A6540940004 Air Filter fit For CLS C257 E-CLASS W213 S-CLASS W222 V222 X222 2017-. OEM NO. : A6540940004. Protects the air conditioner: The filter protects your car's air，conditioning system from dust and dirt, helping it to stay cleaner. This product boosts your automotive AC's working efficiency, eliminates disagreeable odors, and makes sure you get a cozy, airy driving space. It's straightforward to install and change, delivers long-term protection, and maintains good health for you and your passengers on your trip., Manufacturer: TLVBFPG