24 Instruments and warning /indicator lights
to ice on the ro ad ¢ & . If the vehicle is
stationary, o r if you are dr iving at a very
l ow speed, the tempe rat ure shown in the
display might be slightly higher t han the
actua l outside temperature. This is
ca used by the heat being rad iated from
t h e eng ine.
- You can se lect the un its used for temper
atu re, speed and other measurements in
the MMI.
- Fo r information on the audio/video and
nav iga tion* functions, refer to the sepa
r ate MMI owner's manual.
Operation
The driver information system is operated us
ing the buttons on the multifunction steering
wheel.
ffi
------,±.
~
Fig. 6 Multifunct ion steer ing wheel: ope rat ing the driv
e r info rmation system
Fi g. 7 Driver infor mat ion syste m: opening t he veh icle
functio ns me nu
Operating concept
.. Swi tch the ign itio n on.
.. To switch between the tabs, press the ro cker
swi tch @ to the left o r right¢
fig. 6.
.. To access additional in format io n be low or
above, rotate the thumbw heel @ dow n or
up. ..
To confirm a selec tion, press the thumb
wheel @.
Accessing Vehicle functions
.. Sele ct the first tab with the ro cke r swit ch
@.
.. Press the button 1::::L Th e Vehicle function s
menu appears¢ fig . 7.
.. To select a menu item, turn and press t he
thumbwhee l@ .
Resetting values to zero
.. Sele ct the on-board computer / Efficiency
program
menu item in the Vehicle func
tions
men u.
.. You can now select between the long-term
memory and short-term memory.
.. To reset the values in a memory, press and
hold the thumbw heel @ for one second.
The last function selected d isp lays when you
switch the ignition on .
On-board computer
You can ca ll up the followi ng i nformation in
the on -board computer:
- Date
- Dr iv ing t ime (h) from the short-term memo-
ry
- Average consumption in MPG ( l/100 km)
from the short-te rm memory
- Average speed i n mph (km/h) from the
short-te rm memory
- Distance driven in miles (km) from the
short-term memory
- Current fuel consumption in MPG ( l/100
km)
- Short-term memory overview
- Long-te rm memory ove rview
T he short-te rm memory collects dr iv ing in for
mation from the time the ignition is switched
on unti l it is switched off. If you continue driv
ing within two ho urs after switch ing the ign i
tion off, the new values are incl uded when cal
cu lating the cu rrent trip information .
Unli ke the short-term memory, the long-term
memo ry is not erased automatically. Yo u can .,..
Fewer short trips
Fuel consumption will always be relatively
high on short trips.
11-Try to avoid driving short distances with a
cold eng ine.
The engine and catalyt ic converte r have to
reac h their optimal
operating temperature to
reduce fuel consumption and noxi ous emis
sions effective ly .
Just afte r starting, a cold engine in a mid-size
car only achieves a f uel econ omy of 6-8 miles
per gallo n (30-40 l/100 km). Afte r about a
ha lf a m ile, fuel economy climbs to 12 mpg
(20 l/100 km). Afte r abo ut
2 .5 m iles ( 4 km),
the eng ine is a t its proper ope rat ing temp era
ture a nd fue l economy has rea ched a no rm al
l eve l. So you can see th at you sho uld a void
short tr ips w heneve r possib le .
The
outside temperature is also critical in this
r egard. Your car co nsum es more fuel in the
w in ter th an in the summer.
Driving and environment 201
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