Switch off any functions that are not currently needed
Functions such as seat heating and the rear window defroster require a lot of energy and consume additional fuel, especially in city and stopand- go traffic.
Therefore, switch off these functions if they are not actually needed.
See also:
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addition,
a message will appear on the Control Display.
Check the coolant level ...
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 ...
Displaying stored Check Control messages
1. "Vehicle Info"
2. "Vehicle status"
3. "Check Control"
4. Select the text message. ...