13 51 017 Removing and installing/replacing high pressure pump (Continental) (N55)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: Observe warning on cylinder head cover.
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.

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.

IMPORTANT: Ignition coils must not be contaminated by fuel.
The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail!
Cover ignition coil with suitable means.

Necessary preliminary tasks :

Recycling

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Release screws (1) of holder (2). Take off holder.

Fig 1: Identifying Holder And Screws

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Release screws (1) below cable channel (2).

Replace aluminium screws.

Installation note:

Adhere to tightening/torque sequence.

Fig 2: Identifying Cable Channel And Screws

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Disengage connector (1) from the fuel low-pressure sensor, oil temperature sensor and the high pressure pump and remove.

Fig 3: Identifying Fuel Low-Pressure Sensor Connector

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Remove oil temperature sensor (1).

Tightening torque 13 62 7AZ .

Fig 4: Identifying Oil Temperature Sensor

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WARNING: Wear full face guard and protective gloves.

Release fuel lines and seal off with special tools (1) 13 5 161 and (2) 13 5 162 .

Fig 5: Identifying Fuel Lines And Seal With Special Tools

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Release nut (1) on high pressure pump.

Remove feed line (2).

Installation note:

Adhere to tightening/torque sequence.

Fig 6: Identifying Nut On High Pressure Pump

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Seal feed line with matching plug from special tool kit 32 1 270 .

Fig 7: Sealing Feed Line With Matching Plug From Special Tool (32 1 270)

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Release nut (1) on high pressure line.

Fig 8: Identifying Nut On High Pressure Line

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Release nut (1) of high pressure line on rail.

Fig 9: Identifying Nut Of High Pressure Line On Rail

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Seal fuel line connections of high pressure pump (1) with matching plugs from set of special tools 32 1 270 .

Fig 10: Sealing Fuel Line Connections Of High Pressure Pump

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Release bolts with special tool 11 8 610 .

Detach high pressure pump (1) and remove.

Engine oil can escape when pump is detached; have a cleaning cloth ready.

Fig 11: Locating High Pressure Pump Bolts

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Installing high pressure pump

Installation of high pressure pump is described separately from removal.

Replace sealing ring (1).

Clean contact surfaces.

Fig 12: Identifying Sealing Ring

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When installing, turn high pressure pump (1) if necessary in direction of arrow until bore holes for screws are flush.

Fig 13: Turning High Pressure Pump

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IMPORTANT: Tighten screws of high-pressure pump (1) with special tool 11 8 610hand-tight only .

It must still be possible to turn the high pressure pump at the flange!

This helps ensure that no strain is produced when the high pressure line is tightened.

If reusing pressure line, lightly grease threads of pressure connections. Threads of new pressure lines are already coated.

Fig 14: Identifying High-Pressure Pump Screws

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Tighten nut (1) of high pressure line only hand-tight .

Fig 15: Identifying Nut Of High Pressure Line On Rail

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Tighten nut (1) of high pressure line only hand-tight .

Fig 16: Identifying Nut On High Pressure Line

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Install feed line (2) at the high pressure pump.

Only hand-tighten nut (1).

Fig 17: Identifying Nut On High Pressure Pump

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When high pressure pump (1) has turned into position and is thus pre-assembled without strain with the high pressure line, tighten screws of high pressure pump (1) with special tool 11 8 610 .

Tightening torque 13 53 1AZ .

Fig 18: Locating High Pressure Pump Bolts