Install the left high pressure pump

NOTE: RISK OF DAMAGE
Contaminant or foreign body .
Contamination can result in malfunctions, loss of function or leaks .

Adhere to the utmost cleanliness.
Protect components from contamination e.g. by covering.
Close off line connections with seal plugs.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

NOTE: TECHNICAL INFORMATION
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN .

Remove the seal (1).

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Check the threads (1) on the high pressure pump flange for sealing compound residue: Remove sealing compound residue as needed.
Clean the thread (1).
Make sure that no contamination gets into the engine.
Cover opening at the high pressure pump flange with suitable materials.

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NOTE: TECHNICAL INFORMATION
The sealing surfaces must be free of oil, grease and cleaning agents.

Clean sealing surface (1).

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Replace the high-pressure pump seal (1).
Parts: Seal
Use compressed air to remove screw sealant residues in the threaded holes on the high pressure pump bracket .

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Guide in and install the seal (1).

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Place the depth gauge (1) flat onto the high pressure pump flange.
Twist the engine at the central bolt in the direction of engine rotation until the BDC position of the camshaft is reached at the depth gauge.

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NOTE: RISK OF DAMAGE
Damage to the engine .
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged .

Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.

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Turn the engine in arrow direction until the cam of the high-pressure pump drive is at the BDC position .
Coat piston rest (1) of the high pressure pump (2) with engine oil.

Engine oil

Technically suitable engine oils for BMW Group engines

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NOTE: TECHNICAL INFORMATION
The high pressure pump is preloaded by the piston spring and must be removed by alternately unscrewing the screws without tilting.
Before installing the high pressure pump, the cam of the high pressure pump drive must be turned to bottom dead center.
If necessary, turn the engine in the direction of engine rotation on the central bolt of the crankshaft, otherwise there is a risk of piston breakage of the high pressure pump.

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Turn the high pressure pump (1) clockwise and position it.
Feed in and install high pressure pump (2).
Replace screws (1).
Parts: Screws
Position the screws (1) on the high pressure pump (2) and tighten them in alternating order in 90° increments.
Compliance with this specification is imperative to make sure that the piston will not break due to twisting.

TIGHTENING TORQUES SPECIFICATION

High-pressure pump to cylinder head
M6 Replace screws.	Tightening torque	11.8 Nm
M6 Replace screws.	Angle of rotation	90°

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Tighten nut (1).

TIGHTENING TORQUES SPECIFICATION

Fuel delivery line to high pressure pump
M14	Tightening torque	30 Nm

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Connect plug connection (1) and lock.

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Make sure that the connector of the high pressure pump (1) is not confused with the connector of the intake air temperature sensor .
If there are no colored marks (3) on the plug connections of the high pressure pump: Attach the marks .
If necessary, identify the connector using the wiring diagram by means of cable colors in area (2).

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Make sure that the connector of the intake air temperature sensor (1) is not confused with the connector of the high pressure pump .
If necessary, identify the connector using the wiring diagram by means of cable colors in area (2).

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Follow-up work

Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to INSTALLING THE IGNITION COILS OF CYLINDER BANK 2 .
Refer to ATTACHING COOLANT EXPANSION TANK .
Refer to INSTALLING THE CONTROL UNIT BRACKET FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING BOTH FRONT-END STRUTS .
Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE COVER OF THE LEFT DME CONTROL UNIT .
Refer to CONNECTING ALL BATTERY GROUND LEADS .