2012 BMW 640I CONVERTIBLE maintenance schedule

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Page 126 of 282

BMW 640I CONVERTIBLE 2012  Owners Manual Switching the system on/off
Switching off
▷
Complete system:
At the lowest fan speed, press the
left 
side of the button on the driver's
side. ▷
On the front passenger side:
At the lowest fan

Page 228 of 282

BMW 640I CONVERTIBLE 2012  Owners Manual Fuel
Fuel quality
Refuel with unleaded fuel only
Do not use leaded fuel as this would per‐
manently damage the catalytic converter.
◀
Do not refuel with ethanol
Do not refuel with E85, i.e., fuel