N42/N46 Timing: VANOS locked vs unlocked

Exhaust VANOS adjustment unit is locked, while the intake VANOS adjustment unit is unlocked on a BMW N42/N46 engine.

When the locking pin is engaged, the wire drops to about 15mm, when the locking pin is not engaged it drops only to 10mm.

Make sure VANOS units are locked before doing the timing:
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