Introduction This conversion kit convert air spring to coil spring & Electronic Dampers to passive dampers, which can help you get rid of issues that caused by Automatic Height Controllike air leaking from the system, a clogged or weak compressor pump, & the height control sensors. Any one of these faults can leave your compatible for Mercedes-Benz lowered all the way to the bump stops, raised to the maximum height, or even leaning to one side. Application Compatible for Mercede-Benz S-Class W220 2000-2006 With Airmatic Suspension without 4 Matic compatible for Mercedes-Benz S Class S430 2000-2006 compatible for Mercedes-Benz S Class S500 2000-2006 (Not correct for models with ABC (Active Body Control) or 4MATIC (All Wheel Drive))OE/ Part number Reference OE/OEM Number: 2203202438, 220 320 24 38 Interchange Part Number: 220 320 24 38, 220 320 2438, 220 320 5113, 2203202438, 220320243860, 220320243880, 220320243888, 2203205113, 220320511360, 220320511380, 220320511388, A2203202438, A22032024386...