422 Technical terms
Emergency spare wheel Narrow spare wheel which is lighter
and takes up less space than a full-
sized spare wheel.
EN 228 European standard for unleaded petrol.
Engine control system Controls the various engine functions,
e.g. the engine speed.
Engine number Number determined by the manufac-
turer and marked on the cylinder
crankcase, by which each engine can
be clearly identified.
Engine oil viscosity Measure of the internal oil friction (vis-
cosity) at different temperatures. The
higher the temperature the oil can tol-
erate without thinning too much, or the
lower the temperature it can tolerate
without thickening too much, the bet-
ter the viscosity characteristics of the
oil. ESP
(E le
ctronic S tability P ro
gram)
Improves driving stability and ->trac-
tion when cornering and in emergency
situat ions, e.g. when there is a risk of
skidding.
GPS (G lo
ba l P ositioning S ystem)
Syste mfor determining geographical
location. A GPS unit located in the vehi-
cle receives satellite signals, compares
them to a digital map (e.g. on CD ROM)
and uses them to det ermine the posi-
tion of the vehicle and for navigation
pur poses.
GSM (G lo
ba l S ystem for M obile Communica-
tions)
International communication standard
for mob ile phones. Thanks to this uni-
form standard, you can also use your
mobile phone abroad. The transmis-
sion method is digital. Head/thorax airbag
This ty peofairbag isloca tedin the
backrests of the front seats and behind
the side panel inthe rear of the vehicle
and pr otects the occupants in the
event ofa side impact. It provides pro-
tection to the head area inaddition to
that provided by the sidebag.
Headlam p range control
Adjusts the headlamps according to ve-
hicle load, so that onco ming traffic is
not dazzled.
Heat erbooster system
Provides additional heat in the vehicle
interior on vehicles with a diesel en-
gine.
Instrum ent cluster
Displays and indicator lamps in the
driver's field of vision, e.g. the rev
counter, the speedometer and the fuel
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