Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6l
Location: CA Bay Area
Mentioned: 9 Post(s)
Quoted: 1057 Post(s)
So you have a key from other car and you wonder why it is not working on yours?
I am afraid your only option is pay dealer for new key. Shop around as the prices can wary quite drastically. Having 2 dealers in 7 miles range I bought the key from the dealer 30 miles away, as I could combine that with other business and the drive save me over $100