Arnott VB-3491 Air Suspension Solenoid Valve Unit

Arnott VB-3491 Air Suspension Valve Block

Arnott VB-3491 is a new air suspension solenoid valve block for Audi air suspension systems. It is a direct OE replacement for select Audi A6, A7, A8, RS7, S6, S7, and S8 models, helping restore proper air distribution from the compressor to the air springs and air struts.

Built as a specific-fit replacement, the VB-3491 matches the original valve block layout and electrical connection style used on the vehicle. This part number, VB-3491, is a practical solution when the original valve block begins to leak or respond inconsistently.

Key Features

• Direct OE replacement air suspension solenoid valve block
• Specific fit for select Audi air suspension applications
• Blade terminal type with female rectangular connectors
• 6 connectors, 6 ports, and 3 terminals
• Standard-grade replacement with hardware included
• Cross-references Audi OE part numbers 4H0616013, 4H0616013A, 4H0616013B, and 4H0616013C

Detailed Description

The Arnott VB-3491 air suspension solenoid valve unit controls how compressed air is routed through the suspension system. On Audi A6, Audi A6 Quattro, Audi A7 Quattro, Audi A8 Quattro, Audi RS7, Audi S6, Audi S7, and Audi S8 models, a worn valve block can allow air leakage or moisture intrusion that affects solenoid operation and compressor performance. VB-3491 restores the OE-style air path and electrical interface for the listed applications.

This part is a direct replacement for the factory valve block used on 2011-2018 Audi A8 Quattro, 2012-2018 Audi A6 and A6 Quattro, 2012-2018 Audi A7 Quattro, 2014-2018 Audi RS7, 2013-2018 Audi S6, S7, and S8, and 2016-2017 Audi A7. Search terms such as Audi A8 Quattro air suspension valve block replacement, Audi A6 air suspension solenoid valve unit, and Arnott VB-3491 OE replacement are all aligned with this application.

What It Helps Address

• Air leaks caused by dried or damaged valve block O-rings
• Compressor overwork from loss of system pressure
• Moisture-related solenoid degradation
• Uneven or inconsistent air spring inflation
• Faults tied to a failing OE air suspension valve block

Installation Notes and Tips

Verify the OE part number and connector layout before installation. The VB-3491 uses a specific-fit design with 6 female rectangular connectors and blade terminals, so the replacement should match the original unit on the vehicle. Inspect surrounding air lines, fittings, and electrical connectors for wear or contamination before reassembly.

For best results, confirm the vehicle’s air suspension diagnosis before replacing the valve block. On Audi A6, Audi A8 Quattro, and related models, a leaking valve block can create symptoms that overlap with compressor or air spring issues, so a complete system check is recommended during service.

Quality Assurance

Arnott supplies OE-style suspension replacement components engineered for direct-fit service on the listed Audi applications. VB-3491 is a new replacement part built to match the original valve block function and connection style for the specified vehicles.