C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Smart Key / replace outer case

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Old Mar 5, 2009 | 03:46 PM
  #1  
michaelscoots's Avatar
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From: Boston, MA
'95 e320 Wagon, '92 300TE
Smart Key / replace outer case

Hi gang,

So, I just bought an '04 C320 4matic wagon. The car rocks but it only came with one key. I ordered a new key and I'd like to spruce up the original key. It came with what looks like dog bites and scratches.

I know that you can purchase keys on ebay and was told that I can swap the inner components so that I have a new case for the key. I know how to remove the battery portion but can't figure out how to split it open to remove the module/board.

Does anyone know how to do this without breaking the module?

thanks!
Michael
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Old Mar 5, 2009 | 07:30 PM
  #2  
bbrain's Avatar
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From: Arizona
1999 Civic Hatchback, 2002 c240, 2003 CLK 500
i was looking at this the other day, i lost my spare key at oktoberfest last year haha

https://mbworld.org/forums/c-class-w...y-c-class.html
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Old Mar 5, 2009 | 09:56 PM
  #3  
Rick's Avatar
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From: Central NJ
C230K Coupe/Orion/C4/C5/CD/AMG Spoiler/V60/TeleAid, 2 MGB's
On my 02 Coupe ....remove the cut metal key, then use that to depress the grey plastic release lever in the cavity the cut key came out of. Slide the battery tray out, then carefully grip the circuit board with a tweezer, hemostat or precision pliers and slide it gently out of the smart key case.

Stuff the guts into the replacement case and you're good to go.
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Old Mar 10, 2009 | 03:58 AM
  #4  
bbrain's Avatar
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From: Arizona
1999 Civic Hatchback, 2002 c240, 2003 CLK 500
just did this to replace my ripped key, thx man

Originally Posted by Rick
On my 02 Coupe ....remove the cut metal key, then use that to depress the grey plastic release lever in the cavity the cut key came out of. Slide the battery tray out, then carefully grip the circuit board with a tweezer, hemostat or precision pliers and slide it gently out of the smart key case.

Stuff the guts into the replacement case and you're good to go.
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Old Apr 11, 2009 | 05:18 PM
  #5  
eddieo45's Avatar
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From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
sorry to hijack this old thread (it shows I searched, at least), but how do I remove/replace the color-coded release button on the key? I've got the battery compartment out, but can't figure out how to remove the blue button so I can switch it with my black one.
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Old Apr 11, 2009 | 07:34 PM
  #6  
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From: California
06 C55, 09 E350
http://cgi.ebay.com/ebaymotors/ws/eB...m=140313506914

Its the housing only new cheaper and it comes with batteries.

Eddie. I just pry that little piece out with a small flat head from the top it has smell teeth that hold it in on the bottom on the inside/side of the key this might not be the best way, but it has worked for me many times.
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