How would one go about doing this?

 

raise the car, turn off engine and listen to each wheel housing.

air leak can be heard.

which side is going down?

 

well its a car at the dealership i work for. some background info...im 16, work for a jaguar dealership...we have an 01 S500 and i drove it home tonite cuz my boss was acting strange and let me..I noticed the pump runs every 15 mins...and the car sometimes can be noticeably moving. i havent taken the time to look for the leak or notice any leaning...but my father is considering this car only because it is so amazingly clean but i dont want him buying a 70k miled S500 only to have his suspension fail. Id rather him go out and get a 03 S430 but if we can find whats wrong and prevent a failure we may be good.