Hey there R Leo, if you search my old posts there are pics, but are you going 115 into 123 or the other way? I'll try to find the post..O.K didn't have pics but heres a paste of the post


.I just finished putting the front seats from an '82 123 240d into my '76 116. They don't exactly slip right in. You have to unscrew the rails on both seats, then on the passenger seat drill out the rivet holding the rear riser and enlarge the hole to match the bolt size. On the front you just plain snap off the square metal riser and then the spacing fits the bolt holes. On the driver side remove the springs on the height adjuster or its too hard to line up the holes to unscrew the rails, then drill out the insert that fills the front hole, enlarge the back holes and then after all that it slips right in!

That's 123 seats going into 115...