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2123200358 Mercedes-Benz S Class W221 Air Suspension Valve Block
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2123200358 Mercedes-Benz S Class W221 Air Suspension Valve Block
| Place of Origin | China |
| Brand Name | FHD |
| Certification | ISO 9001 |
Product Details
Compatible System:
Mercedes-Benz AIRmatic Air Suspension
Installation Location:
Near The Compressor Or Front Axle Area
Installation Type:
Direct Replacement
Number Of Ports:
6 (1 Inlet, 4 Outlets, 1 Accumulator Port)
Port Type:
Push-to-Connect / Threaded
Included Components:
Valve Body Assembly, O-ring Seals
Highlight:
Mercedes-Benz S Class air suspension valve block
,W221 air suspension valve block
,Mercedes-Benz S Class W221 valve block
Payment & Shipping Terms
Minimum Order Quantity
1 pc
Price
Negotiable
Packaging Details
Carton
Delivery Time
3-15days
Payment Terms
D/A,D/P,T/T,Western Union
Supply Ability
5000 Sets/month
Product Description
2123200358 Mercedes-Benz S Class W221 Air Suspension Valve Block
Product Overview
The 2123200358 is an air suspension valve block (also known as an Airmatic solenoid valve distribution block) developed specifically for the Mercedes-Benz S-Class W221 and multiple same-platform models. This component is a critical control unit within the AIRmatic air suspension system, responsible for distributing high-pressure air generated by the compressor to each individual wheel's air spring as required.
Through independent pressure regulation of all four wheels, it maintains the standard ride height and driving stability. The valve block incorporates multiple solenoid valves, precisely controlled by the suspension control unit (ECU) based on signals from the ride height sensors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Air Suspension Solenoid Valve Block / Distribution Block |
| Compatible System | Mercedes-Benz AIRmatic Air Suspension |
| Installation Location | Near the Compressor or Front Axle Area |
| Installation Type | Direct Replacement |
| Number of Ports | 6 (1 inlet, 4 outlets, 1 accumulator port) |
| Port Type | Push-to-Connect / Threaded |
| Feature | Colour-coded ports for correct installation |
| Included Components | Valve Body Assembly, O-ring Seals |
Compatible Vehicle Models
| Model | Chassis Code | Model Years |
|---|---|---|
| S-Class | W221 / W222 | 2007-2016 |
| CL-Class | C216 | 2007-2014 |
| E-Class | W212 / S212 | 2009-2016 |
| ML-Class | W164 / W166 | 2006-2015 |
| GL-Class | X164 / X166 | 2007-2016 |
| GLE-Class | W166 | 2016-2019 |
| GLS-Class | X166 | 2017-2019 |
| R-Class | W251 | 2006-2013 |
| CLS-Class | X218 | 2012-2018 |
Coverage: Includes 4MATIC all-wheel drive, AMG high-performance versions and hybrid models. Please verify with the actual vehicle for specific year and configuration compatibility.
Replacement OE Part Numbers
| Number Type | Part Number |
|---|---|
| Primary OE Number | 2123200358 |
| Primary OE Number | 2513200058 |
| Full Mercedes Format | A 212 320 03 58 / A 251 320 00 58 |
| Associated OE Number | 1663200204 |
| Associated OE Number | 2123200658 |
| Associated OE Number | 2123200158 |
Product Features
- Independent Four-Wheel Air Distribution: The valve block independently controls inflation and deflation of each air spring via internal solenoid valves, enabling precise vehicle posture adjustment and automatic level control.
- Integrated Pressure Sensor: The valve block incorporates the air suspension system's pressure sensor, which monitors system pressure and feeds signals back to the ECU, influencing the compressor's start and stop control logic.
- Optimised Sealing Design: Features upgraded PTFE support rings and specially coated O-ring seals that effectively resist vibration and chemical corrosion, reducing the risk of air leaks and preventing moisture and contaminants from entering the solenoid valve assembly.
- Plug-and-Play Replacement: Manufactured to strict OE specifications with an identical port layout to the original component, enabling direct replacement without any modifications or adapters.
Warehouse & Workshop
Keep dry, clean and handle with care.
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Frequently Asked Questions
| Question | Answer |
|---|---|
| Q1: How can I tell if the valve block is faulty rather than an air spring leaking? | A typical sign of valve block failure is one or more corners of the vehicle sitting too low and failing to raise, which is similar to air spring leak symptoms. A diagnostic method is to swap the airline from the low corner with the airline from a normal corner on the valve block. If the problem transfers to the other side, the valve block is faulty; if the problem remains on the same side, the air spring is likely leaking. |
| Q2: Should I replace the valve block at the same time as the compressor? | When the compressor fails due to wear and age, fine metallic debris from the wear process can circulate through the air system and enter the valve block, causing solenoid valves to stick or seals to become damaged. Therefore, if the compressor has been severely damaged, it is strongly recommended to replace the valve block simultaneously to prevent the new compressor from prematurely failing again due to blockages in the valve block. |
| Q3: How do I correctly connect the ports on the valve block? | This valve block features colour-coded ports - different coloured ports correspond to different connection points (compressor, each wheel air spring, accumulator tank), which helps prevent incorrect hose routing during installation. Simply match the colours to the original vehicle's lines to complete the correct connection. |
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