Humoony Air Suspension Solenoid Valve Block for Mercedes‑Benz — Direct-Fit Replace# 2123200358, Restores Ride Height

Humoony's air suspension solenoid valve block is a direct-fit replacement part that controls air flow to each air spring for compatible Mercedes‑Benz models, restoring precise ride height and balanced suspension response.

When an air suspension solenoid fails, you may notice sagging corners, uneven ride height, or warning lights. This Humoony valve block is engineered to match the electrical and pneumatic connections of many CLS, GL, GLE, CL, ML, R and S‑class Mercedes‑Benz vehicles, providing a straightforward repair path without modifying the factory system. It replaces OEM numbers including 2123200358 and related variants, and ships with a 1‑year warranty and customer support.

Which Mercedes models will this valve block fit?

This valve block covers a wide range of Mercedes‑Benz models across several classes and model years. Before ordering, verify fitment against your vehicle's OEM part number or use the seller's fitment confirmation tool.

• CLS: 2012–2018 CLS550, 2015–2017 CLS400, CLS63 AMG variants
• GL/GLS: GL320/GL350/GL450/GL550 ranges and 2017–2019 GLS series
• GLE: 2016–2019 GLE300d/GLE350/GLE400/GLE500/GLE63 AMG families
• CL/ML/R/S: CL550 (2009–2014), multiple ML, R and S‑class years listed in product features

How does this solenoid valve block affect ride height and handling?

The valve block distributes compressed air to each air spring, allowing the suspension control module to adjust height and maintain balance. Replacing a faulty valve restores predictable leveling and improves stability, especially when hauling loads or driving on uneven roads.

• Enables accurate air flow to individual air springs
• Helps maintain factory ride height and vehicle stance
• Reduces unwanted leaning, sagging, or uneven responses
• Works with the vehicle's existing electronic suspension controls

What should I check before installing this replacement block?

Confirm the part number and connector style match your vehicle, and inspect associated hoses, fittings, and the compressor for related wear. Proper diagnostics help avoid repeat failures and ensure the new valve block operates as intended.

• Compare OEM numbers: 2123200358, 212‑320‑03‑58 and listed alternates
• Check electrical connector pins and vacuum/air hose locations
• Inspect air springs, lines, and compressor condition
• Clear suspension fault codes after installation if required

What warranty and support come with this Humoony part?

Humoony includes a standard 1‑year warranty on this aftermarket solenoid valve block and provides customer support for installation questions or post‑sale issues. Keep purchase records and photos handy for warranty requests.

• 1‑year limited warranty from Humoony
• Customer support for fitment and troubleshooting
• Replacement guidance if manufacturing defect is confirmed
• Recommended to document VIN and part compatibility at purchase

Who is this for? This Humoony air suspension solenoid valve block is designed for Mercedes‑Benz owners, independent mechanics, and repair shops needing a dependable replacement for air distribution failures across many CLS, GL, GLE, CL, ML, R and S‑class model years. It suits anyone looking to restore proper ride height, correct sagging corners, or eliminate suspension fault codes using a part that mirrors OEM fit and function, backed by a one‑year warranty and after‑sale support.