All parts › BMW M4 CSL › S58 engine › Timing chain
Timing chain
Part of S58 engine · about $620 to replace
What it is
Single roller chain from crank to both cams.
What it does
Keeps the camshafts in phase with the crank.
How it fails
Chain rattle on cold start is the tensioner; stretch triggers VANOS fault codes.
| Material | Roller chain, steel |
|---|---|
| Spec | Pitch 8 mm |
| 150 links | |
| stretch limit 0.5 % |
