Genuine OEM Skoda Air Conditioning Valve Cap, part number 5Q0816231. This small but essential component is designed to cover and protect the air conditioning system's service valve. It prevents dirt, moisture, and other contaminants from entering the system, which could lead to leaks or damage. Made from durable light grey plastic, it ensures a secure seal. Using a genuine OEM valve cap guarantees the correct thread and sealing properties to maintain the integrity of the AC system.