Fine-link snow chains
Only certain types of fine-link snow chains have been tested by the manufacturer of the vehicle, classified as road-safe and approved.
Information about the approved snow chains are available from the service center.
Use
Use only in pairs on the rear wheels, equipped with the tires of the following size:
No snow chains on size 245/55 R 17 tires
Do not mount snow chains on size 245/55 R 17 tires; otherwise, the vehicle may become damaged.
Follow the snow chain manufacturer's instructions.
Make sure that the snow chains are always sufficiently tight. Retighten as needed according to the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after mounting snow chains, as doing so may result in incorrect readings.
Do not initialize the Tire Pressure Monitor after mounting snow chains, as doing so may result in incorrect readings.
When driving with snow chains, briefly activate Dynamic Traction Control if needed.
Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h when using snow chains.
BMW X3 Owners Manual > Maintenance: Socket for OBD Onboard
Diagnosis
Note
Socket for Onboard Diagnosis
The socket for onboard diagnostics may
only be used by the service center or a workshop
that operates in accordance with the
specifications of the vehicle manufacturer with
correspondingly trained personnel and other
authorized persons. Otherwise, use may res ...