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 result in operating problems for the vehicle.
Position
There is an OBD socket on the driver's side for checking the primary components in the vehicle's emissions.
Emissions
Reduce the vehicle speed and have the system checked immediately; otherwise, serious engine misfiring within a brief period can seriously damage emission control components, in particular the catalytic converter.
BMW X3 Owners Manual > FTM Flat Tire Monitor: Initialization
When initializing the once set inflation tire
pressures serve as reference values in order to
detect a flat tire. Initialization is started by confirming
the tire inflation pressures.
Do not initialize the system when driving with
snow chains.
On the Control Display:
1. "Vehicle info ...