Install all roller cam followers
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.
- Observe the classification of roller cam followers.
The classification in digits from 1 to 5 has been printed on the roller cam follower.
Classification Idle speed 1 Repair case - slow engine speed when idling 2 Installed as standard/Initial installation 3 Installed as standard/Initial installation 4 Installed as standard/Initial installation 5 Repair case - high engine speed when idling - Install the roller cam follower (1) on the intake side.
- Make sure that the roller cam follower (1) is correctly positioned on the hydraulic valve clearance compensating element (arrows) and the intake valves.
- Install the roller cam follower (1) on the exhaust side.
- Make sure that the roller cam follower (1) is positioned correctly on the hydraulic valve clearance compensating elements (arrows) and the exhaust valves.