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:
Removing And Installing RDC (Tyre Pressure Control) Control Unit
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
Removing And Installing/Replacing RDC Reception Aerial
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
Removing And Installing/Replacing An RDC Trigger Transmitter
(Front)
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:
Instructions For Adapting Adjustment Unit For Reversing Camera
(CORGHI KDS Quick-Action Clamp)
The following operations should only be carried out when using the tool kit
for calibrating the reversing camera
for the first time.
NOTE: The operation is described for the left-hand side; proceed in the
same way for
the right-hand side.
Remove support plate (1) from spindle (2).
Replace spindle
Central Information Display
Main Menu
The display in the main menu consists of the following menu items:
CD/Multimedia
Radio
Telephone
Navigation
Contacts
Vehicle Info
Settings.
Fig. 16: Display Telephone
In addition to this main menu, an arrangement of toggle switches for the most
important menu items in the main
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