Air Tightiness testing: Built to strict quality control standards., CE Certification Direct Fit: Direct replacement for your failed air spring bag, no modification or drilling required. Simply bolt-on, making it an ideal solution for your air suspension system -Please double confirm the compatibility as well as the OEM number before purchasing. 2004 Mercedes E Class Air Suspension Parts & Kits Mercedes Air Spring Bags Pair Rear Air Spring Bag For Mercedes W211 Wagon E350 E500 2113200925 2 Pins E-Class Wagon Air Ride Repair Kit Application: for Mercedes-Benz E-Class T-Model S211 , Connector Type: 2 Pins 2pcs Rear Air Suspension Spring Bag compatible for Mercedes-Benz E-class S211 A2113200925 ... compatible for Mercedes-Benz E-Class T-Model S211 Estate E 240 T Professional installation is recommended -Instruction is not included.