LANDNOVO Airmatic Air Suspension Compressor Pump 2123200404 for Mercedes-Benz E-Class W212 S212 & CLS C218 (2009-2018) | Heavy-Duty Direct Replacement

Eliminate rear axle bottoming-out, slow chassis auto-leveling, and persistent "Airmatic Malfunction" dashboard warnings with the LANDNOVO Heavy-Duty Airmatic Air Suspension Compressor Pump Assembly (Part No. 2123200404 / A2123200404). Specifically engineered for the global best-selling Mercedes-Benz E-Class (W212 / S212) and CLS-Class (C218 / X218 Shooting Brake) platforms, this high-output 12V pneumatic compressor restores dynamic vehicle stance, ride stability, and factory comfort at an accessible workshop-direct price.

Key Features & Engineering Upgrades

• Direct 1:1 OE Drop-In Fitment: Engineered strictly to Mercedes-Benz factory dimensions, chassis bracket points, push-in airline ports, and multi-pin electrical harness connectors. 100% bolt-on installation with zero rewiring or bracket modification.
• Upgraded Thermal Overload Protection: Equipped with an internal thermal cut-off sensor and wear-resistant PTFE composite piston rings to prevent motor burnout caused by overloaded or leaking rear air spring bladders.
• Precision-Balanced Low Noise Motor: Dynamic-balanced motor armature and high-density rubber vibration dampers isolate operating noise and prevent harsh operational buzzing inside the passenger cabin.
• Integrated Desiccant Dryer Tank: Sealed dryer cylinder removes pneumatic moisture, preventing air valve sticking, internal corrosion, and airline freezing during cold winter conditions.

OEM Cross-Reference Part Numbers

Comprehensive Vehicle Fitment Guide

Workshop Diagnostic & Installation Advisory

Technician Note: On Mercedes W212 and C218 models (especially the S212 wagon and high-mileage sedans), compressor burnout is almost universally caused by hairline cracks in the rear rubber air springs (bellows) or corroded airline brass fittings. Before installing this new compressor, thoroughly test the rear air springs with soapy water. Always replace the system compressor power relay simultaneously to prevent fused relay contacts from running the new compressor continuously.