Mercedes S 2001 Used The part is considered rare nowadays and has been discontinued by the company. It is an excellent opportunity for those who own the car and are looking for a rare original part to complete their car's accessories. Reprogramming the card to match your new car is the buyer's responsibility at specialized key programming shops. The very rare original Mercedes Smart Keyless Go Card for modern classic classes such as the 'Whale' S-Class W220 and CL-Class W215 from the late 90s and early 2000s models.