This 1 button remote key shell is compatible with Benz Mercedes E /S /SL / W124/ R129. Any existing defects of the electronic core will not be repaired by replacing the shell. The existing parts can be installed from your old key into the new shell. This item is not a remote,it is just a remote key shell case replacement. There is NO interior (remote/electronics/transponder chip)unit inside. Please check your key look the same as the one in our product picture above before purchasing. Type Remote Key Housing Material ABS, Copper Colour Black Battery No Switches No Brand Unbranded/Generic MPN TJ4894833113398 Manufacturer Part Number Does not apply EAN 4894833113398 .
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