BMW X5 E70 Air Supply Device Suspension Compressor Motor 6775479

The BMW X5 E70 Air Suspension Compressor 6775479 is a component of the automatic leveling system, responsible for supplying the pneumatic suspension with compressed air. A used OEM BMW compressor ensures proper operation of the air springs and stable vehicle height maintenance, which translates to predictable handling and safe vehicle operation.

Specifications and technical data

• SKU: 6775479-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6775479
• Substitutable numbers: 37206859714, 6859714, 37226785506, 6785506, 37226775479, 6775479, 37206799419, 6799419, 37206789938, 6789938, BG
• Category: Self-Levelling Suspension Parts

Purpose and Function in the Suspension System

The air suspension compressor in the BMW X5 E70 is responsible for generating pressure in the pneumatic system, allowing the automatic leveling system to dynamically adjust the vehicle's height based on load and driving conditions. A properly functioning compressor:

• maintains constant ground clearance regardless of the number of passengers and cargo,
• supports vehicle stability during braking and cornering,
• reduces body roll, improving ride comfort,
• ensures compatibility with the factory BMW suspension control electronics.

Technical Specifications and Compatibility

The offered compressor is an original BMW Group part, designed for installation in the X5 E70 model equipped with pneumatic automatic leveling. The OEM construction guarantees:

• fitment with factory mounting points and pneumatic lines,
• compatibility with the serial suspension controller,
• maintenance of operating parameters as specified by the vehicle manufacturer,
• the ability to replace several reference numbers within the same parts family.

This allows the compressor to be used as a replacement in vehicles for which this version of the compressor was originally intended, without the need for installation modifications.

Condition, Origin, and Benefits of Using a Used Part

This component is from a dismantled vehicle and is offered as a used BMW suspension compressor. Choosing a used original part is a cost-effective solution while maintaining operational characteristics consistent with factory specifications. Compared to many low-budget aftermarket alternatives, an OEM component:

• is designed for a specific model and suspension system,
• maintains compatibility with factory sensors and controllers,
• reduces the risk of communication issues within the vehicle network.

Why Choose This Compressor for Your BMW X5 E70

Replacing a faulty compressor with a functional OEM part restores the proper operation of the pneumatic automatic leveling system, which directly impacts the safety and predictability of the BMW X5 E70's handling. This is particularly important in heavy vehicles with a high center of gravity, where a stable suspension reduces wear on other components and improves everyday driving comfort.

If you are looking for other components in the BMW Automatic Leveling category, check out our offer: BMW Automatic Leveling.

Service Tips and Additional Knowledge

When replacing the suspension compressor, it is advisable to check the pneumatic lines for leaks, the condition of the air springs, and the proper operation of the leveling sensors. Prolonged compressor operation with a leaky system can lead to premature wear, so a comprehensive diagnosis of the entire system is recommended.

If you are also interested in the topic of drivetrain repair and making informed choices when buying used parts, the following guide may be helpful: Gearbox: Manual, Automatic, or DSG – Common Faults and a Used Gearbox Buying Guide.