Checking the timings of the camshaft
WARNING:
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 DISCONNECTING ALL BATTERY GROUND LEADS .
- 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 BULKHEAD 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 the 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:
TECHNICAL INFORMATION
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 0 493 380 (11 6 480)
, turn the engine in arrow direction
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 the screws (1) from special tool set 2 456 372 on the basic carrier (2).
TIGHTENING TORQUE 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 the screws (arrows).
TIGHTENING TORQUE 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 up to dimension (X) into the dowel hole.
- Vehicles with automatic transmission:
special tool 2 288 380 incorrectly positioned.
TDC firing position of cylinder 1 not achieved.
- Vehicles with automatic transmission:
special tool 2 288 380 correctly positioned.
Engine is in TDC firing position of cylinder 1.
- Vehicles with manual gearbox:
Dimension (X) = 62 mm
special tool 2 288 380 must be inserted up to dimension (X) into the dowel hole.
- Vehicles with manual gearbox:
special tool 2 288 380 incorrectly positioned.
TDC firing position of cylinder 1 not achieved.
- Vehicles with manual gearbox:
special tool 2 288 380 correctly positioned.
Engine is in 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 CONNECTING NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
- Refer to INSTALLING CENTER BULKHEAD 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 FRONT HOOD SEAL AT THE REAR .
- 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 .