3x Micro Switch Button For Your Key Fob to fit MERCEDES SMART CARS and A B C E S CLK ML A209 W164 W245 W212 W204 etc. These switches are a direct replacement for damaged buttons on your Mercedes key fob. Please check if your switches are the 2 solder tab type for which these are fully compatible.  These are better than the originals as they are also dust proof. ( your key should look like photo 2 or 3). (Please click here if you require the 4 tab switches). They require the old switches to be desoldered and the new ones soldered in their place. An easy repair for your damaged key fob. Thanks for looking.