Humoony Air Suspension Solenoid Valve Block for Mercedes-Benz — Direct-Fit Replacement 2123200358, 6-Port Restores Ride Height

Humoony's air suspension solenoid valve block routes compressed air to each air spring so your Mercedes-Benz maintains correct ride height and responsive handling.

This replacement valve block is the central air distribution module for Mercedes air suspension systems, designed to accept air from the compressor or reservoir and send it to the four corner air springs and the pressure tank connection. It fits a wide range of Mercedes models (CL, CLS, GL, GLE, GLS, ML, R, S classes) across model years listed below and replaces OEM numbers including 2123200358. The unit helps restore reliable air routing when the original valve block has leaks, failed solenoids, or electrical faults.

How does this valve block restore proper suspension function?

The valve block receives pressurized air and uses internal solenoids and ports to route that air to individual air struts. When a circuit fails, air leaks or a solenoid stops switching, the system can’t hold height — replacing the valve block resolves those distribution faults. Installation returns controlled air flow to each wheel so the car can level and the ECU can manage height corrections.

• Six ports: compressor feed, four air spring outlets, and reservoir connection
• Direct-fit replacement for listed Mercedes part numbers
• Restores sealed air routing to prevent slow leaks and uneven ride height
• Works with the vehicle’s existing harness and ECU signals

Will this part fit my Mercedes model and year?

This Humoony valve block matches a long list of Mercedes variants — verify compatibility with the vehicle’s model code and year. Use the listed part numbers (e.g., 2123200358) and the vehicle fitment table to confirm a match before ordering. If in doubt, check the vehicle’s service sticker or ask a technician for the part reference.

• Fits CL, CLS, GL, GLE, GLS, ML, R and S classes across the years shown
• Replaces OEM numbers: 2123200358, 212-320-03-58, 0993200058 and equivalents
• Check ‘‘amazonconfirmedfit’’ or VIN-compatible lookup to confirm fit
• Front-position variants listed for some CLS/CLS63 AMG models

What should I expect during installation and diagnostics?

Installation requires basic air-suspension familiarity: depressurize the system, unplug electrical connectors, and swap the valve block while protecting hoses and seals. After installation, clear any fault codes and allow the compressor to charge the system; observe height and listen for leaks. Professional installation is recommended if you’re unfamiliar with compressed-air systems or Mercedes-specific diagnostics.

• Depressurize suspension before removing the old unit
• Reconnect electrical plugs and air hoses carefully to avoid cross-threading
• Clear ECU codes and run a system cycle to confirm proper operation
• Consider professional shop for diagnostic equipment and torque specs

What durability and support come with this replacement valve block?

Humoony supplies this valve block with a one-year warranty and customer support for fitment or functional questions. The part is engineered for accurate air distribution and sealed connections to minimize leak points and prolong service life. Routine inspection of hoses and fittings will help ensure long-term reliability.

• Backed by Humoony’s 1-year warranty and support team
• Engineered to meet air-routing needs of listed Mercedes models
• Replace old seals and check lines when fitting to prevent future leaks
• Use OEM part numbers to verify exact compatibility

Who is this for: This Humoony solenoid valve block is intended for Mercedes owners, mechanics, and restoration specialists who need a direct replacement for a failing air suspension distribution module on compatible CL, CLS, GL, GLE, GLS, ML, R, and S-Class vehicles. Choose this unit if your car shows sagging, uneven height, compressor overrun, or stored air suspension fault codes and you want a reliable, warranted replacement that fits OEM reference numbers.