying Batter
Caring for special components
Light-alloy wheels
When cleaning the vehicle, use only neutral
wheel cleaners having a pH value from 5 to 9. Do
not use abrasive cleaning agents or steam jets
above 140 ℉/60 ℃. Follow the manufacturer's
instructions.
Aggressive, acidic or alkaline cleaning agents c