ME-SFI fuel rail, location/task/design/function - GF07.61-P-3101M

ENGINE 275.950 in MODEL 215, 220

ENGINE 275.951 in MODEL 230 up to Model Year 8

ENGINE 275.953 in MODEL 216, 221 up to Model Year 8

ENGINE 275.954 in MODEL 230 up to Model Year 8

ENGINE 275.980 in MODEL 215, 220

ENGINE 275.981 in MODEL 230 up to Model Year 8

ENGINE 275.982 in MODEL 216, 221 up to Model Year 8

ENGINE 285.950 in MODEL 240

ENGINE 285.980 in MODEL 240

Fig 1: Identifying Fuel Rail, Pressure Gauge Connection And Fuel Injection Valves

Courtesy of MERCEDES-BENZ USA

After opening the pressure gauge connection, always replace the seal.

ME-SFI fuel rail, location	Above the injection valves.
ME-SFI fuel rail, task	Supply fuel evenly to the injection valves under each operating condition while compensating fuel pressure variations by using its own reservoir.
ME-SFI fuel rail, design	The injection valves are installed in the fuel distribution tube with an O-ring and a retaining clamp. A pressure gauge connection is additionally integrated.
ME-SFI fuel rail, function	An adequate quantity of fuel is delivered to each injection valve. The pressure gauge connection with valve is used to test the fuel pressure and to release the pressure when carrying out assembly operations.