11 31 505 Adjusting camshaft timing (N54, N54T)

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: Risk of damage!
To open the central bolt at the camshaft, grip hexagon head on rear of camshaft.

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER

Remove fastener (1) in direction of arrow.

Installation note:

Install fastener (1) with bore facing outwards.

Fig 1: Removing Camshaft Timing Fastener

G04751152

Rotate crankshaft at central bolt into TDC setting.

Slide in special tool 11 0 300 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.

Fig 2: Blocking Crankshaft Using Special Tool (11 0 300)

G04754924

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

Fit special tool 11 4 283 with screws (1).

Fit special tool 11 4 281 on special tool 11 4 283 .

IMPORTANT: If special tool 11 4 281 cannot be installed, the camshaft must be rotated at the hexagon head at the rear.

Fig 3: Installing Special Tool (11 4 283) Onto Camshaft Timing

G04754926

With cylinder No. 1 in ignition TDC position, cams of exhaust camshaft (2) and intake camshaft (1) at 6th cylinder point downwards at an angle.

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

Fig 4: Identifying Exhaust And Intake Camshaft Cams Alignment (N54, N54T)

G04754925

Release central bolt (1) of exhaust camshaft.

Installation note:

Replace screw (1).

Tightening torque 11 36 1AZ .

Release central bolt (2) of inlet camshaft.

Installation note:

Replace screw (2).

Fig 5: Identifying Exhaust And Inlet Camshaft Central Bolts

G04754984

Tightening torque 11 36 1AZ .

Rotate increment wheels until retaining pins on special tool 11 8 520 match up.

Push special tool 11 8 520 onto cylinder head.

Secure special tool 11 8 520 with bolts (1 and 2).

NOTE: Bolts M6 x 45 (1 and 2) with captive washer.

Fig 6: Securing Special Tool (11 8 520) With Bolts

G04754985

REMOVE CHAIN TENSIONER (1).

Screw special tool 11 9 340 into cylinder head.

Pre-tension timing chain with special tool 00 9 250 to 0.6 Nm .

Tighten central bolts (2 and 3) with special tool 00 9 120 .

Tightening torque 11 36 1AZ .

Fig 7: Identifying Chain Tensioner And Central Bolts

G04754986

Remove all special tools.

Crank engine on the central bolt twice in the direction of engine rotation and check the TIMING .

Assemble engine.