If the seat has a tilt, probably broken spring or springs.
my 85 suddenly had a tilt to the right back in 07. I removed the seat from the car. the seat back, the seat cushion fabric and pad to reveal 2 broken springs.

Find another 123 in the wrecking yards with a good passenger seat bottom. that doesn`t get the use as the drivers, plus the out side edge of the seat will be next to the consol on the drivers side.

think I picked up bottom for $12.00

I used my seat tracks/rails and switched them over. the used ones were gunked up/rust. use your digital camera as you go throughthe sequence of dissambly. there are 3 screws that have to be lined up just right to see them on each side to get the tracks off the bottom.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works