LANDNOVO Airmatic Air Suspension Compressor Pump 1643201204 for Mercedes-Benz ML-Class W164 & GL-Class X164 (2005-2012) | Heavy-Duty OE Replacement

Eliminate overnight chassis dropping, slow leveling adjustment, and "Airmatic Visit Workshop" cluster warnings with the LANDNOVO Heavy-Duty Airmatic Air Suspension Compressor Pump (Part No. 1643201204 / A1643201204). Engineered specifically for the full-size Mercedes-Benz ML-Class (W164) and GL-Class (X164) luxury SUV 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: Fabricated strictly to Mercedes-Benz factory dimensions, bracket mount points, push-in airline ports, and multi-pin electrical harness connectors. 100% plug-and-play with zero rewiring or bracket modifications.
• Upgraded Thermal Overload Protection: Integrated internal thermal switch and wear-resistant PTFE piston rings prevent motor burnout caused by overloaded or leaking suspension air springs.
• Whisper-Quiet Balanced Armature: Dynamic-balanced motor core with heavy-duty rubber vibration dampeners isolates operating noise and prevents harsh buzzing resonance inside the passenger cabin.
• Corrosion-Resistant Housing & Desiccant Filter: Heavy-duty sealed casing resists underbody road spray and road salt, while the premium desiccant dryer prevents internal moisture contamination and valve freezing.

OEM Cross-Reference Part Numbers

Vehicle Fitment Guide

Workshop Diagnostic & Installation Advisory

Technician Note: On Mercedes W164 and X164 models, the air compressor almost never fails on its own—it burns out due to continuous cycling caused by leaking rear air spring bladders (bellows) or airline valve block leaks. Before or immediately after installing this compressor, inspect the rear air bags with soapy water. Always replace the 40A compressor power relay (located in the front fuse box) simultaneously to prevent relay contact sticking, which would run the new pump continuously and void warranty.