Air Suspension Valve Block for Audi A8 D5 (4N) 2017+

Restore the Future of Driving Comfort

The Audi A8 (D5) is more than a luxury sedan; it's a statement of technological leadership. Its optional Predictive Active Suspension redefines what's possible, actively scanning the road ahead to create a ride of unprecedented smoothness and stability. At the heart of this marvel of engineering lies the solenoid valve block, the component responsible for directing airflow with millisecond precision.

This valve block is the command center that translates electronic signals into physical action, managing the pressure in each air strut to level the vehicle, absorb bumps before you feel them, and even raise the car for easier entry. When it begins to fail, the signature experience of your A8 is lost. The symptoms are clear:

• An unavoidable "Suspension: Malfunction!" warning on the Virtual Cockpit.

• The vehicle losing its proud stance, sagging at one or more corners after parking.

• The inability to control ride height via the MMI interface.

• A harsh and compromised ride, as the system defaults to a safe, non-active mode.

Critically, a leaking valve block puts your air compressor in a state of constant stress, forcing it to run excessively to fight the pressure loss. This will inevitably lead to the premature and costly failure of the compressor unit. This Biste Air Suspension Valve Block is the essential, high-quality solution to restore your A8's full technological prowess and protect its sophisticated systems.

CRITICAL INSTALLATION PROTOCOL:The longevity of this component in such an advanced system is paramount. Professional installation following these guidelines is required.

1. System Contamination is Unacceptable: If the old air compressor has failed, it may have released fine desiccant particles into the air lines. This debris WILL cause immediate and irreversible damage to the sensitive seals inside this new valve block. The air lines MUST be inspected and flushed clean before installation.

2. Verify All Connections: After installing the new valve, perform a leak test on all air line fittings using a soapy water solution to ensure they are perfectly sealed.

Key Features & Benefits:

• Flagship Specific Design: Engineered exclusively for the Audi A8 D5 (4N) platform for a perfect fit and function.

• Restores Predictive Suspension: Enables the full range of comfort and dynamic features of your advanced chassis.

• Eliminates Fault Warnings: Clears persistent suspension malfunction errors from your dashboard.

• Safeguards the Air Compressor: By creating a perfect seal, it prevents the compressor from overworking and burning out.

• Cures Suspension Sag: The definitive fix for a vehicle that leaks down when parked, restoring its prestigious appearance.

• Direct Plug-and-Play Installation: Mounts in the factory location with no modifications required.

Product Specifications

Vehicle Compatibility

This valve block is a direct fit for the following models equipped with factory air suspension:

• Audi A8 (D5, 4N2, 4N8) | 2017 - Present

• Audi S8 (D5, 4N2, 4N8) | 2019 - Present

• Audi A8 L (D5, 4NC, 4NL) | 2017 - Present

Replaces OEM Part Numbers

This unit is a direct, interchangeable replacement for the following original equipment part numbers:

• 4N0 616 013 / 4N0616013

• 4N0 616 013 A / 4N0616013A