BMW VANOS Masterclass - Tear down + why it fails with MR VANOS - E36 M3 Touring Ep 09 

As a BMW fan VANOS is something I'd heard of for a long time, mainly because they do like to fail, sometimes catastrophically! But truth be told I had no real idea how it actually worked.
I wanted to get my S50b32 unit refurbished, so invited Steve AKA MR VANOS down to share a slice of his knowledge. What Steve doesn't know about these engines probably isn't worth knowing, so it was great to have him disassemble the unit for me and discuss just how they work, and ultimately what causes them to fail.
Find out more about Steve's work at www.mrvanos.com
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00:00 - Intro
00:12 - Introduction
04:03 - Removing the VANOS
05:10 - VANOS Overview
06:36 - Broken Plastic Washer
07:33 - Solenoid Explanation
07:46 - VANOS Oil Process
09:17 - Modern VANOS Units
10:29 - VANOS Disassembly Begins
10:50 - Oil Pump Analysis
13:10 - Exhaust Cam Piston
13:50 - Solenoid Cover Removal
14:00 - Solenoid Analysis
17:00 - Solenoid Removal
17:45 - Solenoid Wear
19:08 - Broken Cover Bolts
21:18 - Upgraded Seals
23:10 - Intake Cam Piston
24:04 - Final Disassembly
24:25 - High Pressure Valve
25:39 - Fully Stripped Unit
25:50 - Oil Path
26:17 - VANOS Timing Control
26:44 - Oil Pump Wear
27:30 - Oil Change Importance
28:34 - Refurbishment Process
29:40 - Wear on my VANOS
30:50 - VANOS Rattle Explained
34:58 - S50 Head Removal
36:35 - Updated Oil Pump
37:44 - Valve Buckets & Clearances
40:10 - Valve Springs
42:08 - Throttle Body Balancing
43:34 - Head Removal
43:47 - Head Gasket Analysis
44:06 - Valve Analysis
44:40 - Block Analysis
45:15 - Piston Damage
46:12 - Cylinder Bore Analysis
48:15 - Timing Chain
49:59 - Outro
Intro Music:
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#M3Touring #VANOS #VANOSFailure

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