13 53 180 Replacing delivery line (N14)
WARNING: This page is about a different variant/trim than selected.
Special tools required:
- 13 0 220
- 32 1 270
WARNING:
Disconnect BATTERY NEGATIVE TERMINAL
(risk of fire due to short-circuiting on removal).
Carry out installation work on fuel system only with coolant temperature below 40°C.
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!
Fuel can emerge spontaneously at high velocity when the high-pressure line is released!
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 tasks:
- Remove INTAKE FILTER HOUSING
Recycling:
Fuel escapes when fuel lines are detached.
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
Removal:
NOTE:
For purposes of clarity, picture shows intake manifold removed.
Slacken nut (1).
Slacken nut (2).
Remove and discard delivery line (3).
IMPORTANT:
The removed pressure line must not be reused; instead, it must be replaced!
Seal high-pressure rail and high-pressure pump with matching plugs (1) from special tool kit 32 1 270.
Installation of pressure rail is described separately from removal.
Installation:
The procedure described below must be followed precisely (to avoid leaks):
- When tightening screw connections, first tighten nut (3) and then nut (1)
- Pre-install new delivery line (2), only hand-tighten nuts (3 and 1).
- Mount special tool 13 0 220 for securing pressure line (2) to screw fastening point of intake manifold (4)
Tightening torque 11 61 1AZ
- Tighten nuts (3 and 1) according to tightening specifications 13 53 1AZ .
- Remove special tool 13 0 220
Tightening torque 11 61 1AZ
- Check fuel system for LEAKS .
Assemble engine.
Check function of DME.