Mercedes-Benz owners, if you're dealing with vacuum system issues on your W176, W246, CLS W218, W212, W463, ML W166, or W221 models, this solenoid valve is exactly what you need! The part number A0081535428 (also compatible with A0101531328 and several other numbers) ensures perfect fitment for your specific Mercedes model. Vacuum solenoid valves are crucial for various systems in your vehicle - they control everything from braking assistance to climate control functions. When these valves fail, you can experience all sorts of weird issues that are hard to diagnose. This replacement part comes with a 6-month warranty, giving you peace of mind that you're getting a quality component. Installation is straightforward for experienced mechanics - usually just involves disconnecting the electrical connector and vacuum lines, then swapping the old valve for this new one. Using the correct part number is essential with Mercedes vehicles - their systems are precisely engineered, and the wrong component can cause cascading issues. Whether you're a DIY enthusiast with the right tools and knowledge or a professional technician, having the proper replacement valve makes the repair job so much smoother. The build quality matches what you'd expect from Mercedes components - durable materials that will withstand the heat and vibration of engine compartment conditions. If your check engine light is on or you're experiencing strange behavior from various vehicle systems, a faulty vacuum solenoid valve could be the culprit. This replacement gets your Mercedes back to operating like it should, with all systems functioning properly. It's one of those repairs that seems complicated but is actually pretty straightforward when you have the right part!