WHEN TO REPLACE TIMING CHAIN ON BMW N51 N52 N53 ENGINE E90 E91 E92 E93 E60 E61 E70 X3 X5 E81 E82 E87 - YouTube
A-Premium Engine Timing Chain Kit Compatible with BMW 323i 325i 325xi 328i 328xi 330i 330xi 335i 335is X5 525i 525xi 528i 530i 530xi 535i 5-PC Set : Amazon.co.uk: Automotive
E70 X5 35d M57N2 Broken Timing Chain - YouTube
BMW to replace faulty timing chain in 2008-2014 vehicles
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Valve Stem Seal Replacement and Timing Chain Job in E70 BMW X5 N63 Engine - Car Repair, & Performance | Fluid MotorUnion | 2108 W. Ferry Rd. Unit 102 Naperville, IL
Detailed video how to replace BMW timing chain guides, (m62tu) not a time lapse video but how to. - YouTube
F25 Timing Chain (with photos) - XBimmers | BMW X3 Forum