Adjust the timing of the camshaft
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW X2, 2022 BMW X2, 2021 BMW X2, 2020 BMW X2, and 2019 BMW X2. However, it is still accessible from the selected car via links, so may be relevant.
Preliminary work
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE REAR COWL PANEL .
- Refer to BLOCKING THE CRANKSHAFT IN HE TDC FIRING POSITION OF CYLINDER 1 .
- Refer to DISCONNECTING CABLE FROM BATTERY EARTH LEAD .
- Refer to REMOVING E-BOX .
- Refer to REMOVING THE SYSTEM BATTERY .
- Refer to REMOVING BATTERY CARRIER .
- Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
- Refer to REMOVING THE OXYGEN SENSOR MONITOR .
- Refer to REMOVING HEAT SHIELD AT UPPER EXHAUST TURBOCHARGER .
- Refer to REMOVING CHAIN TENSIONER .
Precondition
Crankshaft is disconnected and blocked. Engine in TDC firing position at cylinder 1.
- Keep a 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 | Basic carrier screws on cylinder head |
| 5 | Screw gauge on basic carrier |
- Use the setting gauge 0.7° (1) from the special tool kit 2 456 372 to adjust the intake camshaft.
- Use the setting gauge 0.5° (2) from the special tool kit 2 456 372
to adjust the exhaust camshaft.
- To release the VANOS central valve (1), use the reversible ratchet (2) from the special tool 0 496 855 with the special tool 2 450 487 .
- Position the basic carrier (1) from the set of special tools 2 456 372 on the cylinder head.
- Tighten the screws (2) from special tool set 2 456 372 .
TIGHTENING TORQUE SPECIFICATIONS
| Basic carrier to cylinder head | ||
| M6 | Tightening torque | 8 Nm |
- Position the setting gauge 0.7° (1) from the special tool kit 2 456 372 between the basic carrier (2) from the set of special tools 2 456 372 and the intake camshaft (3).
- If necessary, crank the engine at the crankshaft using special tool 0 493 380 (11 6 480) .
- Tighten the screws (4) from special tool set 2 456 372 .
TIGHTENING TORQUE SPECIFICATIONS
| Test gauge to basic carrier | ||
| M6 | Tightening torque | 8 Nm |
- Release the VANOS central valve (5) of the intake adjuster.
- Position the setting gauge 0.5° (1) from the special tool kit 2 456 372 between the basic carrier (2) from the set of special tools 2 456 372 and the exhaust camshaft (3).
- If necessary, crank the engine at the crankshaft using special tool 0 493 380 (11 6 480) .
- Tighten the screws (4) from special tool set 2 456 372 .
TIGHTENING TORQUE SPECIFICATIONS
| Test gauge to basic carrier | ||
| M6 | Tightening torque | 8 Nm |
- Release the VANOS central valve (5) of the exhaust camshaft adjuster.
- Turn the intake camshaft (E) and exhaust camshaft (A) to the correct position, so that the marks (1) can 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.