Subaru 2007 Tribeca Bedienungsanleitung PDF herunterladen (Seite 266)

Driving tips 8-3

8

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Due to the expansion and contraction

of the metals used in the manufacture

of the exhaust system, you may hear a

crackling sound coming from the ex-

haust system for a short time after the

engine has been shut off. This sound is

normal.

Catalytic converter

The catalytic converter is installed in the

exhaust system. It serves as catalyst to

reduce HC, CO and NOx in exhaust gas-

es, thus providing cleaner exhaust.

To avoid damage to the catalytic convert-

er:

y Use only unleaded gasoline. Even a

small amount of leaded gasoline will dam-

age the catalytic converter.

y Never start the engine by pushing or

pulling the vehicle.

y Avoid racing the engine.

y Never turn off the ignition switch while

the vehicle is moving.

y Keep your engine tuned-up. If you feel

the engine running rough (misfiring, back-

firing or incomplete combustion), have

your vehicle checked and repaired by an

authorized SUBARU dealer.

y Do not apply undercoating or rust pre-

vention treatment to the heat shield of cat-

alytic converter and the exhaust system.

y If at any time you suspect that ex-

haust fumes are entering the vehi-

cle, have the problem checked

and corrected as soon as possi-

ble. If you must drive under these

conditions, drive only with all win-

dows fully open.

y Keep the rear gate closed while

driving to prevent exhaust gas

from entering the vehicle.

y Avoid fire hazards. Do not drive or

park the vehicle anywhere near

flammable materials (e.g. grass,

paper, rags or leaves), because

the catalytic converter operates at

very high temperatures.

y Keep everyone and flammable

materials away from the exhaust

pipe while the engine is running.

The exhaust gas is very hot.

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