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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 ...

Message when the system was not reset
The yellow warning lamp lights up. A message appears on the Control Display. The system detected a wheel change but was not reset. Warnings regarding the current tire inflation pressure are ...

Low tire pressure message
The yellow warning lamp lights up. A Check Control message is displayed. ▷ There is a flat tire or a major loss in tire inflation pressure. ▷ The system was not reset after a whee ...