11 36 140 Removing And Installing / Replacing VANOS High-Pressure Pump (S85)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 350
11 6251
11 6 252
11 6 254

IMPORTANT: Risk of damage to the VANOS high-pressure line.
Do not crank engine while banjo bolt is released.

Necessary preliminary tasks:

Remove engine oil sump .
Remove oil pump .

Release banjo bolt (1).

Tightening torque 11 36 4AZ. See 36 VARIABLE CAMSHAFT TIMING .

Release screws (2).

Remove VANOS high-pressure pump (3).

Fig 1: Identifying VANOS High-Pressure Pump

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NOTE: Engine installed.

Secure piston (1) against falling out; remove if necessary.

Check adapter sleeve (2) for damage and secure seating; replace if necessary.

Fig 2: Identifying Piston And Adapter Sleeve

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Installation:

Arrangement, chain tensioner, oil pump.

Base valve
Spring
Piston

Fig 3: Identifying Base Valve, Spring And Piston

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Installation:

Replace fine-mesh strainer.

Remove fine-mesh strainer (1) with screwdriver in direction of arrow.

Check adapter sleeve (2) for damage and secure seating; replace if necessary.

Fig 4: Removing Fine-Mesh Strainer (1 Of 2)

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Remove and fine-mesh strainer (1) in direction of arrow.

Clean sealing surface (2).

Installation:

Replace fine-mesh strainer.

Fig 5: Removing Fine-Mesh Strainer (2 Of 2)

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Check gear wheel (1) and sprocket wheel for damage, replace if necessary.

Release bolts (7).

Tightening torque 11 36 7AZ. See 36 VARIABLE CAMSHAFT TIMING .

Release screw (2).

Check sliding rail (3) for damage; replace if necessary.

Check timing chain (4) for damage; replace if necessary.

Release bolt (6).

Check tensioning rail (5) for damage; replace if necessary.

Fig 6: Identifying Sliding Rail, Timing Chain And Tensioning Rail

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IMPORTANT: Low and high teeth of gear wheels.
Replace gear wheel in pairs only.
Old build date up to 12/05: low teeth.
New build date from 12/05: high teeth.

Replacing gearwheels

Necessary preliminary tasks:

Remove vibration damper.
Remove radial shaft seal at front.

IMPORTANT: VANOS high-pressure pump from 12/05
Spacer plates must not be fitted.

Clamping rail (1) of oil pump with visible sleeve (see arrow).

It is not necessary to measure the oil pump chain.

Fig 7: Clamping Rail Of Oil Pump With Visible Sleeve

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IMPORTANT: VANOS high-pressure pump up to 12/05

Clamping rail (1) of oil pump without visible sleeve (see arrow).

On the VANOS high-pressure pump up to 12/05, it is necessary to check the pretension on the oil pump chain.

Fig 8: Clamping Rail Of Oil Pump Without Visible Sleeve

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IMPORTANT: Spacer plates are only required if the oil pump chain demonstrates excessive tension.
Low teeth of VANOS high-pressure pump before 12/05.

Tie back VANOS high-pressure line (2) with cable tie (1).

Install spacer plate (3).

Install spacer (4).

Fig 9: Identifying VANOS High-Pressure Line, Spacer Plate And Spacer

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Position VANOS high-pressure pump (3) on crankcase.

Insert screws (2).

Slide VANOS high-pressure pump in direction of crankshaft until gearwheel (3) has slight play.

Initially tighten VANOS high-pressure pump with special tool 11 4 350 to 2 Nm.

Fig 10: Identifying VANOS High-Pressure Pump

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Mount special tool 11 6 254 on crankcase.

Secure special tool 11 6 252 with magnetic base to special tool 11 6 254.

Fig 11: Identifying Special Tool 11 6 252 And 11 6 254

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Align special tool 11 6 251 with its measuring shaft (2) vertically to gearwheel (1).

Rotate high-pressure pump gearwheel (1) up to stop.

Set special tool 11 6 251 to zero.

Fig 12: Rotating High-Pressure Pump Gearwheel (1 Of 2)

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Rotate high-pressure pump gearwheel in direction of arrow up to stop.

Fig 13: Rotating High-Pressure Pump Gearwheel (2 Of 2)

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Backlash at high-pressure pump min. 0.06 to max. 0.08 mm.

If necessary, correct VANOS high-pressure pump adjustment.

Fig 14: Identifying Special Tool 11 6 252 And 11 6 254

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Adjustment of VANOS high-pressure pump (2) with a rubber mallet on pump housing.

Tightening torque 11 36 8AZ. See 36 VARIABLE CAMSHAFT TIMING .

Fig 15: Adjusting VANOS High-Pressure Pump

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Installation:

Replace all sealing rings.

Install banjo bolt (1).

Tightening torque 11 36 4AZ. See 36 VARIABLE CAMSHAFT TIMING .

Fig 16: Identifying VANOS High-Pressure Pump And Banjo Bolt

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Assemble engine.

There is air in the VANOS system once it is opened.

In the first few seconds after startup this results in a clearly discernible "rattling noise".

This rattling noise does "not" indicate incorrect assembly.

The rattling noise will disappear as soon as the oil pressure has built up and the system has vented.

Carry out venting procedure with diagnosis tester.

Perform VANOS test.