Functional requirements
The system must have been reset when the inflation pressure was correct; otherwise, reliable signaling of a flat tire is not ensured. Always use wheels with TPM electronics to ensure that the system will operate properly. Reset the system after each correction of the tire inflation pressure and after every tire or wheel change.
See also:
Sport program DS and manual mode M/S
Activating sport program DS
Push the selector lever to the left out of transmission
position D.
DS is displayed in the instrument cluster.
The sport program of the transmission is activated. ...
Signaling a turn
Press the lever beyond the resistance point.
To switch off manually, press the lever to the resistance
point.
Unusually rapid flashing of the indicator lamp indicates
that a turn signal bulb has ...
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...