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Adjusting Camshaft Timing

WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

Before carrying out adjustment work:

Check camshaft timing, refer to 11 31 005 CHECKING CAMSHAFT TIMING (M52TU/M54/M56) .

Crank engine in direction of rotation until cam tips on inlet and exhaust camshafts on 1st cylinder face one another.

Fig 1: Cranking Engine Twice Until Cam Tips Face Each Other
G03159748Courtesy of BMW OF NORTH AMERICA, INC.

Secure crankshaft with special tool 11 2 300 in TDC position of 1st cylinder.

Fig 2: Installing Flywheel Locking Tool
G03159749Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not turn the engine back.

Remove special tools 11 2 300/11 5 180 before starting engine.

Unscrew studs.

Fig 3: Removing Studs From Cylinder Head
G03159750Courtesy of BMW OF NORTH AMERICA, INC.

Remove double VANOS adjustment unit, refer to 11 36 010 REMOVING AND INSTALLING OR REPLACING DOUBLE VANOS ADJUSTMENT UNIT (M52TU/M54/M56) .

Press down top of chain tensioner and lock off with special tool 11 3 292.

Fig 4: Locking Secondary Chain Tensioner
G03159751Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Cylinder for chain tensioning piston is under spring pressure.

Remove cylinder for chain tensioning piston. Refer to 11 31 090 REMOVING AND INSTALLING/REPLACING CHAIN TENSIONING PISTON (M52/M52TU/M54/M56) .

Fig 5: Removing Cylinder For Chain Tensioning Piston
G03159752Courtesy of BMW OF NORTH AMERICA, INC.

Install special tool 11 4 220.

Fit adjusting screw to bow cover.

Fig 6: Installing Timing Chain Tensioning Tool
G03159753Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) by half a turn.

Fig 7: Loosen Exhaust Side Screws (1)
G03159754Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts (2) by two turns.

Release nuts (3) by one turn.

Fig 8: Loosen Nuts (2) & (3)
G03159755Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Toothed shaft (4) slips very easily from splines.

Pull out toothed shaft (4) until approx. 1 mm of splines can be seen.

Fig 9: Pulling Out Toothed Shaft As Illustrated (Inlet Side)
G03159756Courtesy of BMW OF NORTH AMERICA, INC.

Withdraw toothed shaft (5) up to stop.

Fig 10: Pull Toothed Shaft Out To Stop (Exhaust Side)
G03159757Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 3 240 to camshafts on cylinder 6. Align camshafts so that special tool 11 3 240 rests without gaps on cylinder head.

Fig 11: Fitting Special Tool 11 3 240 To Camshafts
G03159758Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 11 3 244 to special tool 11 3 240 and locate by way of spark plug thread.

Fig 12: Attaching Special Tool 11 3 244 To Special Tool 11 3 240
G03159759Courtesy of BMW OF NORTH AMERICA, INC.

Press down chain tensioner at top and remove special tool 11 3 292.

Fig 13: Removing Locking Tool From Secondary Chain Tensioner
G03159760Courtesy of BMW OF NORTH AMERICA, INC.

Preload tensioning rail with special tool 11 4 220 by rotating adjusting screw with special tool 00 9 250 or standard torque wrench to 0.7 Nm.

Fig 14: Preload Timing Chain Tensioning Rail
G03159761Courtesy of BMW OF NORTH AMERICA, INC.

Preload cup spring slightly by pressing on sensor gear (1) and tighten nuts by hand.

IMPORTANT: Do not tighten down nuts fully.
Fig 15: Preload Sensor Gear
G03159762Courtesy of BMW OF NORTH AMERICA, INC.

Remove gasket.

Check dowel sleeves (1) for damage and correct installation position.

Keep sealing face clean and free of oil.

Fig 16: Clean Surface & Check Dowel Sleeves
G03159763Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Fit special tool 11 6 150 "without gasket" only.
If gasket remains underneath special tool 11 6 150, camshaft timing will be "incorrectly" set.

Attach special tool 11 6 150 "without gasket", tighten nuts by hand and then tighten down uniformly until special tool 11 6 150 is in full contact with cylinder head.

Fig 17: Attaching Special Tool 11 6 150 To Cylinder Head
G03159764Courtesy of BMW OF NORTH AMERICA, INC.

Insert screws (1) on exhaust side and initially tighten to approx. 5 Nm.

Fig 18: Inserting Screws (1) On Exhaust Side
G03159765Courtesy of BMW OF NORTH AMERICA, INC.

Initially tighten nuts (2) on exhaust side and nuts (3) on inlet side to approx. 5 Nm.

Fig 19: Tightening Nuts On Exhaust Side (2) & Inlet Side (3)
G03159766Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (1) on exhaust side.

Tightening torque, refer to 11 31 3AZ in ENGINE MECHANICAL - TIGHTENING TORQUES - 530I (E39) .

Fig 20: Tightening Down Screws (1) On Exhaust Side
G03159767Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down nuts (2) on exhaust side and nuts (3) on inlet side.

Tightening torque, refer to 11 31 11AZ in ENGINE MECHANICAL - TIGHTENING TORQUES - 530I (E39) .

Fig 21: Tightening Down Nuts On Exhaust Side (2) & Inlet Side (3)
G03159768Courtesy of BMW OF NORTH AMERICA, INC.

Pull special tool 11 2 300/11 5 180 back until flywheel is no longer secured.

Fig 22: Removing Flywheel Locking Tool
G03159769Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 3 244 and special tool 11 3 240.

Fig 23: Removing Special Tools 11 3 244 & 11 3 240
G03159770Courtesy of BMW OF NORTH AMERICA, INC.

Crank engine twice in direction of rotation until cam tips on inlet and exhaust camshafts on 1st cylinder face one another.

Fig 24: Cranking Engine Twice Until Cam Tips Face Each Other
G03159771Courtesy of BMW OF NORTH AMERICA, INC.

Secure crankshaft in firing TDC position with special tool 11 2 300.

Fig 25: Installing Flywheel Locking Tool
G03159772Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not turn the engine back.
Remove special tools 11 2 300/11 5 180 before starting engine.

Fit special tool 11 3 240 to camshafts.

Fig 26: Fitting Special Tool 11 3 240 To Camshafts
G03159773Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The timing is correctly set if the special tool 11 3 240 rests without a gap on the cylinder head or protrudes up to 1 mm to the inlet side.

The timing must be reset if the special tool 11 3 240 protrudes to the exhaust side.

Fig 27: Checking Cam Timing
G03159774Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten and remove special tool 11 4 220.

Fig 28: Removing Special Tool 11 4 220
G03159775Courtesy of BMW OF NORTH AMERICA, INC.

Install cylinder for chain tensioning piston. Refer to 11 31 090 REMOVING AND INSTALLING/REPLACING CHAIN TENSIONING PISTON (M52/M52TU/M54/M56) .

Fig 29: Installing Cylinder For Chain Tensioning Piston
G03159776Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 2 300/11 5 180.

Fig 30: Removing Flywheel Locking Tool
G03159777Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 6 150.

Fig 31: Removing Special Tool 11 6 150
G03159778Courtesy of BMW OF NORTH AMERICA, INC.

Install VANOS adjustment unit, refer to 11 36 010 REMOVING AND INSTALLING OR REPLACING DOUBLE VANOS ADJUSTMENT UNIT (M52TU/M54/M56) .

Assemble engine.

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