Replacement Key Fob
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Newbie
Joined: Nov 2021
Posts: 14
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2021 S580
Replacement Key Fob
I misplaced my only key fob yesterday to my 2021 S580, other one was accidentally packed away in a pod until our new house is completed, so I wanted to see if anyone has purchased one anywhere other than a Mercedes dealership.
Super Member
Joined: Jan 2005
Posts: 759
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From: Boston
AMG
Programming a new key without the original is more expensive since there’s an entire process with Mercedes HQ to open a case, prove we have that exact car and get a code to teach in the key. The keys themselfs are expensive to get and the process to teach in is pricey too. Unfortunately I don’t think you really have another way out, although Costco advise was funny.
Super Member
Joined: Oct 2012
Posts: 538
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From: Hollywood, CA
W209, W124
My current understanding is that locksmiths can make keys up to 2014 models. That anything after is dealer only.
They might make you flatbed it there. Might be cheaper to bust into that Pod.
They might make you flatbed it there. Might be cheaper to bust into that Pod.
Super Member
Joined: Jun 2025
Posts: 784
Likes: 249
From: USA
You can buy a replacement key fob from a reputable locksmith who specializes in modern car keys or from online retailers. However, you will still need to have it professionally programmed by a dealer or a qualified locksmith to work with your car, as Mercedes security requires proprietary programming. The dealership is often the most straightforward, though expensive, solution to ensure it's done correctly.
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