Power Steering; Brake System - BMW 840Ci Owner's Handbook Manual

Power steering

If the steering is stiff to turn: check oil
level, see Page 98.
If steering is stiff when the steering
wheel is moved rapidly:
Always have the car checked by BMW
Service.
Special instruction for Servo-
tronic*
If steering becomes lighter as speed
increases:
An electronic fault has occurred.
a
If the power assistance should
fail, greater effort will be required at
the steering wheel.c
Brakes
If the warning light for the brake and
steering hydraulics comes on and
LOW BRAKE FLUID is displayed on
the MID:
Brake fluid has been lost from the sys-
tem, causing pedal travel to increase.
Failure of one brake circuit
Brake pedal travel increases and
higher pedal pressure is needed.
The car can still be braked effectively
with the intact brake circuit.
However, you should take the car to
BMW Service without any delay if a
brake system malfunction occurs.
If the warning light flashes and the
MID displays BRAKE ASSIST INACT.,
the following faults may have
occurred:
d If increased brake pedal pressure
is needed: loss of reservoir pres-
sure, no brake servo action
d If the power steering becomes
heavier to turn: loss of system
pressure, no power asistance
d If brake pedal pressure is higher
and the steering heavier to turn:
the hydraulic pump has failed or
the V-belt has broken.
If the MID displays BRAKE LININGS:
The brake pads are worn. Have them
renewed without delay.
a
Use only brake pads approved
by BMW, or else the driving safety can
be impaired.c
Online Edition for Part-No. 01 41 9 790 191 - © 12/98 BMW AG
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