Driving, Ignition lock, Engine – BMW Z4 Roadster 2.5i 2005 User Manual

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Driving

Ignition lock

0 Steering locked

This is the only position in which the ignition key
can be inserted or removed.
After removing the key, turn the steering wheel
slightly to the left or right until the lock engages.
If the key is not removed, an acoustic signal
sounds when the driver's door is opened.

Interlock

Vehicles with automatic transmission:
In order to turn the key back to position

0 or to

remove it, move the selector level into position
P first.

1 Steering unlocked

You will find that it is often easier to turn the
ignition key from position

0 to 1 if you move the

steering wheel slightly to help disengage the
detent.
Individual electrical equipment and accessories
are available for use.

2 Ignition switched on

All systems are operational.

3 Starting engine

Engine

Engine idle speed is controlled by the engine
computer system. Increased speeds at start-up

are normal and should decrease as the engine
warms up. If engine speed does not decrease,
service is required.
To prevent the battery from discharging, always
deactivate electrical devices that are not in use.
Switch the ignition off when the vehicle is not
being driven.

Do not leave the engine running in
enclosed spaces. Otherwise, inhaling the

hazardous exhaust gases could lead to uncon-
sciousness and death. The exhaust gases con-
tain carbon monoxide, an odorless and color-
less, but highly toxic gas.
Do not leave the vehicle unattended with the
engine running. An unattended vehicle with a
running engine poses a safety hazard.
Before you leave the vehicle with the engine
running, place the engine in idle first or engage
the P position and apply the parking brake. If
you fail to do this, the vehicle could move.

Starting the engine

Do not press the accelerator pedal while start-
ing the engine.
Do not let the engine warm up in idling position.
Instead, begin to drive at moderate engine
speeds.

Vehicles with manual transmission:
Step on the clutch when starting the vehi-

cle. A lockout prevents the engine from starting
if the clutch is not depressed.

Do not end the starting procedure too early, but
do not continue it for more than 20 seconds.
Release the ignition key immediately when the
engine starts.
If the engine fails to start on the first attempt,
e.g. if it is very hot or cold:
Press the accelerator pedal halfway down.
Cold starts at very low temperatures, below
approx. +5

7/–156, and at high altitudes,

above 3,300 ft/1,000 m: