Bmw X5 xDrive35d 2009 Bedienungsanleitung PDF herunterladen (Seite 141)

Driving tips

139

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speed. This is the fastest way for the cold

engine to reach its operating temperature.

Thinking ahead when driving

Avoid unnecessary acceleration and braking.

To do so, maintain the appropriate distance

from the vehicle in front of you. An anticipatory

and smooth driving style reduces fuel con-

sumption.

Avoiding high engine speeds

Driving at a low engine speed reduces fuel con-

sumption and minimizes wear.

Taking advantage of coasting

The flow of fuel is interrupted when coasting.

Switching off engine during longer

stops

Switch off the engine at longer stops such as

traffic signals, railroad crossings, or in traffic

jams. Even having the engine switched off for

approx. 4 seconds results in fuel savings.

Switching off functions currently not

required

Functions such as air conditioning, seat heat-

ing, or rear window defrosting consume a lot of

energy and require additional fuel. Their influ-

ence is particularly pronounced in city traffic

and stop & go operation. For this reason, it is a

good idea to switch these functions off when

they are not really needed.

Having maintenance carried out

Have the vehicle serviced regularly in order to

achieve the optimum economy and service life

of your vehicle. BMW recommends having the

maintenance performed by a BMW Sports

Activity Vehicle Center. Also pay attention to

the BMW maintenance system, refer to

page 263.

General driving notes

Closing liftgate

Operate the vehicle only when the liftgate

is completely closed. Otherwise, exhaust

fumes could enter into the passenger compart-

ment.<

If it is absolutely necessary to drive with the lift-

gate open:

1. Close all windows as well as the glass sun-

roof

*/panorama glass sunroof*.

2. Increase the air volume of the automatic cli-

mate control to a high level, refer to

page 116.

Hot exhaust system

As in all vehicles, extremely high temper-

atures are generated on the exhaust sys-

tem. Do not remove the heat shields installed

adjacent to it, and never apply undercoating to

them. When driving, standing at idle and while

parking take care to avoid possible contact

between the hot exhaust system and any highly

flammable materials such as hay, leaves, grass,

etc. Such contact could lead to a fire, and with it

the risk of serious property damage as well as

personal injury. Do not touch hot tailpipes, as

otherwise there is a danger of burns.<

Diesel particulate filter*

Soot particles are collected in the diesel partic-

ulate filter and are periodically cleared out

through high-temperature combustion. This

cleaning process lasts for several minutes. You

may sometimes notice it by the fact that the

engine temporarily runs a little less smoothly

and requires a somewhat higher engine speed

to achieve the usual power. You may also notice

additional sounds and small amounts of smoke

coming from the exhaust, even for a brief time

after switching off the engine.

Hydroplaning

When driving on wet or slushy roads,

reduce road speed. If you do not, a wedge

of water can form between tires and road sur-

face. This phenomenon is referred to as hydro-

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