BMW 4 Coupe Series Manual page 111

Lumbar support
Principle
The curvature of the seat backrest can be ad‐
justed in a way that it supports the lumbar region
of the spine. The lower back and the spine are
supported for upright sitting position.
Adjusting
▷ Press the front/rear section of
the button:
The curvature is increased/
decreased.
▷ Press the upper/lower section
of the button:
The curvature is shifted up/
down.
Functional limitations
It may not be possible to adjust the lumbar sup‐
port at very high and very low temperatures.
Backrest width
Principle
Adjusting the backrest width may improve lateral
support when taking corners.
General information
The backrest width is changed by adjusting the
side sections of the backrest.
Adjusting
▷ Press the front section of the
button:
The backrest width de‐
creases.
▷ Press the rear section of the
button:
The backrest width increases.
Seats, mirrors and steering wheel
Online Edition for Part no. 01405A392C9 - VI/21
Functional limitations
It may not be possible to adjust the backrest
width at very high and very low temperatures.
Entering the rear
Safety information
Warning
There is a risk of jamming when moving the
seats. There is a risk of injury or risk of damage
to property. Make sure that the area of move‐
ment of the seat is clear prior to any adjust‐
ment.
Warning
Unexpected movements of the rear seat back‐
rest while driving may occur if the rear seat
backrest is unlocked. Vehicle control could be
lost. There is a risk of injury. Fold back and lock
the backrests before driving. Make sure the
backrest engages correctly by slightly moving
forward and back.
Electric forward/backward
adjustment
Fold the seat backrest forward
1. Pull lever up to the stop.
2. Fold the seat backrest forward.
To make the entry to the rear easier, the seat will
automatically move to the most forward position.
CONTROLS
111