[Completed] How do I tell if my Mercedes S Class W221 uses a transponder?

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How to get the factory key code for my Mercedes S Class W221 to make keys?

Hello! We've developed a VIN-based tool to help you get your key code for the Mercedes S Class W221. Check it out here: VIN Key Code Generator.

Replies (3)

My Mercedes S Class W221's immobilizer is stuck. Hoping this helps.

Trying to figure this out for my Mercedes S Class W221 too!

Finally, something that might help with my Mercedes S Class W221's key code issue!

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