Felendo Air Suspension Compressor for Audi A6, A7, A8 & Bentley Mulsanne 4G0616005C

Product Name: 4G0616005C Air Suspension Compressor

Overview

The 4G0616005C is a complete air suspension compressor assembly for a range of premium Volkswagen Group vehicles, including the Audi A6 (C7), A7 (C7), A8 (D4) and the Bentley Mulsanne. As the “heart” of the electronic air suspension system, this unit is responsible for generating and supplying pressurized air to the entire system.

This assembly is more than just a pump; it is an integrated unit that includes the compressor motor, the solenoid valve block, a built-in air dryer, and intake air hoses. It is a direct replacement for the original equipment (OE) component and is available from various manufacturers, including the renowned aftermarket brand Arnott (P-3278 / P-3483).

How the System Works

The valve block is a small but critical component that manages the distribution of pressurized air. It receives compressed air from the compressor and, under the command of the vehicle’s ECU, directs it to the individual air springs/struts or the pressure reservoir. A common misconception is that the air springs are always filled directly by the compressor. In most cases, the compressor first pressurizes the reservoir up to 15-16 bar; this stored air is then used for rapid and efficient height adjustments, minimizing compressor run time and preventing overheating.

Common Failure Symptoms

Over time, the compressor can fail or the valve block can become faulty. Symptoms include:

• Vehicle Sagging: The vehicle is noticeably lower on one or more corners.

• Noisy or Overworking Compressor: The compressor runs constantly, makes loud noises, or fails to turn on.

• Suspension Warning Lights: Error codes related to the air suspension appear.

• Moisture and Corrosion: If the dryer fails to remove moisture, the valve block can corrode internally or even freeze in cold temperatures, causing it to stop functioning.

Key Features & Benefits

• Complete Assembly: This unit includes the compressor, integrated valve block, air dryer, and relay for a complete repair solution.

• Direct OE Replacement: Designed to meet or exceed original equipment specifications for a perfect fit and factory performance.

• Restores Suspension Performance: Replacing a faulty unit will eliminate sagging, stop noisy operation, and restore proper ride height and comfort.

• High-Quality Construction: Features a heavy-duty motor, electroplated finish to prevent corrosion, and an integrated dryer to protect the system from moisture.

Vehicle Compatibility

This 4G0616005C air suspension compressor is compatible with the following vehicles:

OE Cross-Reference Numbers

This part replaces the following original equipment (OE) part numbers:

• 4G0616005C

• 4G0616005D

• 4H0616005A, 4H0616005B, 4H0616005C, 4H0616005D

• 4H0616006

Aftermarket Equivalents

This component is also available under other aftermarket brands:

• Arnott Industries: P-3278, P-3483

• ASHIKA: MA-ASC063

Important Installation Notes

• This is a complete assembly that includes the valve block.

• Crucial: When replacing the air suspension compressor, you must always change the relay before installing the new compressor, even if it appears to still work. This is a manufacturer specification.

• Ensure the entire air system is absolutely leak-proof after repair. Any leak will compromise the new compressor.

• Professional installation and system recalibration using diagnostic equipment are recommended.