BMW 3: Wheels and tires
BMW 3 Series G20 (2018-2025) Owners Manual / Wheels and tires
- Tire inflation pressure
- Tire identification marks
- Tire tread
- Changing wheels and tires
- Run-flat tires
- Mobility System
- Snow chains
- Tire Pressure Monitor TPM
- Concept, General information, Safety information
- Tire settings
- Messages: for tires without special approval
- Actions in the event of a flat tire
- System limits
- Flat Tire Monitor FTM
- Changing wheels/tires
- General information, Safety information
- Securing the vehicle against rolling
- Jacking points for the vehicle jack
- Emergency wheel
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Tire inflation pressure
General information
The tire characteristics and tire inflation pressure
influence the following:
The service life of the tires.
Road safety.
Driving comfort.
Fuel consumption.
Safety informatio
Tire identification marks
Tire size
245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Max
Tire tread
Summer tires
Do not drive with a tire tread of less than
0.12 in/3 mm, otherwise there is an increased
risk of hydroplaning.
Winter tires
Do not drive with a tire tread of less than
0.16 in/4 mm, as s
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Actions in the event of a flat tire
Normal tires
1. Identify the damaged tire.
Check the tire inflation pressure in all four
tires, for instance using the tire pressure gage
of a flat tire kit.
For tires with special approval: if the tire inflation
pressure in all four tires is correct, the TPM may not have been reset. In this
case
xDrive
Concept
xDrive is the all-wheel-drive system of the vehicle.
The interaction of xDrive and other suspension
control systems, such as DSC Dynamic Stability
Control, further optimizes traction and driving dynamics. xDrive variably
distributes the
driving forces to the front and rear axles as demande
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