There are a ton of different valves located under the hood of your Mercedes-Benz vehicle that are important when it comes to the operation of various systems. Valves are responsible for controlling the flow of fluids by opening and closing at different times. One of their major jobs is to regulate the amount of air and fuel being sent to your cylinders during the combustion process. It's important that the valves on your vehicle are in good condition to be able to effectively do this. Valves are equipped with sleeves and seals to prevent different gases or fluids from escaping and causing problems. You might notice different signs of failing valves or broken seals, which should lead you to getting replacements as soon as possible. If you notice blue smoke coming from your exhaust, it can indicate that seals are worn and allowing oil to be passed through the combustion chamber. The mixing of oil and fuel can produce this. Engine power loss and ticking noises could also indicate valve problems. You can find OEM replacement valves for your Mercedes-Benz here on our site.