REP-TAT-P-1131-14 Adjusting the timing of the camshafts

Install a new chain tensioner

Replace sealing ring (1).
Parts : Sealing ring

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Tighten chain tensioner using the illustrated tool.

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Fit the chain tensioner from the top and hand tighten.
Bend the wheel arch cover slightly to the side.
Tighten chain tensioner (1) from below.

TIGHTENING TORQUES SPECIFICATION

Chain tensioner to cylinder head
Chain tensioner piston M22x1.5	Joining torque	20 Nm
Chain tensioner piston M22x1.5	Angle of rotation	30°

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Overview of the set of special tools 2 358 122 :

Number	Description
1	Basic carrier
2	Basic carrier screws on cylinder head
3	Gauge to fix exhaust camshaft
4	Gauge to fix intake camshaft
5	Screw gauge on basic carrier

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To release the central valve (1) use the reversible ratchet (2) from the special tool 0 496 855 with the special tool 2 450 487 .

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To release the central valve (1), use the special tool 0 496 855.

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Position the basic carrier from the set of special tools 2 358 122 on the cylinder head.
If necessary, crank the engine at the crankshaft using special tool 0 493 380 (11 6 480) .
Position the gauge to secure the intake camshaft on the intake camshaft and secure it to the basic carrier using the screws.
Release the VANOS central valve of the intake adjuster (1) with special tool 0 496 855 or 2 450 487 .

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If necessary, crank the engine at the crankshaft using special tool 0 493 380 (11 6 480) .
Position the gauge to secure the exhaust camshaft on the exhaust camshaft and secure it to the basic carrier using the screws.
Release VANOS central valve of the exhaust camshaft adjuster (1) with the special tool 0 496 855 or 2 450 487 .

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Rotate both camshafts to the correct position so that the marking (1) of the exhaust camshaft and the marking (2) of the intake camshaft can be read from the top.

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The center of the three flat areas (1) must point up on both camshafts.

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Position gauge (3) with the recess on the exhaust camshaft and fix with the screws (5) on the basic carrier (1).
Position gauge (4) with the recess on the intake camshaft and fix with the screws (5) on the basic carrier (1).

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To tighten the central valve (1), use the reversible ratchet (2) from the special tool 0 496 855 with special tool 2 450 487 .

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To tighten the central valve (1), use special tool 0 496 855.

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Tighten the VANOS central valve of the intake adjuster (1) with special tool 0 496 855 or 2 450 487 .

TIGHTENING TORQUES SPECIFICATION

VANOS central valve to camshaft
M12 x 1	1. Joining torque	30 Nm
	2. Joining torque	50 Nm
	3. Angle of rotation	65°
M21 x 1	1. Joining torque	10 Nm
	2. Joining torque	30 Nm
	3. Joining torque	50 Nm
	4. Angle of rotation	28°
M22 x 1	1. Joining torque	30 Nm
	2. Joining torque	50 Nm
	3. Angle of rotation	28°

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Tighten the VANOS central valve of the exhaust camshaft adjuster (1) with special tool 0 496 855 or 2 450 487 .

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TIGHTENING TORQUES SPECIFICATION

VANOS central valve to camshaft
M12 x 1	1. Joining torque	30 Nm
	2. Joining torque	50 Nm
	3. Angle of rotation	65°
M21 x 1	1. Joining torque	10 Nm
	2. Joining torque	30 Nm
	3. Joining torque	50 Nm
	4. Angle of rotation	28°
M22 x 1	1. Joining torque	30 Nm
	2. Joining torque	50 Nm
	3. Angle of rotation	28°