13 53 596 Replacing High Pressure Fuel Sensor

13 53 596 Replacing High-Pressure Fuel Sensor (N55)

Special tools required:







WARNING:
Observe warning on cylinder head cover.
Disconnect battery negative terminal (risk of fire due to short-circuiting on removal).
Electric fuel pump starts up automatically when door is opened.
Carry out installation work on fuel system only with coolant temperature below 40 °C.







IMPORTANT:
Wear full face guard and protective gloves.
Fuel can emerge spontaneously at high velocity when the high-pressure line is released.







IMPORTANT: Read and comply with notes on protection against electrostatic discharge (ESP protection).







IMPORTANT:
Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system.
- Do not allow any dirt particles or foreign bodies to get into the system.
- Remove all traces of dirt before removing pipes or individual components.
- Use only fluff-free cloths.
- Seal all fuel system openings with protective caps or plugs.







Necessary preliminary work:
- Remove ignition coil cover
- Remove clean air pipe







Recycling:
Fuel escapes when fuel lines are detached.
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste disposal regulations.







Release screws (1).
Put cable channel aside.







Unlock plug (1) and remove.
Release high-pressure sensor (2) and remove.
Tightening torque 13 53 4AZ with special tool. 32 2 100
Seal rail (3) 32 1 270 if necessary with a matching plug from special tool kit.







Assemble engine.
Check fuel system for leaks.
Check function of DME.