13 53 596 Replacing high pressure fuel sensor (B46, B48)
Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short-circuiting on dismantling).
Electric fuel pump starts up automatically when door is opened!
Carry out installation work on fuel system only with coolant temperature below 40°C.
Attention!
Wear full face guard and protective gloves.
Fuel can emerge spontaneously at high speed when the high pressure line is released!
Attention!
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 contamination before removing lines or separate components.
- Use only lint-free cloths.
- Seal all fuel system openings with protective caps or plugs.
Recycling:
Fuel escapes when fuel lines are detached.
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste disposal regulations.
Necessary preliminary work:
- Remove ACOUSTIC COVER
Removal:
Unlock connector (1) and pull off.
Release high pressure sensor (2) and remove.
Close the rail with fitting plugs if necessary.
Installation:
Screw high-pressure sensor (2) into rail and tighten.
Tightening torque 13 53 1AZ .
Plug connector (1) into high pressure sensor (2).
Connector (1) must engage audibly.
Required follow-up work:
- Install ACOUSTIC COVER
- Connect BATTERY EARTH LEAD