The fuel filter is located over the left wheel arch in the engine compartment.
The fuel filter cleans fuel before the high pressure pump and prevents premature wear to delicate components. Insufficient filtration can cause damage to pump components, pressure valves and fuel injection nozzles.
It does not feature any electrical fuel heating and does not have a water separator. The filter is identical to the one use in the M51TÜ.
Electrical connection is made to the inlet pressure sensor.
To prevent paraffin residue from clogging up the filter at low temperatures, there is a bimetal valve in the return line. This valve prevents heated fuel residue from mixing with cool fuel from the tank.
