I am the new owner of a 1986 420 SEL (european model). The car only has 109,000 original miles on it! I have a few things that I need to address on the vehicle, however and I am not sure where to start. The rear "air ride" suspension system has what appears to be a leak so the back of the car sits low. Does anyone know where the main system housing is for this unit? I would like to trace the lines to see if there is a repairable leak in one of them but need to know where to start. Also, I have issues with the vechicle wearing down front tires. The tires are going bald on the outside while the inside still has tread. The vechicle seems to go down the road straight so I am questioning alignment. I am wondering if it has to do with the rear suspension issue or if it is cheap tires that aren't holding up to the weight of this awesome vechicle? Any thoughts?

Thanks,

Brandon