Tightening the VANOS central valve of the exhaust camshaft adjuster
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.
- To tighten VANOS central valve (1)
, use reversible ratchet (2)
from special tool 0 496 855
with special tool 2 450 487
.
- Tighten VANOS central valve (1) of the exhaust camshaft adjuster.
TIGHTENING TORQUE SPECIFICATIONS
| VANOS central valve to camshaft | ||
|---|---|---|
| M21 | VANOS central valve on the thread and on the contact surface must be coated with engine oil. 1. Tightening torque |
50 Nm |
| 2. Tightening torque | 115 Nm | |
| M22 | VANOS central valve on the thread and on the contact surface must be coated with engine oil. 1. Tightening torque |
50 Nm |
| 2. Tightening torque | 140 Nm | |