[Fixed] Dealer claims 2017 Mercedes Benz CLS 550 key code is proprietary

4853 views - Last reply: May 10, 2025
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Need the key code to program a replacement key for my 2017 Mercedes Benz CLS 550

Hello! We've developed a VIN-based tool to help you get your key code for the 2017 Mercedes Benz CLS 550. Check it out here: VIN Key Code Generator.

Replies (5)

Will this work for older 2017 Mercedes Benz CLS 550s? Mine's a 2009.

Still looking for a reliable way to find the key code on my 2017 Mercedes Benz CLS 550.

Been searching everywhere for help with my 2017 Mercedes Benz CLS 550's key code.

Been stuck with my 2017 Mercedes Benz CLS 550 for weeks. This might be the fix.

I’ve been locked out of my 2017 Mercedes Benz CLS 550 all week. Hope this helps.

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Dealerships can often cut keys using your VIN, but will require proof of ownership. This only works for original factory keys - aftermarket or previously replaced locks won't match. The key will still need programming to start the car if it has a transponder.
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Lost Keys
Dealerships can often cut keys using your VIN, but will require proof of ownership. This only works for original factory keys - aftermarket or previously replaced locks won't match. The key will still need programming to start the car if it has a transponder.
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