[Recommended Fix] Looking for someone who got MercedesBenz 420SEL code without dealership

741 views - Last reply: April 03, 2025
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How to get my MercedesBenz 420SEL's key code to program replacement keys?

Hello! We've developed a VIN-based tool to help you get your key code for the MercedesBenz 420SEL. Check it out here: VIN Key Code Generator.

Replies (4)

I’m in the same boat with my MercedesBenz 420SEL. This looks promising.

Does anyone know if this works on push-start MercedesBenz 420SELs?

Using this on my MercedesBenz 420SEL now. Hope it works.

Anyone got tips on key code retrieval for a MercedesBenz 420SEL?

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Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
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