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 and convertible. The standard eight-speed automatic transmission includes steering-wheel-mounted shift paddles.
Other standard features include computer-controlled adaptive shock absorbers and Driving Dynamics Control, which allows the driver to adjust the ride quality, accelerator response, power-steering assist level and automatic transmission behavior.
Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear-wheel steering to the earlier generation's variable-ratio front steering system.
See also:
Power failure
After a temporary power loss, some equipment
needs to be reinitialized.
Individual settings need to be reprogrammed:
▷ Seat and mirror memory: store the positions
again.
▷ Time: upd ...
Switching the microphone to mute
When a call is active, the microphone can be
muted.
1. "Telephone"
2. "Active calls"
3. "Microphone mute"
A microphone that has been switched to mute
is automatic ...
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Do not exceed the maximum engine and road
speeds:
▷ For gasoline engine, 4,500 rpm and
100 mph/160 km/h.
▷ For die ...
