11 31 005 Checking camshaft timing (N20)

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

Special tools required:

2 219 548
11 0 300
83 30 2 212 831
83 30 2 212 830

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .
Remove underbody protection
Remove SPARK PLUGS .

Remove seal plug (1) on the passenger's side.

Rotate crankshaft at central bolt into TDC setting.

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

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

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

Fig 2: Removing Seal Plug

NOTE: The special tool can only be affixed to the specified position of the flywheel (1) 11 0 300 (see arrow).

Fig 3: Locating Automatic Transmission Vehicles Position On Flywheel

Installation note:

Wet special tool 2 219 548 with oil for easier installation/dismantling.

Secure crankshaft with special tool 2 219 548 via the dowel hole.

Fig 4: Identifying Special Tool (2 219 548)

NOTE: Order number for special tool: 83 30 2 212 831

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

Fig 5: Attaching Special Tool To Cylinder Head

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

Fig 6: Attaching Special Tool To Cylinder Head

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 7: Locating Exhaust Camshaft Cams

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 8: Locating Intake Camshaft Flats

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

Check setting of the camshaft sensor wheels.

Order number:83 30 2 212 830

Fig 9: Identifying Camshaft Adjusters Central Bolts

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 10: Aligning Retaining Pin With Setting Gauge

NOTE: If the special tool 2 219 548 cannot be removed due to stiff movement, then it can be bent with the aid of a flat round pliers and removed by turning and pulling.

Fig 11: Removing Special Tool (2 219 548)

If necessary, adjust VALVE TIMING .

Assemble engine.