BMW 4 Series 2023 Owner's Manual page 272

DRIVING TIPS
▷ A slight smoke formation coming from the
exhaust system, even after the engine is
switched off.
▷ Noises, such as those caused by the radia-
tor fan running, even several minutes after
the engine is switched off.
Overrun of the radiator fan for several minutes
is normal even after short trips.
Climate comfort windshield
The marked area is not covered with heat re-
flective coating.
Use the marked area, such as for garage door
opener, devices for electronic fee collection or
payment systems.
Vehicle laminated glass
The vehicle laminated glass provides complete
protection against the harmful effects of ultra-
violet radiation on the skin.
Mobile radio in the vehicle
Warning
Vehicle electronics and mobile communica-
tion devices can influence one another. There
is radiation due to the transmission oper-
ations of mobile communication devices.
There is a risk of injury or risk of damage to
property. If possible, in the car's interior only
use mobile communication devices, such as
mobile phones, with a direct connection to
an external antenna or the Personal eSIM in
272
Things to remember when driving
Online Edition for Part no. 01405A7D166 - II/23
order to prevent mutual interference and to
deflect radiation from the vehicle interior.
Aquaplaning
On wet or slushy roads, a wedge of water can
form between the tires and road surface.
This phenomenon is referred to as aquaplan-
ing. It is characterized by a partial or complete
loss of contact between the tires and the road
surface, ultimately undermining your ability to
steer and brake the vehicle.
Driving through water
General information
When driving through water, follow the follow-
ing:
▷ Only drive through when the combustion
engine is running.
▷ Prevent the combustion engine from shut-
ting down, e.g., by deactivating Auto Start/
Stop.
▷ Drive through calm water only.
▷ Drive through water only up to a maximum
height of 9.8 inches/25 cm.
▷ Drive through water at a maximum of walk-
ing speed, up to 3 mph/5 km/h.
Safety information
NOTICE
When driving too quickly through deep water,
the water can penetrate the engine compart-
ment, the electrical system, or the transmis-
sion. There is a risk of damage to property.
When driving through water, do not exceed
the maximum indicated water level and the
maximum speed for driving through water.
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