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

On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN

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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Place the depth gauge (1) flat onto the high pressure pump flange.
Turn the engine at the central bolt in the direction of engine rotation until the camshaft is in the BDC position.
The depth gauge (1) is in the lowest position.
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 the arrow direction until the cam of the high-pressure pump drive is at the BDC position .
NOTE:
RISK OF DAMAGE
Damage to the surface .
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage .
- Do not use any metal-cutting tools.
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NOTE: TECHNICAL INFORMATION
The sealing surfaces must be free of oil, grease and cleaning agents.
Clean sealing surface (1) .
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 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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Guide in and install the seal (1) .

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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.

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TIGHTENING TORQUE SPECIFICATIONS

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

Position union nut (2) and turn it a few times.
Position screw (1) and turn it a few times.

Tighten union nut (2) .

TIGHTENING TORQUE SPECIFICATIONS

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

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Tighten down screw (1) .

TIGHTENING TORQUE SPECIFICATIONS

Fuel supply line to cylinder head cover/cylinder head
M6x16	tightening torque	10 Nm

Follow-up work

Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to FASTENING THE WIRING HARNESS SECTION TO THE LEFT CYLINDER HEAD COVER .
Refer to INSTALLING THE IGNITION COILS OF CYLINDER 5-8 .
Refer to INSTALLING LEFT CLEAN AIR PIPE .
Refer to CONNECTING THE LEFT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
Refer to INSTALLING THE HOLDER FOR THE DME CONTROL UNIT ON THE LEFT .
Refer to INSTALLING THE DME CONTROL UNIT OF CYLINDERS 5 TO 8 .
Refer to INSTALLING COVER FOR THE LEFT DME CONTROL UNIT .
Refer to INSTALLING INTAKE FILTER HOUSING .
Refer to INSTALLING THE RIGHT STRUT BRACE .
Refer to INSTALLING THE STRUT BRACE .
Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
Refer to INSTALLING ACOUSTIC COVER .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .