Removing Camshaft Actuator

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

NOTE: Timing not set correctly

Risk of engine damage
Rough running engine
Loss of engine power

→ Do not use force when fitting the staking tool.
→ Make sure that the gap is equal on both sides.
→ When inserting the staking tools, do not use force to turn the camshafts against any resistance.
→ The engine must be exactly at top dead centre.
→ The opposite cylinder must be at ignition TDC.

NOTE: Dirt and contamination

Risk of damage to units or components

→ Protect components from dirt and contamination.
→ Clean or replace dirty components.

Information

Do not clean the camshaft controller in a parts washer.
Only the outside can be cleaned using a clean, lint-free cloth.

Turn engine clockwise to ignition TDC of cylinder 1. Check markings on crankshaft and actuators.

Secure camshafts.

2.1 Carefully lever out stoppers on the cylinder head cover using a screwdriver.

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Stoppers on cylinder head cover

2.2 Screw adapter -1- into the camshaft housing and tighten to 9 Nm .

Cylinder bank 1: T40331/2

Cylinder bank 2: T40331/3

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Adapter on camshaft housing (similar to illustration)

Information

It may be necessary for a second mechanic to carefully position the camshafts at the actuators using > T90001 - counter-hold tool and > VAS 261 001 - ring spanner socket, a/f 41 .

2.3 Insert > T40331 - camshaft clamp .

2.3.1 Cylinder bank 1:

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Camshaft clamps on cylinder bank 1

1	T40331/1 - The letter "A" must be facing you
2	T40331/9
3	T40331/2
4	T40331/4 - Outlet camshaft
5	T40331/6 - Intake camshaft

2.3.2 Cylinder bank 2:

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Camshaft clamps on cylinder bank 2

1	T40331/1 - The letter "B" must be facing you
2	T40331/3
3	T40331/9
4	T40331/10 - Outlet camshaft
5	T40331/8 - Intake camshaft

Secure the crankshaft.
1. 3.1 Unscrew stoppers on the crankcase.
2. 3.2 Secure the crankshaft using > T40069 - locking pin .
Information

The > T90001 - counterhold tool can only be inserted at one position. The markings -1 and 2- must line up.

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T90001 counterhold tool on actuator

Information

Never use the camshaft clamps -T40331- as a counterhold tool for loosening and tightening the camshaft controllers.
Loosen and unscrew central valves -1- .
1. 4.1 Fit > T90001 - counter-hold tool-2- using > VAS 261 001 - ring spanner insert, a/f 41-3- on the actuators. Loosen central valves -1- using > T90000 - socket-wrench insert E24 .
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Camshaft actuator
Fix chain tensioner in place.
1. 5.1 Press the chain tensioner piston back fully. To do this, actuate the tensioning rail by hand.
2. 5.2 Fix the chain tensioner -1- in place using > T03006 - locking pin-3- .
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Securing chain tensioner
Unscrew central valves and remove actuators from camshafts and from the control chain.
Secure the control chain to prevent it from falling down.