Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 POSTS
I believe it is VAS, valve advance system.
Oct 19, 2011 at 2:05 AM
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FIXITMR
AUTOMOTIVE REPAIR CONTRIBUTOR
9,990 POSTS
maybe it's a'B's? having to do with the brakes? just a thought.