Checking the timings of the camshaft
CAUTION:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
WARNING:
Working on fuel system.
Risk of fire! Danger of explosion!
Risk of fire! Danger of explosion!
- When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
- Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
- No fire, sparks, open flames or smoking.
CAUTION:
On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!
Injury hazard!
- Wear suitable personal protective equipment.
- Before performing any installation work, allow cooling system to cool down to less than 40°C.
- Note warnings on cylinder head cover.
NOTE:
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Preliminary work
- Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
- Refer to DEACTIVATING ELECTRICAL SYSTEM .
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
- Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING WINDSHIELD PANEL COVER .
- Refer to REMOVING THE CENTER COWL UPPER PART .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to REMOVING THE CENTER FIREWALL LOWER PART .
- Refer to REMOVING THE CLEAN AIR PIPE WITH THE RESONATOR .
- Refer to REMOVING THE FRONT ACOUSTIC COVER FOR THE ENGINE .
- Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
- Refer to REMOVING ALL IGNITION COILS .
- Refer to REMOVING ALL SPARK PLUGS .
- Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
- Refer to REMOVING FUEL DELIVERY LINE .
- Refer to REMOVING THE RAIL WITH INJECTORS .
- Refer to REMOVING HIGH PRESSURE PUMP .
- Refer to REMOVING BOTH ACTUATORS .
- Refer to REMOVING THE CYLINDER HEAD COVER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THRUST FIELD .
- Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
- Refer to REMOVING REAR UNDERBODY PROTECTION .
- Refer to RELEASING THE EPS CONNECTOR .
- 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 of the basic carrier on the cylinder head |
| 5 | Screws of the gauge on the basic carrier |
- Check the test gauges from the set of special tools 2 358 122
for completeness:
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.
- Turn the engine in the arrow direction to the TDC firing position of cylinder 1 using special tool 0 493 380 (11 6 480) .
- Ensure that marks (1) on intake camshaft (E) and exhaust camshaft (A) can be read from above.
- Ensure that the cam (1) on the exhaust camshaft on cylinder 1 points to the inside right at a slight angle.
- Ensure that the cam (1) on the intake camshaft on cylinder 1
points to the left at an angle.
- Ensure that flattened areas (1) on the intake camshaft and exhaust camshaft point upwards.
- Position the basic carrier (1) from the set of special tools 2 456 372 on the cylinder head.
- Tighten the screws (1) from the set of special tools 2 456 372 on the basic carrier (2).
TIGHTENING TORQUES SPECIFICATION
| Basic carrier to cylinder head | ||
|---|---|---|
| M6 | Tightening torque | 8 Nm |
- Position the test gauge (1) from the set of special tools 2 358 122 between the intake camshaft and the basic carrier from the set of special tools 2 456 372 .
- Position the test gauge (2) from the set of special tools 2 358 122 between the exhaust camshaft and the basic carrier from the set of special tools 2 456 372 .
- Tighten screws (arrows).
TIGHTENING TORQUES SPECIFICATION
| Test gauge to basic carrier | ||
|---|---|---|
| M6 | Tightening torque | 8 Nm |
- Guide out and remove sealing cap (1).
- Vehicles with automatic transmission:
Dimension (X) = 66 mm
Special tool 2 288 380 must be inserted into the dowel hole up to dimension (X).
- Vehicles with automatic transmission:
The special tool 2 288 380 is incorrectly positioned.
TDC firing position of cylinder 1 not reached.
- Vehicles with automatic transmission:
The special tool 2 288 380 is correctly positioned.
Engine is in the TDC firing position of cylinder 1.
- Vehicles with manual gearbox:
Dimension (X) = 62 mm
Special tool 2 288 380 must be inserted into the dowel hole up to dimension (X).
- Vehicles with manual gearbox:
The special tool 2 288 380 is incorrectly positioned.
TDC firing position of cylinder 1 not reached.
- Vehicles with manual gearbox:
The special tool 2 288 380 is correctly positioned.
Engine is in the TDC firing position of cylinder 1.
Follow-up work
- Refer to CONNECTING THE EPS CONNECTOR .
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to INSTALLING BOTH ACTUATORS .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING THE RAIL WITH INJECTORS .
- Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
- Refer to INSTALLING FUEL DELIVERY LINE .
- Refer to INSTALLING ALL SPARK PLUGS .
- Refer to INSTALLING ALL IGNITION COILS .
- Refer to INSTALLING THE CYLINDER HEAD COVER ACOUSTIC COVER .
- Refer to INSTALLING THE ACOUSTIC COVER FOR THE ENGINE, FRONT .
- Refer to INSTALLING THE CLEAN AIR PIPE WITH THE RESONATOR .
- Refer to ACTIVATING ELECTRICAL SYSTEM .
- Refer to INSTALLING CENTER FIREWALL LOWER PART .
- Refer to INSTALLING ACOUSTIC COVER AT REAR .
- Refer to INSTALLING THE CENTER COWL UPPER PART .
- Refer to INSTALLING WINDSHIELD PANEL COVER .
- Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
- Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
- Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE REAR HOOD SEAL .
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
- Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
- Refer to INSTALLING THE STIFFENING PLATE .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to TAKING HOOD OUT OF THE SERVICE POSITION .