11 31 005 Checking camshaft timing (B48AO0)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

2 288 380
11 6 480
2 358 122

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .
Remove SPARK PLUGS .
Remove WHEEL ARCH COVER .

IMPORTANT: Risk of damage to engine.
Adherence to these instructions is mandatory!
If the crankshaft is disconnected properly, it is not possible to turn the engine forwards or backwards on the vibration damper!

Dimension (Y) = 66 mm.

Insert the special tool 2 288 380 up to dimension (Y) into the dowel hole.

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Special tool 2 288 380 correctly positioned.

The engine is located at the first cylinder at top dead center.

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Special tool 2 288 380 incorrectly positioned.

The TDC setting of the first cylinder has not been achieved.

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Crank engine with special tool 11 6 480 to TDC firing position of cylinder 1.

IMPORTANT: Do not crank engine in reverse direction.

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Remove protective cap (1) on oil sump.

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Crank engine at central bolt with special tool 11 6 480.

Block crankshaft in cylinder 1 TDC firing position with special tool 2 288 380.

The markings (1) on the intake and exhaust camshafts can be read from above.

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The flat sections (1) on the intake and exhaust camshafts point upwards.

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The cam on the exhaust camshaft (A) on the first cylinder points obliquely inwards to the right.

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The cam on the intake camshaft (E) on the first cylinder points obliquely to the left.

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NOTE: The special tool 2 358 122 consists of multiple parts.

Basic carrier
Basic carrier screws on cylinder head
Gauge to fix exhaust camshaft
Gauge to fix intake camshaft
Gauge screws on basic carrier

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Secure basic carrier (1) by screws (2) on cylinder head.

Position gauge (3) with recess on mounting flats of exhaust camshaft.

Secure basic carrier (3) by screws (5) on basic carrier.

Position gauge (4) with recess on mounting flats of intake camshaft.

Secure gauge (4) by screws (5) on basic carrier.

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If necessary, adjust VALVE TIMING .

Required follow-up work:

Remove all special tools.
Install SPARK PLUGS .
Install CYLINDER HEAD COVER .
Install front right WHEEL ARCH COVER .