11 31 051 Replacing timing chain (N52K)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 140
11 0 300
11 4 280
11 4 281
11 4 282
11 4 283
11 4 360
11 4 362
11 5 200
11 9 280

Necessary preliminary tasks:

Remove fastener (1) in direction of arrow.

Installation:

Install fastener (1) with bore facing outwards.

Fig 1: Identifying Fastener

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Rotate crankshaft at central bolt into TDC position.

Slide special tool 110300 in direction of arrow into special tool bore and secure crankshaft.

IMPORTANT: On vehicles with optional extra SA205 (automatic transmission), there is a large bore for the TDC position shortly before the special tool bore. This bore can be confused with the special tool bore.

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

Fig 2: Identifying Special Tool 11 0 300

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IMPORTANT: Do not remove special tool 110300 to release central bolt (1).
Employ a second person for gripping when releasing central bolt (1).

Screw special tool 11 9 280 onto hub of vibration damper.

Release central bolt (1).

Tightening torque 11 21 1AZ .

Remove hub towards front.

Fig 3: Identifying Central Bolt And Special Tool 11 9 280

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Open plug (1).

Tightening torque 11 31 7AZ .

Fig 4: Identifying Plug

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Open plug (1).

Tightening torque 11 11 7AZ .

Installation:

Replace aluminum screws.

Fig 5: Identifying Plug

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Release bearing pin (1) from timing chain module on cylinder head.

Tightening torque 11 31 5AZ .

Fig 6: Identifying Bearing Pin

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Release bearing pin (1) from timing chain module on crankcase.

Tightening torque 11 31 4AZ .

Fig 7: Identifying Bearing Pin

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IMPORTANT: Install special tool 11 4 280 to release the central bolts on the inlet and exhaust adjustment units.

Secure special tool 11 4 283 to cylinder head with bolts (1).

NOTE: Fit special tool 11 4 282 underneath on side of inlet camshaft.

Mount special tool 11 4 281 on inlet and exhaust camshafts.

Do not remove special tool 11 4 280 .

Fig 8: Securing Special Tool 11 4 283 To Cylinder Head With Bolts

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Remove inlet and exhaust adjustment unit.

Release bolts (1) from timing chain module on cylinder head.

Tightening torque 11 31 3AZ .

Remove chain module with timing chain and sprocket wheel upwards in direction of arrow.

Fig 9: Identifying Bolts

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IMPORTANT: Note installation direction of sprocket wheel (2).
Collar (see arrow) on sprocket wheel (2) points to engine.
Incorrect assembly will result in engine damage.

Fig 10: Identifying Sprocket Wheel

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Pull timing chain (1) upwards until sprocket wheel (2) engages chain guide (3).

Install timing chain (1) and sprocket wheel (2) in this position.

Installation:

Always hold timing chain (1) under tension. Timing chain (1) may jam on chain guide (3).

Fig 11: Identifying Timing Chain, Chain Guide And Sprocket Wheel

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Install hub with central bolt.

Tighten down special tool 11 5 200 with screws (1) to hub.

Fig 12: Identifying Screws

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Remove tensioner for drive belt.

Screw in special tool 11 4 362 from special tool kit 11 4 360 .

Mount special tool 11 9 280 on 11 5 200 .

Support special tool 11 9 280 on special tool 11 4 362 .

Special tool 11 0 300 secures crankshaft.

Tighten central bolt to jointing torque.

Tightening torque 11 21 1AZ .

Mark central bolt and hub with paint.

Fig 13: Identifying Special Tools

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Mark special tools with colored line (1).

See picture.

IMPORTANT: Do not remove the special tool while tightening the central bolt to torsion angle.
Risk of damage!

If necessary, tighten central bolt to torsion angle with special tool 00 9 140 .

Tightening torque 11 21 1AZ .

Fig 14: Identifying Special Tools With Colored Line

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Tighten central bolt with a second person helping.

Tightening torque 11 21 1AZ .

Install inlet and exhaust adjustment units.

Install CHAIN TENSIONER .

Fig 15: Identifying Special Tools

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Crank engine twice.

Check TIMING .

If necessary, adjust VALVE TIMING .

Assemble engine.