FITMENT - Fit for 1997-2014 Mercedes 300 Series, 1997-2014 Mercedes C-Class, 1997-2014 Mercedes E-Class, 1997-2014 Mercedes S-Class, 1997-2014 Mercedes G-Class,1997-2014 Mercedes M-Class, 1997-2014 M-Class, 1997-2014 R-Class, 1997-2014 SL Series,1997-2014 Mercedes Spribter.Please verify that your OEM information (FCC ID, frequency, part number) and button layout match ours before purchasing.PROGRAMMING - This remote key fob needs to be cut, programmed, and paired by a local locksmith or hardware shop. Once programmed, it directly replaces the original key.NOTICE - This Benz replacement key fob is an aftermarket part. It's brand new and does not have a logo on the back.PACKAGE - Each package contains one remote key with a built-in chip and battery, including an uncut emergency insert key. Quality meets or exceeds OEM standards.AFTER SALES - We provide a 12-month replacement or refund. If you have any issues, please contact us via Amazon messages, and we will reply within 12 hours.