Airmatic suspension issues

First I need to know what slams to the ground, front? Back? Or the entire car?
This is from MB on single axle lowering.
VEHICLE LEVEL LOWERS ON A SINGLE AXLE TECHNICAL SERVICE BULLETIN Reference Number(s): P-B-32.50/42, Â Date of Issue: Â October 11, 2006 Related Ref Number(s): 32.50/42 ARTICLE BEGINNING SUBJECT Model 215.373/374/375/376/378/379 Model 220.170/173/174/175/176/178/179, with Active Body Control (ABC) code 487 Model 221.171/176/179, with Active Body Control (ABC) code 487 Model 230.471/474/475/476/477/479 All Model Years Vehicle Level Lowers on a Single Axle SERVICE INFORMATION If you receive customer reports in the above model vehicles of the vehicle's level lowering on a single axle on a single side after an idle time lasting from 1 day to one week, perform the new filter repair method as outlined in WIS document AR32.50-P-0025A instead of the previous flushing method. Leveling complaints resulting from dirty ABC hydraulic fluid can be rectified just as effectively by filtering as by the conventional flushing method (replacing the hydraulic fluid). The new repair method is possible because the mesh width of the ABC filter was modified from 10microm to 3microm. Filtering is of no use if the ABC fluid is dark black or smells burnt. In such cases the hydraulic fluid must be replaced, reference WIS document AR32.50-P-0026A.
MERCEDES- BENZ: Model 215.373/374/375/376/378/379; Model 220.170/173/174/175/176/178/179; Model 221.171/176/179; Model 230.471/474/475/476/477/479 GROUP: 32 - Suspension NOTE: Vehicle lowering is generally not the result of a malfunction of a suspension strut. The suspension strut can only be responsible for vehicle lowering if it has an external leak. This can be recognized by an oil fouled boot. NOTE: The revised 3microm ABC filter entered series production as of October 2005.

There is a technical service bulletin on the wiring being cut by the wiper linkage, I will email it to you.

Probably fixed by now

Air suspension sitting low may contribute to the shaking but is not likely the soul cause. You may have worn steering dampner, worn suspension or steering components.

This is a very common issue on this vehicle. The air pump relay sticks causing the pump to over amp, which takes out he maxi fuse. The repair will require a new air suspension pump, 40 maxi fuse and pump relay.