[Free Fix] Programmed new key but 2018 Mercedes Benz C 300 still won’t start - code?

3872 views - Last reply: April 11, 2025
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Where's the key code located on a 2018 Mercedes Benz C 300 for key programming?

Hello! We've developed a VIN-based tool to help you get your key code for the 2018 Mercedes Benz C 300. Check it out here: VIN Key Code Generator.

Replies (5)

Fingers crossed this works for my 2018 Mercedes Benz C 300 too.

I think my 2018 Mercedes Benz C 300 has the same issue. Good to know I'm not alone.

I really hope this trick works on my 2018 Mercedes Benz C 300.

Appreciate any advice—my 2018 Mercedes Benz C 300 won’t recognize the key.

Appreciate the tips—trying to unlock my 2018 Mercedes Benz C 300 key code too.

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