[Archived] OBD tools that read key code for 2003 Mercedes Benz M Class

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Need the key code to program a replacement key for my 2003 Mercedes Benz M Class

Hello! We've developed a VIN-based tool to help you get your key code for the 2003 Mercedes Benz M Class. Check it out here: VIN Key Code Generator.

Replies (6)

Struggling with the same issue on my 2003 Mercedes Benz M Class, following this thread.

Appreciate any advice—my 2003 Mercedes Benz M Class won’t recognize the key.

I tried this with my 2003 Mercedes Benz M Class but still no luck. Any suggestions?

Desperate to get my 2003 Mercedes Benz M Class running again. Trying this tonight.

Can’t believe this worked on my 2003 Mercedes Benz M Class. Huge thanks!

My 2003 Mercedes Benz M Class needs a new key but I need the code first. Help!

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