{"product_id":"landnovo-airmatic-compressor-pump-2123200404-mercedes-w212-c218","title":"LANDNOVO Airmatic Air Suspension Compressor Pump 2123200404 for Mercedes-Benz E-Class W212 S212 \u0026 CLS C218 (2009-2018) | Heavy-Duty Direct Replacement","description":"\u003cdiv class=\"landnovo-product-detail\"\u003e\n  \u003cp\u003eEliminate rear axle bottoming-out, slow chassis auto-leveling, and persistent \"Airmatic Malfunction\" dashboard warnings with the \u003cstrong\u003eLANDNOVO Heavy-Duty Airmatic Air Suspension Compressor Pump Assembly (Part No. 2123200404 \/ A2123200404)\u003c\/strong\u003e. Specifically engineered for the global best-selling \u003cstrong\u003eMercedes-Benz E-Class (W212 \/ S212) and CLS-Class (C218 \/ X218 Shooting Brake)\u003c\/strong\u003e platforms, this high-output 12V pneumatic compressor restores dynamic vehicle stance, ride stability, and factory comfort at an accessible workshop-direct price.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Engineering Upgrades\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect 1:1 OE Drop-In Fitment:\u003c\/strong\u003e 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.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUpgraded Thermal Overload Protection:\u003c\/strong\u003e 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.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision-Balanced Low Noise Motor:\u003c\/strong\u003e Dynamic-balanced motor armature and high-density rubber vibration dampers isolate operating noise and prevent harsh operational buzzing inside the passenger cabin.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntegrated Desiccant Dryer Tank:\u003c\/strong\u003e Sealed dryer cylinder removes pneumatic moisture, preventing air valve sticking, internal corrosion, and airline freezing during cold winter conditions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eOEM Cross-Reference Part Numbers\u003c\/h3\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left; width: 30%;\"\u003eOEM Part Numbers\u003c\/th\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\n          2123200404, A2123200404, 2123200104, A2123200104, 212-320-04-04, 212-320-01-04\n        \u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eSystem Type\u003c\/th\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMercedes-Benz Airmatic Pneumatic Leveling System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eOperating Voltage\u003c\/th\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eMounting Location\u003c\/th\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRear Undercarriage Subframe \/ Wheel Arch Area\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eComprehensive Vehicle Fitment Guide\u003c\/h3\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background-color: #0f172a; color: #ffffff;\"\u003e\n        \u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eModel Years\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eMake\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eModel \u0026amp; Chassis\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eTrim \u0026amp; Engine Spec\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2009 – 2016\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMercedes-Benz\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-Class Sedan (W212)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE250, E300, E350, E400, E500, E550, E63 AMG (with Airmatic)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2009 – 2016\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMercedes-Benz\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-Class Wagon \/ Estate (S212)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAll models (Factory Rear Self-Leveling Air Suspension)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2011 – 2018\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMercedes-Benz\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCLS-Class (C218 4-Door Coupe)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCLS350, CLS400, CLS500, CLS550, CLS63 AMG (with Airmatic)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2012 – 2018\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMercedes-Benz\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCLS Shooting Brake (X218)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAll variants equipped with rear\/full air suspension\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eWorkshop Diagnostic \u0026amp; Installation Advisory\u003c\/h3\u003e\n  \u003cp style=\"background: #fdf6e2; border-left: 4px solid #f59e0b; padding: 12px; font-size: 14px; margin: 15px 0;\"\u003e\n    \u003cstrong\u003eTechnician Note:\u003c\/strong\u003e 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. \u003cstrong\u003eAlways replace the system compressor power relay simultaneously\u003c\/strong\u003e to prevent fused relay contacts from running the new compressor continuously.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Landnovo","offers":[{"title":"Default Title","offer_id":52368573694248,"sku":null,"price":108.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/4243\/8184\/files\/2_bf04ced5-669c-46a5-9ae6-b2b0a49be51e.jpg?v=1789113629","url":"https:\/\/landnovo.com\/products\/landnovo-airmatic-compressor-pump-2123200404-mercedes-w212-c218","provider":"Landnovo Premium Auto Parts","version":"1.0","type":"link"}