11 31 051 Replacing timing chain (N52K)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. 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: Fastener And Removal Direction

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Rotate crankshaft at central bolt into TDC position.

Slide special tool 11 0 300 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: Special Tool (11 0 300)

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IMPORTANT: Do not remove special tool 11 0 300 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).

For tightening torque refer to 11 21 1AZ in 21 CRANKSHAFT WITH BEARINGS .

Remove hub towards front.

Fig 3: Special Tool (11 9 280) And Central Bolt

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Open plug (1).

For tightening torque refer to 11 31 7AZ in 11 31 CAMSHAFT .

Fig 4: Plug

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Open plug (1).

For tightening torque refer to 11 11 7AZ in 11 11 CRANKCASE .

Installation:

Replace aluminium screws.

Fig 5: Plug

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

For tightening torque refer to 11 31 5AZ in 11 31 CAMSHAFT .

Fig 6: Bearing Pin

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

For tightening torque refer to 11 31 4AZ in 11 31 CAMSHAFT .

Fig 7: Crankcase Bearing Pin

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IMPORTANT: Install special tool 11 4 280 to release the central bolts on the intake 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 intake camshaft.

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

Do not remove special tool 11 4 280.

Fig 8: Bolts, Special Tools (11 4 280), (11 4 281) And (11 4 282)

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Remove Intake And Exhaust Adjustment Unit.

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

For tightening torque refer to 11 31 3AZ in 11 31 CAMSHAFT .

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

Fig 9: Timing Chain Module 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: 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: Timing Chain, Sprocket Wheel And Chain Guide

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Install hub with central bolt.

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

Fig 12: Special Tool (11 5 200) And Hub 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.

For tightening torque refer to 11 21 1AZ in 21 CRANKSHAFT WITH BEARINGS .

Mark central bolt and hub with paint.

Fig 13: Special Tools (11 9 280), (11 5 200). 11 4 360) And (11 0 300)

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Mark special tools with colored line (1).

See Fig 14.

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.

For tightening torque refer to 11 21 1AZ in 21 CRANKSHAFT WITH BEARINGS .

Fig 14: Special Tools With Colored Line

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Tighten central bolt with a second person helping.

For tightening torque refer to 11 21 1AZ in 21 CRANKSHAFT WITH BEARINGS .

Install Intake And Exhaust Adjustment Units .

Install Chain Tensioner .

Fig 15: Identifying Special Tool (11 9 280), (11 5 200) And (11 0 300)

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Crank engine twice.

Check Timing.

If necessary, adjust Valve Timing.

Assemble engine.