Checking the timings of the camshaft
WARNING:
Working on 12 V electrical system
.
Risk of short circuits! Risk of fire!
Risk of short circuits! Risk of fire!
- Make sure that there is no charger connected to the jump start terminal in the engine compartment.
- Detach battery ground lead from battery.
- For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
Preliminary work
- Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
- Refer to REMOVING SUSPENSION CROSS-BRACE .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING THE UPPER FIREWALL COVER PANEL .
- Refer to IF INSTALLED: PARTIALLY REMOVING THE ENGINE VENTILATION LINE .
- Refer to REMOVING IGNITION COILS .
- Refer to REMOVING ALL SPARK PLUGS .
- Refer to REMOVING THE INTAKE MANIFOLD FOR INTAKE SILENCER HOUSING .
- Refer to REMOVING INTAKE SILENCER HOUSING .
- Refer to REMOVING THE REAR BULKHEAD .
- Refer to REMOVING CLEAN AIR PIPE .
- Refer to REMOVING BOTH ACTUATORS .
- Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE RAIL AND THE HIGH PRESSURE PUMP .
- Refer to REMOVING INJECTORS .
- Refer to REMOVING HIGH PRESSURE PUMP .
- Refer to REMOVING THE CYLINDER HEAD COVER .
- Refer to REMOVING FRONT RIGHT WHEEL .
- Refer to REMOVING THE FRONT RIGHT WHEEL ARCH COVER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Keep set of special tools 2 456 372 at hand:
| Number | Description |
|---|---|
| 1 | Basic carrier |
| 2 | Setting gauge for adjusting the intake camshaft |
| 3 | Setting gauge for adjusting the exhaust camshaft |
| 4 | Screws (basic carrier on cylinder head) |
| 5 | Screws (gauge on basic carrier) |
- Provide test gauges from the set of special tools 2 358 122 :
| Number | Description |
|---|---|
| 1 | Test gauges for fixing in place the intake camshaft |
| 2 | Test gauges for fixing in place the exhaust camshaft |
NOTE:
RISK OF DAMAGE
Damage to the engine .
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged .
Damage to the engine .
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged .
- Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
- With the special tool, turn the engine 0 493 380 (11 6 480) to the TDC firing position of cylinder 1 .
- Make sure the marks (1) on the intake camshaft (E) and the exhaust camshaft (A) are legible from above.
- Make sure the cam (1) on the exhaust camshaft on cylinder 1
is pointing slightly to the inside right at an angle.
- Make sure the cam (1) on the intake camshaft on cylinder 1
is pointing leftwards at an angle.
- Make sure that the flat sections (1) on the intake and exhaust camshafts point upwards.
- Position the basic carrier (1) from the set of special tools 2 456 372 on the cylinder head.
- Tighten screws (2) from the set of special tools 2 456 372 .
TIGHTENING TORQUE SPECIFICATIONS
| Basic carrier to cylinder head | ||
| M6 | Tightening torque | 8 Nm |
- Position the test gauge (2) from the set of special tools 2 358 122 between the intake camshaft and the basic carrier (1) from the set of special tools 2 456 372 .
- Position the test gauge (3) from the set of special tools 2 358 122 between the exhaust camshaft and the basic carrier (1) from the set of special tools 2 456 372 .
- Tighten the screws (arrows).
TIGHTENING TORQUE SPECIFICATIONS
| Test gauge to basic carrier | ||
| M6 | Tightening torque | 8 Nm |
- Thread out the sealing cap (1) and remove it.
- Version with manual transmission/double-clutch transmission (DKG):
Dimension (X) = 56 mm
Special tool 2 288 380 must be inserted up to dimension (X) into the dowel hole.
- Version with manual transmission/double-clutch transmission (DKG):
Special tool 2 288 380 incorrectly positioned.
TDC firing position of cylinder 1 not achieved.
- Version with manual transmission/double-clutch transmission (DKG):
Special tool 2 288 380 correctly positioned.
Engine in TDC firing position of cylinder 1.
- Version with automatic transmission:
Dimension (X) = 66 mm
Special tool 2 288 380 must be inserted up to dimension (X) into the dowel hole.
- Version with automatic transmission:
Special tool 2 288 380 incorrectly positioned.
TDC firing position of cylinder 1 not achieved.
- Version with automatic transmission:
Special tool 2 288 380 correctly positioned.
Engine is in TDC firing position of cylinder 1.
Follow-up work
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to PREPARING FOR THE INSTALLATION OF THE HIGH PRESSURE PUMP .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- Refer to INSTALLING BOTH ACTUATORS .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING INJECTORS .
- Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE RAIL AND THE HIGH-PRESSURE PUMP .
- Refer to INSTALLING ALL SPARK PLUGS .
- Refer to INSTALLING THE IGNITION COILS .
- Refer to PREPARING FOR THE INSTALLATION OF THE CLEAN AIR PIPE .
- Refer to INSTALLING CLEAN AIR PIPE .
- Refer to IF INSTALLED: PARTIALLY INSTALLING ENGINE VENTILATION LINE .
- Refer to INSTALLING THE REAR BULKHEAD .
- Refer to INSTALLING THE UPPER FIREWALL COVER PANEL .
- Refer to INSTALLING THE STRUT BRACE .
- Refer to INSTALLING THE FRONT RIGHT WHEEL ARCH COVER .
- Refer to INSTALLING THE FRONT RIGHT WHEEL .
- Refer to INSTALLING THE FRONT UNDERBODY PROTECTION .
- Refer to CONNECTING THE BATTERY EARTH LEAD .
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to CHECKING ENGINE OIL LEVEL .