BMW 5 Series: On the road

 Operating strategy of the heat management module

The following graphic shows the positions of the rotary valve as the coolant temperature increases. Circuit diagram of heat management module in B58TU engine 0 % - Rotary valve closed 100% - Rotary valve open Cold start Warm-up phase Operating temperature Transition from normal operatio

 Crankcase monitoring

On-board diagnosis Feed-in point of the blow-by gases to the clean air line upstream from the exhaust turbocharger Non-return valve Connection to exhaust turbocharger Captive screws Crankcase bleeding connection Tank ventilation connection Connection to clean air line Aluminum heating pip