Drivers seat will not move front to back. Till, headrest and up and down works and fuse is OK, 1999 CLK 320

 

look under the seat and make sure that the seat control module is still plugged in, if it is, then you may need a new module.

 

check all fuses. mainly in the trunk by the soare tire....small fuse box with fuses for seats and also some in the front fuse box. usually the fuses in the trunk blow

 

Same thing on my 2003 C240, seat will not move back and forth can hear some type of relay clicking from under the seat when I hit the switch. All other functions work. checked all the wiring, pulled out and reset the connections and checked fuses..........................Could the motor be gone?