That seems like the problem to your SRS light.
If I'm not mistaken, you see:
2 sets of wires, both with 2 wires in them (but 4 slots in each) that are connected under the seat facing the front of the car? If one of those was disconnected, then I'm sure that was your problem. If you hooked it back up, all you need to do is take it to the dealer to reset the system ($90 for me!!). There is no way of turning off the light without taking it in...
2006 E350 w/ 155k miles (Daily Driver)
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)