See also:

Switch off the engine during longer stops
Switch off the engine during longer stops, e.g., at traffic lights, railroad crossings or in traffic congestion. Fuel savings are achieved after the vehicle is switched off for only approx. 4 s ...

General information
Enclosed areas Do not let the engine run in enclosed areas; otherwise, breathing of exhaust fumes may lead to loss of consciousness and death. The exhaust gases contain carbon monoxide, an od ...

Have maintenance carried out
Have vehicles maintained regularly to achieve optimal vehicle economy and operating life. Have the maintenance carried out by your service center. Please also note the BMW Maintenance System, ...