Diagnosis OBD

On the driver's side is an OBD socket for checking components relevant to the composition of the vehicle's emissions.
See also:
Advanced axle design further refined: five-link rear axle improves driving
dynamics and comfort
Incorporating various significant improvements and refinements, the rear axle
of the new BMW 3-Series makes an important contribution to the new model's
improved driving dynamics and comfort. Its ...
M Dynamics
The 1M's dynamics are typical M — balanced and controllable overall. The car
enters turns with practically no understeer, and rear traction can be broken
loose through both acceleration and lift. ...
BMW 320d: powerful torque, outstanding smoothness and further improved fuel
efficiency
The new-generation BMW 3-Series Sedan features the BMW TwinPower Turbo
four-cylinder diesel engine of its predecessor, which has been honed for even
greater fuel economy and lower emissions with n ...
