Adjusting the camshafts with the special tool
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
TECHNICAL INFORMATION
Alternative to the new special tool 2 471 127, the already present special tool 2 456 372 can be used in modified form.
Information on modification can be found in the additional information.
The modified special tool is upward compatible.
Alternative to the new special tool 2 471 127, the already present special tool 2 456 372 can be used in modified form.
Information on modification can be found in the additional information.
The modified special tool is upward compatible.
- Keep set of special tools 2 471 127
at hand:
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 - Use the 0.7° setting gauge (1) from the set of special tools 2 471 127 to adjust intake camshaft .
- Use the 0.5° setting gauge (2)
from the set of special tools 2 471 127
to adjust exhaust camshaft.
- Position the basic carrier (1)
from the set of special tools 2 471 127
on the cylinder head.
- Tighten the screws (1) from set of special tool 2 471 127 on the basic carrier (2)
.TIGHTENING TORQUE SPECIFICATIONS
Basic carrier to cylinder head M6 Tightening torque 8 Nm - Rotate the intake camshaft (E)
and the exhaust camshaft (A)
so that the marks (1)
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 the flattened areas (1)
on the intake camshaft and the exhaust camshaft are pointing upwards at an angle.
- Position the setting gauge 0.5° (2) from the set of special tools 2 471 127 between the exhaust camshaft and the basic carrier (1) from the set of special tools 2 471 127 .
- Position the setting gauge 0.7° (3) from the set of special tools 2 471 127 between the intake camshaft and the basic carrier (1) from the set of special tools 2 471 127 .
- Tighten down screws (4) .
TIGHTENING TORQUE SPECIFICATIONS
| Test gauge to basic carrier | ||
|---|---|---|
| M6 | Tightening torque | 8 Nm |