Quote:
Originally posted by Rick Miley
All you folks talking about locksmiths cutting keys or doing them yourself should be aware that the original keys are steel. Do not use a brass replacement key, because it will wear down and the resulting particles will clog up the tumbler.
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I had a replacement key break once in my 300CD, and it only lasted whole 2 years

, but I got it at my local locksmith for $3... So I guess you are right about not using the non-MB replacement keys...