BMW Z4 ROADSTER Owner's Manual page 259

wise, the brake system may overheat and re-
duce braking effect.
You can increase the engine braking effect by
downshifting, going all the way to first gear, if
needed.
Safety information
Warning
Light but consistent pressure on the brake
pedal can lead to high temperatures, brake
wear and possibly even brake system failure.
There is a risk of accident. Avoid placing ex-
cessive stress on the brake system.
Warning
In Neutral or with drive-ready state switched
off, safety functions, for instance engine brak-
ing effect, braking assistance and steering
assistance, may be restricted or not availa-
ble. There is a risk of accident. Do not at-
tempt to drive in idle state or with drive-ready
state switched off.
Brake disk corrosion
Corrosion on the brake disks and contamina-
tion on the brake pads are increased by the
following circumstances:
▷ Low mileage.
▷ Extended stationary periods.
▷ Infrequent use of the brakes.
▷ Aggressive, acidic, or alkaline cleaning
agents.
Corrosion buildup on the brake disks will cause
a pulsating effect on the brakes when braking
slowly - generally this cannot be corrected.
Things to remember when driving
Online Edition for Part no. 01405A88B63 - VI/23
Condensation water under the
parked vehicle
When using the automatic climate control, con-
densation water develops and collects under-
neath the vehicle.
Driving on racetracks
Warning
The vehicle is not designed for use in M Sport
or motorsport-like competition. There is a risk
of accident. Do not use the vehicle for M
Sport or motorsport-like competitions.
Higher mechanical and thermal loads during
racetrack operation lead to increased wear.
Use of the vehicle in M Sport or motor sport
type competition is an improper use of the ve-
hicle and may affect your warranty coverage.
Please consult the "New Vehicle Limited War-
ranty" Booklet for further information on war-
ranty matters.
Before and after driving on a racetrack, have
the vehicle checked by an authorized service
center or another qualified service center or
repair shop.
DRIVING TIPS
259
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