Checking the timings of the camshaft
WARNING: This page is about a different car, the 2022 BMW X7, 2021 BMW X7, 2020 BMW X7, and 2019 BMW X7. However, it is still accessible from the selected car via links, so may be relevant.
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.
NOTE:
TECHNICAL INFORMATION
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN
Preliminary work
- Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
- Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING REAR HOOD SEAL .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING THE CENTER COWL UPPER PART .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to REMOVING THE STRUT BRACE AT THE LEFT AND RIGHT .
- Refer to REMOVING THE RIGHT TENSION STRUT ON THE SHOCK TOWER .
- Refer to REMOVING ALL IGNITION COILS .
- Refer to REMOVING ALL SPARK PLUGS .
- Refer to REMOVING THE INTAKE FILTER HOUSING (TENSION STRUT ON SHOCK TOWER REMOVED) .
- Refer to REMOVING CLEAN AIR PIPE AND RESONATOR .
- Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
- Refer to REMOVING FUEL DELIVERY LINE .
- Refer to REMOVING HIGH PRESSURE PUMP .
- Refer to REMOVING THE HIGH-PRESSURE RAIL WITH INJECTORS OF CYLINDERS 1 TO 3 .
- Refer to REMOVING THE HIGH-PRESSURE RAIL WITH INJECTORS OF CYLINDERS 4 TO 6 .
- Refer to REMOVING BOTH ACTUATORS .
- Refer to REMOVING THE CYLINDER HEAD COVER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE STIFFENING PLATE .
- Get the set of special tools 2 456 372
ready.
Number Description 1 Basic carrier 2 Setting gauge 0.7° for adjusting the intake camshaft 3 Setting gauge 0.5° for adjusting the exhaust camshaft 4 Basic carrier screws on cylinder head 5 Screw 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 - Have the special tool 2 288 380
ready.
Number Description 1 Locating stud
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 markings (1) on the intake camshaft (E) and the exhaust camshaft (A) are able to be read 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 the flattened areas (1) on the intake camshaft and the exhaust camshaft are pointing upwards at an angle.
- 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 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 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.
Follow-up work
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to INSTALLING BOTH ACTUATORS .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 4 TO 6 .
- Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 1 TO 3 .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- 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 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 FRONT HOOD SEAL AT THE REAR .
- Refer to INSTALLING THE STRUT BRACE ON THE LEFT AND RIGHT .
- Refer to INSTALLING THE CLEAN AIR PIPE AND THE RESONATOR .
- Refer to INSTALLING THE INTAKE FILTER HOUSING (TENSION STRUT REMOVED ON SHOCK TOWER) .
- Refer to INSTALLING THE TENSION STRUT ON THE RIGHT SHOCK TOWER .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to INSTALLING THE STIFFENING PLATE .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to TAKING HOOD OUT OF THE SERVICE POSITION .