Special tools required:

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

11 2 300
11 5 100
11 7 130
11 9 140
12 6 050
12 6 410
12 6 411

For identification of special tools, refer to ENGINE- SPECIAL TOOLS .

Remove fan clutch with fan cowl. Refer to 11 52 020 Removing and installing/replacing fan clutch (S52 / S54 / M52 / M52TU / M54 / M56) .

Remove cylinder head cover. Refer to 11 12 000 Removing and installing, sealing cylinder head cover (S54) .

Remove all spark plugs.

When the engine is switched off, VANOS moves the camshafts to a position which is advantageous to engine starting.

CAUTION: The timing must "not" be checked in this position.
The camshafts must first be turned back to their initial position.

Attach special tool 11 5 100 to four screws of crankshaft hub.

Fig 1: Attaching Special Tool

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Rotate crankshaft in direction of rotation as far as firing TDC position of 1st cylinder.

Fig 2: Rotating Crankshaft

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CAUTION: Do not turn the engine back.

Rotate crankshaft in direction of rotation as far as ignition TDC position of cylinder 1. Secure vibration damper in position with special tool 11 2 300.

Fig 3: Securing Vibration Damper In Position

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Detach bracket of oil line from timing case cover.

Fig 4: Detaching Bracket Of Oil Line

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Remove oil line from VANOS adjustment unit.

Fig 5: Removing Oil Line From VANOS Adjustment Unit

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Fit special tool 11 7 130 to VANOS adjustment unit.

Connect compressed air (2 to 8 bar).

Fig 6: Fitting Special Tool To VANOS Adjustment Unit

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Disconnect plug connection on solenoid valve.

Fig 7: Disconnecting Plug Connection On Solenoid Valve

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Connect special tool 12 6 050 in conjunction with special tool 12 6 411 (from special tool kit 12 6 410) to solenoid valves.

Connect special tool 12 6 411 to correct terminals on car battery.

Alternately press toggle switch buttons 1 and 2 several times on special tool 12 6 050.

Fig 8: Connecting Special Tool To Solenoid Valves

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Press and hold down toggle switch button 1 on special tool 12 6 050.

At same time, rotate inlet camshaft at hexagon drive against direction of rotation as far as it will go.

NOTE: Spline teeth in VANOS gear are engaged; and inlet camshaft cannot be rotated further.

Fig 9: Rotating Inlet Camshaft

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Alternately press toggle switch buttons 3 and 4 several times on special tool 12 6 050.

Fig 10: Pressing Toggle Switch Buttons

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Press and hold down toggle switch button 3 on special tool 12 6 050.

At same time, rotate exhaust camshaft at hexagon drive against direction of rotation as far as it will go.

Fig 11: Rotating Exhaust Camshaft

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NOTE: Spline teeth in VANOS gear are engaged; and exhaust camshaft cannot be rotated further.

Disconnect compressed air from special tool 11 7 130.

Remove special tool 11 7 130.

Fig 12: Disconnecting Compressed Air From Special Tool

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Check camshaft setting:

Attach special tool 11 9 140 and join in locating bore of inlet camshaft.

Fig 13: Checking Inlet Camshaft Setting

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NOTE: The inlet camshaft is correctly adjusted when special tool 11 9 140 rests flat on the cylinder head or protrudes by max. 0.5 mm to the exhaust side.
If the special tool 11 9 140 protrudes to the inlet side, the timing must be readjusted.

Join special tool 11 9 140 in locating bore of exhaust camshaft.

Fig 14: Checking Exhaust Camshaft Adjustment

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NOTE: The exhaust camshaft is correctly adjusted when special tool 11 9 140 rests flat on the cylinder head or protrudes by max. 0.5 mm to the exhaust side.
If the special tool 11 9 140 protrudes to the inlet side, the timing must be readjusted.

If necessary, adjust camshaft timing. Refer to 11 31 505 Adjusting camshaft timing (S54) .

Replace sealing rings of banjo bolt.

Insert banjo bolt but do not tighten down yet.

Fig 15: Inserting Banjo Bolt

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Install bracket of oil line. Install screw and tighten down.

Fig 16: Installing Bracket Of Oil Line

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Tighten down banjo bolt of oil line.

Tightening torque, 11 36 9AZ. Refer to 11 36 VARIABLE CAMSHAFT CONTROL .

Fig 17: Tightening Down Banjo Bolt Of Oil Line

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Remove special tool 11 2 300.

Assemble engine.

Fig 18: Removing Special Tool

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CAUTION: 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.