BMW 4 Coupe Series Manual page 301

Safety information
Warning
Light but consistent pressure on the brake
pedal can lead to high temperatures, brakes
wearing out and possibly even brake system
failure. There is a risk of accident. Avoid placing
excessive stress on the brake system.
Warning
In idle state or with the engine switched off,
safety functions, for instance engine braking ef‐
fect, braking assistance and steering assis‐
tance, may not be available. There is a risk of
accident. Do not attempt to drive in idle state or
with the engine switched off.
Brake disc corrosion
Corrosion on the brake discs and contamination
on the brake pads are increased by the following
circumstances:
▷ Low mileage.
▷ Extended periods when the vehicle is not
used at all.
▷ Infrequent use of the brakes.
▷ Aggressive, acidic, or alkaline cleaning
agents.
Corrosion buildup on the brake discs will cause a
pulsating effect on the brakes in their response -
generally this cannot be corrected.
Condensation water under the
parked vehicle
When using the automatic climate control, con‐
densation water develops and collects under‐
neath the vehicle.
Things to remember when driving
Online Edition for Part no. 01405A392C9 - VI/21
M440i with M Technology
package: ground clearance
NOTICE
If the ground clearance is insufficient, e.g.,
curbs or underground garage entrances, con‐
tact with vehicle parts, e.g., spoiler, and the un‐
derbody may occur. There is a risk of damage
to property, among other potential damage. En‐
sure that there is sufficient ground clearance
available.
Roof-mounted luggage
rack
General information
Roof racks are available as special accessories.
Safety information
Warning
When driving with a roof load, for instance with
roof-mounted luggage rack, the vehicle's cen‐
ter of gravity is higher, which increases the risk
of the vehicle tipping in critical driving situa‐
tions. There may be a risk of accident or risk of
damage to property. Driving with roof load only
with activated Dynamic Stability Control.
Roof drip rail with flaps
The fixing points are located in the roof drip rail
above the doors.
DRIVING TIPS
301