2007 4Matic R500
#1
2007 4Matic R500
Problem started with a sag to the right rear. On startup, compressor would run, hyperextending the left rear, bringing the right rear to normal height. Disconnected the lines at the equalizer(?) valve where the compressor line joins the block to check for leaks - none found. With the system totally deflated, compressor ran, vehicle leveled as per normal, and was good for a couple of weeks. A few days ago it began again, and I repeated the process. I noticed the sag beginning as I was driving, the compressor kicked in, and even though it appeared the right rear was sagging, the bag exploded long before the compressor finished running. Dropped hard on the rear axle. I intend to replace both bags, suspension level sensors, and the equalizer valve. I have found everything BUT what I refer to as the equalizer. It's located on the passenger side, just beside the rad. Compressor line comes in, air lines out, multi-pin plug. I would greatly appreciate the proper part number/name so I can source it, and would also like to know if there's anything else I should replace. Vehicle has 189,000 kms on it, remains very strong, and likely the most reliable vehicle I've had the pleasure to drive. Help appreciated!
#3
Member
new new shocks
it's just a matter of time before it fails to inflate completely. Replacement shocks are inevitable, basically they start to fail every 80k or so miles.