Audi A6 C6 4F Allroad Air Suspension Pressure Accumulator Tank 4F0616203C

Audi A6 C6 4F Allroad Air Suspension Pressure Accumulator Tank is a component of the Automatic level control system, responsible for storing compressed air for the rear axle air suspension. A properly selected tank ensures stable operating pressure, which translates into predictable suspension performance, ride comfort, and safe vehicle handling. This component is designed for installation in the rear of the vehicle, in accordance with Audi's factory design concept.

Specifications and technical data

• SKU: 4F0616203C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0616203C
• Substitutable numbers: 4F0616203C, 4F0 616 203 C
• Location on the vehicle: Rear
• Category: Self-Levelling Suspension Parts

Function in the automatic level control system

The air tank in an Audi air suspension system plays a key role as a reservoir of compressed medium for the compressor and suspension air springs. Thanks to its appropriate capacity and design, it allows for:

• maintaining a stable body level under varying loads,
• efficient system response to height changes set by the controller,
• reducing the frequency of compressor activation, which promotes its durability.

In combination with other elements of the Automatic level control system, the tank influences the predictable behavior of the car during acceleration, braking, and driving with a load.

Purpose and placement on the vehicle

The presented air tank has been designed for installation in the rear of the vehicle, which is consistent with the architecture of Audi's premium suspension. The placement at the rear of the car allows for:

• optimal routing of pneumatic lines to the suspension air springs,
• maintaining the proper weight distribution of the system,
• easier service access during inspections and repairs.

The rear position of the tank supports vehicle stability when the trunk and rear axle are fully loaded, which is particularly important in Allroad models, often used with cargo or in varied road conditions.

Product characteristics and fitment

The offered element comes from the Audi group and is consistent with the factory air suspension system concept. As a result, the following are maintained:

• geometry of mounts and pneumatic connections,
• compatibility with the stock compressor and lines,
• proper cooperation with the electronics controlling the level adjustment.

The product is in used condition, which allows for economical repair of the suspension system while maintaining the original design. This solution is particularly beneficial for comprehensive pneumatic system maintenance when it is necessary to replace several elements at the same time.

Benefits of using an original air tank

Using a dedicated air tank in the Audi A6 C6 Allroad brings a number of practical benefits:

• Stable air suspension operation – proper system pressure reduces the risk of level control errors and uneven axle lifting.
• Better compressor protection – the appropriate reservoir capacity reduces the number of compressor duty cycles, which can extend its service life.
• Consistency with the factory design – maintaining the original system concept facilitates diagnostics and service in the future.

For users who value predictable car behavior and ride comfort, a functional air tank is an essential element of the entire suspension system.

Audi automatic level control – expansion and service

If you are planning a comprehensive repair or upgrade of the suspension area in your Audi and need other elements from the same group, such as air springs, pneumatic lines, or a compressor, check the available parts in the Audi Automatic level control category.

While working on the suspension, it is also worth verifying the condition of other drivetrain components, including the transmission. Practical tips on choosing and operating transmissions can be found in the article: Transmission: manual, automatic, or DSG – common faults and a guide to buying a used transmission.

If you are considering wider use of aftermarket components in your car, a guide debunking popular myths about them may also be helpful: Used car parts: Myths and facts you need to know.