Mechanics

SUSPENSION AIR PUMP

2002 Mercedes Benz S430

Suspension problem
2002 Mercedes Benz S430 V8 Two Wheel Drive Automatic 91481 miles

What could cause the pump to stay on with the car turned off?
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Samauto
April 3, 2010.



Could be a stuck relay, a leak in the system, a height sensor telling it to stay on. Many different things. Your best bet would probably be to have the suspension system scanned to see if it has stored any fault codes that could eliminate the guess work.

Tiny
Jack42
Apr 5, 2010.