1131505 Adjusting camshaft timing (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .

Remove fastener (1) in direction of arrow.

Installation:

Install fastener (1) with bore facing outwards.

Fig 1: Installing Fastener

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Rotate crankshaft at central bolt into TDC position.

Slide in special tool 11 0 300 MANDREL in direction of arrow and block crankshaft.

IMPORTANT: On engines with automatic transmissions, there is shortly before the special tool bore for the TDC position a large bore which can be confused with the special tool bore.

If the flywheel is secured in the correct bore with special tool 11 0 300 MANDREL , the engine can no longer be moved at the central bolt.

Fig 2: Sliding Crankshaft In Special Tool (11 0 300)

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With 1st cylinder in firing TDC position, cams of inlet camshaft (1) point upwards at an angle.

Fig 3: Identifying Camshaft

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Part numbers (2) on twin surface of inlet and exhaust camshafts (1) point upwards.

Fig 4: Identifying Camshafts With Part Number

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With 1st cylinder in firing TDC position, cams of exhaust camshaft (3) at 6th cylinder point downwards at an angle.

NOTE: If the timing is checked while the engine is installed, the position of the camshaft can only be checked with a mirror.

Fig 5: Identifying Exhaust Camshaft

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IMPORTANT: Risk of damage!
To open central bolt, mount special tools 11 4 283 11 4 281 and 11 4 282 on camshaft.

Fig 6: Identifying Special Tools

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Release central bolts (1).

Release central bolts (1) with special tool 11 4 280 GAUGE only.

Release chain tensioner (2) (have a cleaning cloth ready).

NOTE: Illustrations in CAD do not show special tools.

Fig 7: Identifying Central Bolt And Chain Tensioner

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Turn sensor gears (2) in direction of arrow until locating pins (1) on special tool 11 4 290 GAUGE match up.

Slide on special tool 11 4 290 GAUGE in direction of arrow.

Fig 8: Turning Sensor Gears

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Secure special tool 11 4 290 GAUGE with bolts (1).

Screw special tool 11 9 340 DEVICE into cylinder head.

Pretension timing chain with special tool 00 9 250 to 0.6 Nm.

Secure both central bolts of adjustment units to camshafts with special tool 00 9 120 .

Tightening torque: 11 36 1AZ .

Fig 9: Identifying Special Tools (11 4 280, 11 4 290, 11 9 340 And 00 9 250)

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Assemble engine.