Porsche 928 ST1991 Owner's Manual page 17

Front seat adjustments
The correct seating position is all-important
for safe and fatigue-free driving. In order to
satisfy individual requirements, the seat has
infinitely variable adjustment.
We recommend the following procedure for
finding the correct position for the driver's
seat:
18
1. Operate longitudinal adjustment until
your leg is fully stretched with the clutch
pedal depressed while your foot is bent.
2. Adjust desired fore/aft height.
3. Clasp upper portion of steering wheel.
Then adjust backrest inclination so that
both shoulders remain in contact with the
backrest even with your arms fully
stretched.
4. If necessary, correct the longitudinal ad-
justment.
Steering wheel adjustment
For maximum legroom and unobstructed
view of the instruments, the height of the
steering wheel, together with the instrument
cluster unit, can be adjusted.
Release locking lever under instrument clus-
ter for desired positioning (arrow), then lock
securely.