Where are the bolts to remove the front seats on a 1987 300E ? I do not have a parts list and want to know if I need to look under the chassis for removal bolts, I need to patch some broken springs and worn stuffing, thanks to all in advance

__________________
Jerry

2004 SL500 Black 55K Miles
2002 s500 Black 90K Miles
1986 300E Gold 233K Miles
1966 Twin Cessna 320D
1989 Jeep Cherokee 233K Miles
1994 Ford Van E150 399K Miles