Timing chain failure (1M) - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Shed Buying Guide | BMW 1 Series (E87) - PistonHeads UK
Timing chain stretch in N46 engine - BMW 3-Series (E90 E92) Forum
BMW timing chain woes continue, BG Automotive reports | Auto Torque Magazine
Settlement for Defective Timing Chains and Engine Failure
BMW 1 Series Timing Chain: Replacement Interval & Symptoms
BMW 1-Series common problems (2004-2013) | Haynes Publishing