Amazon.com: HiSport Vanos Solenoid Valve 11367585425 - Oil Control Valve Compatible for Engine BMW 2.0L 2.5L 2.8L 3.0L, Replacement for BMW 1 Series M 135i 328i 335i 525i X3 X5 128i 328i
Variable Valve Vanos Timing Solenoid for BMW N12 N13 N14 N16 N18 & MINI Cooper | eBay
Decided to replace the Vanos Check Valve to Reduce Drain Back
VANOS Central Valve, BMW - F22, F3X, F10, X1/X3/X4/Z4 28i (N20/N26)
VANOS - Wikipedia
The basics of BMW VANOS variable valve timing system - BIMMERtips.com
OE Quality Engine Vanos Camshaft Solenoid Valve for BMW 1 3 5 Series N43 Petrol | eBay