You may also like. Airmatic Air Suspension Compressor For Mercedes Benz GL & ML OEM 164 320 12 04. These air suspension are aftermarket ones. They will replace the original air springs. Instruction is not included. Professional installation is recommended. The item “Airmatic Air Suspension Compressor Pump For Mercedes Benz W164 GL& ML 1643201204″ is in sale since Friday, June 02, 2017. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Shocks & Struts”. The seller is “swsdsupermarket” and is located in Kentucky. This item can be shipped worldwide.