BMW E61 Touring Air Suspension Supply Device Compressor Motor 6785505

BMW E61 Touring Air Suspension Compressor Pump 6785505 is an original body leveling system component designed for BMW 5 Series Touring E61 models with rear air suspension. The used compressor ensures stable system operation, enabling automatic level control of the vehicle under load and maintaining proper suspension geometry.

Specifications and technical data

• SKU: 6785505-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6785505
• Substitutable numbers: 37106789937, 6789937, 37106785505, 6785505, 37106777827, 6777827, 37106775015, 6775015, 37206769082, 6769082, 37226765094, 6765094
• Category: Self-Levelling Suspension Parts

Purpose and Function in the Suspension System

The presented compressor is a component of the Automatic Level Control category, responsible for generating pressure in the pneumatic system of the BMW E61 Touring rear suspension. Its task is to supply the air springs so that the car maintains the set body level, regardless of the number of passengers or the weight of the cargo in the trunk.

A functional compressor translates to:

• stable vehicle handling under full load,
• proper operation of the self-leveling system,
• even wear of tires and suspension components,
• maintaining the driving comfort typical of the BMW 5 Series Touring.

Original BMW Fitment and Interchangeable Numbers

The compressor belongs to the group of original BMW components, which means precise mounting fitment to the factory mounting points in the E61 Touring. The part has a dedicated OEM part number and assigned interchangeable numbers, making it easy to verify compatibility with a specific vehicle configuration, including VIN-based selection.

By using an original compressor, compliance with the factory pneumatic system, electrical harness, and control module responsible for automatic level control is maintained.

Condition, Verification, and Service Application

The component is offered as a used part, allowing for economical repair of the air suspension system while maintaining operational parameters close to factory specifications. This type of compressor is frequently used by BMW specialist workshops as a replacement in cases of:

• decreased performance of the existing compressor,
• errors in the automatic level control system,
• problems with maintaining the rear axle height,
• excessive noise from the old pump.

Replacement with a functional unit restores correct system operation, reducing the risk of further damage to air suspension components.

Benefits of Using an Original Compressor

Using an original air suspension pump in the BMW E61 Touring provides a number of practical advantages:

• Factory Compatibility – no need for installation modifications, adapter fitting, or hose adjustments.
• Stable Operating Parameters – correct working pressure and cooperation with level sensors and the control unit.
• Safe Handling – proper rear axle height affects braking efficiency and predictable vehicle behavior.
• Reduced System Errors – a properly functioning compressor minimizes the risk of air suspension failure messages.

Part Selection and Additional Technical Information

When selecting this compressor for the BMW E61 Touring, it is advisable to use the OEM part number and the list of interchangeable numbers, which facilitates unambiguous identification of the component and minimizes the risk of purchasing an incorrect variant. If in doubt, selection can be based on vehicle data such as model, year, and suspension configuration.

If you need other components related to the self-leveling system in BMW, such as height sensors or additional pneumatic system components, check the available parts in the BMW Automatic Level Control category.

For users who want to better understand the relationship between suspension condition and drivetrain operation, and the impact of load on vehicle operation, a guide on transmissions will be helpful – a detailed discussion can be found in the article Gearbox: Manual, Automatic, or DSG – Common Faults and a Used Gearbox Buying Guide.

If you want to streamline the purchasing process for used parts, including air suspension components, it is worth familiarizing yourself with a practical guide on part verification, OEM number selection, and secure online transactions: Secure Online Purchase of Used Car Parts – A Step-by-Step Guide.