BMW 7 Series: General Information On Light Alloy Disc Wheels
NOTE: It is sometimes difficult to distinguish light alloy disc wheels
visually from steel
disc wheels.
Identifying features:
- Sticker on light alloy disc wheel. (1) = Indication "Aluminium"
- Wall thickness of rim dish: approx. 8 mm.
- Light alloy disc wheels are not magnetic.
- Light alloy disc wheels can be identified from their BMW parts numbers.
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Fig. 34: Identifying Light Alloy Disc Wheel Sticker
IMPORTANT:
- Use only BMW-approved two-part balancing weights.
- When fitting two-part balancing weights, always use specified tools.
- Do not straighten light alloy disc wheels: always replace damaged
light
alloy disc wheels.
- Notches in light alloy disc wheels can lead to cracking.
- Do not lubricate wheel nuts.
- When fitting tires, avoid damaging light alloy disc wheels, e.g. on
sharpedged retaining claws on fitting machine.
INITIALIZING RUN FLAT INDICATOR (RPA)
NOTE: Checking the tire pressure is based on monitoring the speeds of the
wheels in
relation to each other. A tire puncture is detected and signalled by way of a
deviation in specific speed ratios.
The four tires mounted on the vehicle are monitored while the vehicle is
moving.
Initialization must be carried out in each case immediately after tire pressures
have been corrected, after tires/wheels have been replaced and after repairs to
the air spring system.
IMPORTANT: The Run Flat Indicator does not function when the vehicle is
driven with the
compact spare wheel.
Please refer to the relevant Owner's Handbook for details of the
initialization procedure.
RDC RESETTING
NOTE: RDC monitors the tire inflation pressure in the four wheels.
Each tire incorporates an electronic wheel circuit, which constantly monitors
the tire inflation pressure.
The system signals when the inflation pressure drops in one or more tires.
Resetting must be carried out in each case immediately after tire pressures
have been corrected, after tires/wheels have been replaced and after repairs to
the air spring system.
Please refer to the relevant Owner's Handbook for details of the resetting
procedure.
READ NEXT:
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DAMAGE (ESD protection).
Necessary preliminary tasks
Remove right LUGGAGE COMPARTMENT WHEEL ARCH PANEL.
Disconnect plug con
Necessary preliminary tasks
Remove front left UNDERBODY PANELLING
Disconnect plug connection (1).
Gently press retaining tabs apart in direction of arrow and remove RDC aerial
(2).
Fig. 46: Pres
Necessary preliminary tasks
Detach WHEEL ARCH COVER front section at front
Disconnect plug connection (1).
Gently press lugs (2) apart.
Remove RDC sensor (3) in direction of arrow.
Fig. 56: Remo
SEE MORE:
Input/output Diagram, Steering Column Switch Cluster
Fig. 125: Steering Column Switch Cluster Input/Output Diagram
COMPONENTS DESCRIPTION CHART
Steering column stalk for turn-indicator/high-beam switch
Steering column switch cluster (SZL)
Steering column stalk wiper switch
Footwell module (FRM
ADJUSTING WASHER JETS FOR WINDSCREEN WASHER SYSTEM
Triple nozzle system
Fig. 351: Identifying Washer Spray Jet Adjusting Values
The spray jets should hit the middle of the wiping area.
Adjustment values in mm
A1= 200
A2= 400
B1= 400
B2= 400
C1= 450
C2= 450
D1= 230
D2= 350
E1= 500
E2= 350
F1= 550
F2