Rear suspension sag

[MERC2004]

Getting the Merc ready for spring, the rear suspension is sagging to the drivers side, what could be the cause and where do I start looking for the problem.
Thanks:bigcry:

[RubberCtyRauder]

ride height sensor, air bag leak or connections (soapy water) has the car sat all winter? have you started it and let the compressor cycle?

[Ambitious1]

ride height sensor, air bag leak or connections (soapy water) has the car sat all winter? have you started it and let the compressor cycle?

Yes, what he said. I had a similar issue. Turned out to be an air bag leak.

[MERC2004]

Yes car has sat all winter, composure cycles, right side goes to normal height, left dose nothing.
thanks

[GetMeMyStogie]

Yes car has sat all winter, composure cycles, right side goes to normal height, left dose nothing.
thanks

Could be the air valve on the left spring not opening, possibly caused by break in the wiring, resistance/corrosion at a connector, failed solenoid, stuck valve piston, seized 0-ring.
Could be suspension binding on the left side.

Jack up car from frame and listen for hissing to confirm air bag leak, but it doesn't sound like it from these symptoms.

Sagging after a period of sitting isn't surprising - bike tires need pumping up in the springtime, too.

[MERC2004]

Thanks for all the info guys, will be checking things out this weekend. If parts are needed, where is the best place to find them, bags,solenoid's etc.
Thanks