BMW N54 Bearing Ledge Hook Ring Diag & Repair! SOLVED VANOS & Camshaft Codes On Single Turbo 335i 4K

This video shows how to properly diagnose and replace failed bearing ledges and rectangrings (also known as hook rings) on a BMW N54. The hook rings were originally made of metal (prior to being changed over to teflon by 01/2010). The metal hook rings dig into the aluminum bearing ledges and cause low oil pressure to the VANOS phasers which leads to a large assortment of VANOS/Camshaft faults. Below you will find lists containing all the Parts, Tools, and Torque Specs used in this video as well as time-stamps for key job moments. We HIGHLY RECOMMEND watching the entire video rather than skimming through as there is vital information throughout the process.

If you have any questions regarding this job, ask us in the comments below and we'll happily answer them as soon as possible.

This video contains the information on all vehicles affected by this issue, but is specifically done on an a 2008 Single Turbo 335i with an n54. The following list shows all of the vehicles that may be affected by this issue.

E82 and E88 with N51, N52K and N54 engines produced from 1/2008 to 1/2010
E90 and E91 with N52 engine produced from 3/2005 to 6/2006
E90, E91, E92 and E93 with N51, N52K and N54 engines produced from 7/2006 to 1/2010
E85 and E86 with N52 engine produced from 1/2006 to 1/2010
E83 with N52K engine produced from 9/2006 to 1/2010
E60 and E61 with N52, N52K and N54 engines produced from 3/2005 to 1/2010
E70 with N52K engine produced from 10/2006 to 1/2010
E71 with N54 engine produced from 1/2008 to 1/2010
F01 and F02 with N54 engine from start of production to 1/2010

Although there are multiple service bulletins with multiple supersessions for this issue, below is a link to the service bulletin we reference whenever running into this issue.

https://static.nhtsa.gov/odi/tsbs/201...

This video is for entertainment purposes only. We are not responsible for any damage to your vehicle.

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PARTS LIST

- Exhaust VANOS Phaser - 11367540348 (Optional)
- Intake VANOS Phaser - 11367540347 (Optional)
- Intake Bearing Ledge - 11127550913
- Exhaust Bearing Ledge - 11127531224
- Rectangrings (2 per cam) x4 - 11317587757
- Bearing Ledge Bolts x29 - 11127535024
(14 Intake/15 Exhaust)
- VANOS Actuator Bolts x2 - 11367524954
- VANOS Check Valves (Optional) x2 - 11367541692
- Chain Tensioner - 11317584723
- Valve Cover Gasket Set - 11127565286
- VANOS Solenoids (Optional) x2 - 11367585425
- Oil Change Kit

TORQUE SPECS

- Bearing Ledge Bolts - 8nm + 60°
- Chain Pretensioner (Dummy) - .6nm
- Chain Tensioner (Actual) 55nm
- VANOS Sprocket Bolts - 20nm + 180°
- Chain Guide Rail to Exhaust Cam Ledge - 8.5nm
- VANOS Check Valves - 15nm
- Valve Cover Gasket - 8.5nm
- Fuel Lines To Injectors - 23nm
- Fuel Rail To Fuel Line From Fuel Pump - 30nm
- Fuel Rail To Cylinder Head - 13nm

TOOLS

- Scan Tool
- N54 Timing Tool Set
- 1/4” Metric Sockets
- 3/8” Metric Sockets
- Metric Wrenches
- ETorx Sockets
- Pick Tools
- 22mm 1/2” Socket
- 1/4”, 3/8” Torx Sockets
- 1/4”, 3/8”, 1/2” Ratchets
- 1/4”, 3/8” Extensions & Adapters
- 27mm Socket
- 3/8” Torque Wrench
- 3/8” Metric Crows Feet
- Assembly Lube
- Clean Oil
- Flashlights
- Rags
- Gloves

KEY MOMENTS

- 0:00-1:36 Intro
- 1:36-3:41 Job Description
- 3:41-4:15 Engine Codes
- 4:15-5:04 Tear Down
- 5:04-7:21 Hook Ring Failure Confirmation
- 7:21-7:54 Timing Tools
- 7:54-11:08 Cam/Ledge Removal & Inspection
- 11:08-12:55 Priming Camshaft Phasers
- 12:55-19:28 Engine Internal Reassembly
- 19:28-20:17 Engine Priming
- 20:17-22:41 VANOS Solenoid Failure
- 22:41-23:51 After Repair
- 23:51-24:21 Outro