try this:
1.) put the key in the driver's door
2.) push and hold the button
3.) turn the key to lock the car, then to unlock the car (lights on mirror should flash)
4.) release button and remove key.

(courtesy of MB Nashville/ Mark in parts dep't.)

__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4 (Totalled)
Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid