Arnott VB-3506 Air Suspension Solenoid Valve Unit

Arnott VB-3506 Air Suspension Valve Block

The Arnott VB-3506 is a direct OE replacement air suspension solenoid valve block for the 2000-2006 Mercedes-Benz S-Class W220 platform. It routes compressed air from the compressor to the air springs and air struts, helping maintain proper ride height and suspension response.

Built for specific fitment, this valve block is a practical replacement when the original unit develops internal leaks or electrical solenoid issues. It is a direct replacement for Mercedes-Benz part number 2203200258 and is commonly searched as an Arnott VB-3506 Mercedes S-Class air suspension valve block.

Key Features

• Direct OE replacement air suspension solenoid valve block
• Specific fit for Mercedes-Benz W220 S-Class applications
• Routes air from the compressor to the air springs and air struts
• 6-port design with oval male connector configuration
• Pin terminal type with 3 terminals and 6 connectors
• Standard-grade replacement for factory-style service
• Cross-reference: Mercedes-Benz 2203200258

Detailed Description

The Arnott VB-3506 is engineered for the 2000-2006 Mercedes-Benz S430, S500, S55 AMG, S600, and S65 AMG, plus the 2006 Mercedes-Benz S350. In the Mercedes-Benz S-Class air suspension system, the valve block controls air distribution between the compressor and the suspension components, making it a critical part of ride-height management and system operation. The VB-3506 is a direct OE-style replacement for the original valve block and is identified by part number VB-3506.

Over time, valve block O-rings can dry out and leak, which can cause the compressor to run excessively or allow moisture to affect the electrical solenoids. Replacing a worn valve block can restore proper air routing and help address common air suspension faults on the Mercedes-Benz S-Class W220.

Common Issues This Part Can Address

• Air leaks from dried or damaged valve block O-rings
• Compressor overworking due to loss of system pressure
• Slow or uneven suspension height changes
• Moisture-related electrical solenoid problems
• Faulty air distribution between the compressor and suspension corners

Installation Notes and Tips

Verify the connector shape, terminal count, and port layout before installation. This unit uses a male oval connector with pin terminals and is a specific-fit replacement, so matching the original configuration is important. Inspect surrounding air lines, fittings, and electrical connectors for wear or contamination during service. For best results, confirm the vehicle application against the original Mercedes-Benz part number 2203200258 before installation.

Quality Assurance

Arnott supplies OE-style suspension replacement components for specific vehicle applications, and the VB-3506 is built as a direct replacement for the factory valve block used on the Mercedes-Benz S-Class W220 platform.