I have a 97 202 and am considering a spare key.

"New W140 W129 W202 "Switch-Blade" Flip Remote Key Fob- $50
(Can be programed for pre 96 cars or retrofited to early W124 and W201)"

Any idea how to program the key for my car - can I do it, does it have to be done by a dealer, and what do they charge if the dealer has to do it?

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport