Arnott P-3818 Air Suspension Compressor

Arnott Air Suspension Compressor for BMW

Arnott P-3818 is a brand-new aftermarket air suspension compressor assembly for select BMW 5-Series GT and 7-Series models. It replaces the original OE compressor with a compact, lightweight unit built for direct OE replacement service on BMW air suspension systems.

Compatible with 2010-2017 BMW 535i GT, 2011-2017 BMW 535i GT xDrive, 2010-2017 BMW 550i GT xDrive, 2010-2015 BMW 550i GT, and multiple 2009-2015 BMW 7-Series applications, this compressor is built for drivers needing a dependable replacement for the factory air supply system. The Arnott air suspension compressor line focuses on restoring proper system operation with a complete compressor assembly kit that includes a dryer, relay, valve block, and mounting bracket.

Key Features

• Brand-new air suspension compressor assembly kit
• Direct OE replacement for select BMW air suspension systems
• Includes dryer, relay, valve block, and mounting bracket
• Black finish with male connector design and 3 connectors
• Standard-grade replacement component
• Mounting hole quantity: 4

Product Details

Arnott Air Suspension Compressor P-3818 is engineered for BMW 5-Series GT and 7-Series vehicles that use factory air suspension. It is a replacement for the original compressor and is intended to restore air supply performance in systems that rely on consistent pressure generation and control. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Arnott P-3818 is a practical choice when servicing BMW 535i GT, BMW 740i, BMW 750Li xDrive, or other listed applications where the OE compressor has failed or become inefficient.

Common Problems This Part Can Address

• Air suspension compressor failure or no-start condition
• Slow vehicle leveling after parking or load changes
• Loss of air pressure in the suspension system
• Compressor noise, overheating, or reduced output
• Warning lights related to suspension pressure or ride height

Installation Notes

Verify vehicle fitment by year, model, and drivetrain before installation. This compressor assembly includes a mounting bracket, dryer, relay, and valve block, while mounting hardware and wiring harness are not included. Professional installation is recommended, and the air suspension system should be inspected for leaks, damaged lines, or related component wear before replacing the compressor. Fits 2010-2017 BMW 535i GT, N/A; Fits 2011-2017 BMW 535i GT xDrive, N/A; Fits 2010-2017 BMW 550i GT xDrive, N/A; Fits 2010-2015 BMW 550i GT, N/A; Fits 2010-2015 BMW 740i, N/A; Fits 2015 BMW 740Ld xDrive, N/A; Fits 2011-2015 BMW 740Li, N/A; Fits 2013-2015 BMW 740Li xDrive, N/A; Fits 2009-2015 BMW 750i, N/A; Fits 2010-2015 BMW 750i xDrive, N/A; Fits 2009-2015 BMW 750Li, N/A; Fits 2010-2015 BMW 750Li xDrive, N/A; Fits 2009-2015 BMW 760Li, N/A; Fits 2013-2015 BMW ActiveHybrid 7, N/A.

Quality Assurance

Arnott supplies aftermarket suspension components for OE-style replacement applications, and this compressor is sold as a new standard-grade assembly for the listed BMW models. Part number P-3818 is built to provide an efficient and reliable replacement solution for BMW air suspension compressor service.