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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 172 (Fuel System - Repair - R57 (N14)) >> Injection Pump, Regulator, Mixture Regulator >> 13 51 017 Removing and installing/replacing high-pressure pump (N14, N18)

13 51 017 Removing and installing/replacing high-pressure pump (N14, N18)

WARNING: This page is about a different variant/trim than selected.
WARNING: Disconnect BATTERY NEGATIVE LEAD (risk of fire due to short circuit on dismantling).

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 speed 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 lines or separate components.
  • Use only fluff-free cloths.
  • Seal all fuel system openings with protective caps or plugs.

Necessary preliminary work: 

Recycling 

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Removal 

Disconnect plug connection (1).

Remove screws and dispose of.

Detach high-pressure pump (2) and remove.

NOTE: Engine oil can escape when pump is detached; have a cleaning cloth ready.
Fig 1: Identifying High-Pressure Pump With Plug Connection
G04789966Courtesy of BMW OF NORTH AMERICA, INC.

Installation of high pressure pump is described separately from removal.

Installation 

Installation note: 

Fig 2: Identifying High-Pressure Pump Unit With Sealing Ring
G04789967Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Align drive unit of high-pressure pump with respect to groove (1) on intake camshaft.

Fig 3: Identifying Groove
G04789968Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Replace screws (1).

Observe following installation sequence:

  1. Hand-tighten bolts (1) of high pressure pump (2) (high pressure pump must still move)
  2. Hand-tighten new pressure line (3). First tighten nut (4) on high pressure rail and then tighten nut (5) on high pressure pump
  3. Tighten high pressure pump

    4. Tightening torque 13 51 1AZ .

  4. Tighten pressure line (3).

Tightening torque 13 53 1AZ .

Fig 4: Identifying High Pressure Pump With Nut, Bolt, Screws And Pressure Line
G04789969Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check fuel system for TIGHTNESS .

Check function of DME.

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