The timing chain kit for the Mercedes A-Class W177 M282 engine covers the single-row timing chain, upper and lower guide rails, tensioner and all retaining hardware. M282 timing chain rattle at cold start is a known issue — this kit resolves it permanently.

1. 1
2. Remove cam cover and front engine covers
3. 2
4. Set TDC
5. 3
6. Lock cam sprockets with locking tool
7. 4
8. Remove tensioner via access hole
9. 5
10. Remove guides
11. 6
12. Remove chain
13. 7
14. Install new chain maintaining TDC marks
15. 8
16. Install new guides and tensioner
17. 9
18. Verify all timing marks
19. 10
20. Reassemble.