Mercedes Benz Workshop Service and Repair Manuals

Filtering impurities out of the fuel. Maintaining constant fuel pressure in wide limits irrespective of the fuel pump delivery.

Fuel Filter With Integrated Fuel Pressure Regulator, Design

Fuel Filter With Integrated Fuel Pressure Regulator, Design

55/1 

Fuel filter with integrated fuel pressure regulator

55/3 

Valve

55/5 

Membrane

55/6 

Push spring

55/9 

Filter insert

55/40 

Diaphragm pressure regulator

A 

Feed from fuel pump

b 

Vent line

B 

Return flow to fuel tank

C 

Fuel to engine

Fuel Filter With Integrated Fuel Pressure Regulator, Function

Fuel Filter With Integrated Fuel Pressure Regulator, Function