11 31 005 Checking camshaft timing (PHEV)

Special tools required:

WARNING: High-voltage system - danger to life

Observe the SAFETY INFORMATION for working with electric vehicles.

Necessary preliminary tasks:

Remove TOPPING CLEAN AIR PIPE .
Remove SPARK PLUGS .
Remove CYLINDER HEAD COVER .
Remove underbody protection at front and rear. See REMOVING UNDERBODY PROTECTION (FRONT) and REMOVING REAR ENGINE UNDERCOVER .

Remove seal plug (1).

Rotate crankshaft at central bolt into TDC setting.

Slide in special tool 2 219 548 into dowel hole and secure crankshaft.

Fig 1: Identifying Seal Plug And Special Tool (2 219 548)

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Remove seal plug (1) in direction of arrow using a screwdriver.

Fig 2: Removing Seal Plug Using Screwdriver

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NOTE: Special tool 2 219 548 can only be fixed to the flywheel (1) in the position specified (see arrow).

Fig 3: Identifying Correct Position For Special Tool On Flywheel

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Installation note:

Coat special tool 2 219 548 with oil for simplifying disassembly and installation.

To secure crankshaft, insert special tool 2 219 548 in dowel hole.

Fig 4: Inserting Special Tool (2 219 548) In Dowel Hole

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IMPORTANT: If the flywheel is secured in the correct dowel hole with special tool 2 219 548 , the engine can no longer be moved at the central bolt.

Fig 5: Identifying Special Tool (2 219 548)

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NOTE: Special tool: 2 212 831 .

Use special tool (1) to attach special tool (4) to the cylinder head.

Fig 6: Attaching Special Tool To Cylinder Head

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Attach special tool (1) to cylinder head using a screw (2).

Fig 7: Attaching Special Tool To Cylinder Head

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Position special tool (3) without recess at mounting flats of the exhaust camshaft.

The cams of the exhaust camshaft point diagonally upwards when in TDC firing position at cylinder 1.

Fig 8: Identifying Exhaust Camshaft Position With Cylinder 1 At TDC

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Position the special tool (2) with recess at the mounting flats of the intake camshaft.

With 1st cylinder in TDC firing position, cams of intake camshaft (1) point upward at an angle.

Fig 9: Positioning Tracing Gauge On Mounting Flats Of Intake Camshaft

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Fit gauge for the camshaft sensor wheel (1) to the cylinder head.

Check setting of the camshaft sensor wheels.

Special tool 2 212 830 .

Fig 10: Identifying Central Bolts

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Position the camshaft sensor wheel of the exhaust camshaft in the direction of the arrow using the pin (1).

Position the camshaft sensor wheel of the intake camshaft in the direction of the arrow using the pin (2).

Installation note:

If the camshaft sensor wheels have been readjusted, the central bolts must be loosened.

Fig 11: Identifying Retaining Pins

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NOTE: If special tool 2 219 548 cannot be removed due to stiff movement, then it can be removed by turning and pulling with the aid of half-round long-nose pliers (angled) (1).

Fig 12: Removing Special Tool (2 219 548)

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If necessary, adjust valve timing.

Assemble engine.