See also:

Radio ready state
Activate radio ready state: ▷ When the ignition is switched off: press ON/ OFF button on the radio. ▷ When the engine is running: press START/ STOP button. Some electronic systems/p ...

Deleting stored functions
Press and hold the left and right button on the interior rearview mirror simultaneously for approximately 20 seconds until the LED flashes rapidly. All stored functions are deleted. The functi ...

Under the Hood
The 640i is powered by a 315-horsepower, turbocharged 3.0-liter six-cylinder engine. Its peak torque rating is 332 pounds-feet. BMW cites a zero to 60 mph time of 5.5 seconds for both the coupe an ...