Timing chain guide rail for BMW E90/E91/E92/E93 LCI

Timing problems are well known for these models,
Remember to check your engine (chains, tensioners, sprockets, guides) to avoid breakage,

For E90 LCI & E91 LCI:
- 316 d N47 (E90 only)
- 316 d N47N
- 318 d N47 & N47N
- 320 d/xd N47 & N47N
- 325 d N57
- 330 d/xd N57

For E92 LCI & E93 LCI:
- 320 d N47N
- 320 xd N47N (E92 only)
- 325 d N57
- 330 d N57
- 330 xd N57 (E92 only) Located on the main timing chain (camshaft)