142 Automatic tr an smis sion
- Never hold the veh icle on an incl ine with
a slipp ing clutch . The clutch opens auto
matically when it becomes too hot from
the overload. An indicator lamp@] illu
minates and a dr iver message appears
c!;> page 143 when the clutch is overload
ed.
- If the engine must remain running, never
hav e any driving pos ition engaged when
che cking under the hood. Make sure the
selector lever has secure ly engaged and
is locked in P with the parking bra ke
firmly set¢
page 256. Otherwise, any
increase in engine speed may set the ve
hicle in motion, even with the parking
brake applied.
(D Note
- When stopping on an incline, do not try
to hold the vehicle in place by pressing
the accelerator peda l while a driving gear
is selected. Th is can cause the transm is
s io n to overheat and can damage it. Acti
vate the park ing brake or p ress the brake
pedal to prevent the vehicle from ro lling .
- Allow ing the vehicle to roll when the en
gine is stopped and the selector lever is i n
N w ill damage the transmiss ion be
cause it is no t lub rica ted under those c ir
cumst ances.
Hill descent control
The hill d escent control system assists the
driver when driving down declines.
H ill desce nt co ntrol is activated when these
lecto r lever is in D/S a nd you press the b rake
pedal. The tra nsmission a utomatically se lects
a gea r that is suitab le for the incline. Hill de
scent control tries to maintain the speed ach
i eved at the t ime of brak ing, within physical
a nd techn ica l limitations . It may st ill be nec
essary to adjust the speed with the brakes.
H ill descent co ntrol sw it ches off once the de
cline levels out or you press t he accelerator
pedal. When the speed is set in the cruise con
trol
system
c!;> page 113, hill descent contro l is al
so act ivated.
A WARNING
--
Hill descent control cannot overcome
physical lim itations, so it may not be ab le
to maintai n a co nstant speed under all
conditions . A lways be ready to apply the
b rakes .
· Manual shift program
Using the manual shift program you can
manually select gears.
Fig. 1 63 Center conso le: sh ift in g the gears m an ually
Fig . 1 64 St ee rin g whee l: S h ift paddle s•
Gear selection with selector lever
The tiptronic mode can be sel ected either w ith
the vehicle stat io na ry or on t he move.
.,. Push the se lector lever to the right from D.
An
M appears in the instrument cluster dis
play as soon as the transmission has shifted .
.,. To upshift, push the se lecto r lever forwa rd
t o the plu s position
0 c!;> fig. 163 .
.,. To downsh ift, pus h the lever to the min us
position
Q . 1J>-
M
"' 0 ..J
"". rl I.O
"' rl
"' rl
-Antifreeze is poisonous . Always store an
t ifreeze in its or iginal container and well
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con
tainer clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire. Excess coo l
ant will be forced out through the pres
sure re lief va lve in the cap when the en
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze ¢
page 262 must be re
stored as soon as possib le.
@ For the sake of the environment
Drained coolant should not be reused. Al
ways dispose of used coolant while observ ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself
The radiator fan is driven by the engine via the
V-belt . The viscous clutch regulates the speed
of the fan accord ing to the temperature of the
coolant .
An auxiliary electric radiator fan* switches on
and off depending on coolant temperature
and other vehicle operating conditions .
After you switch the engine off, the auxilia ry
fan can continue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢& , if
- the temperature of the engine coolant rises due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment hea ts up because
the vehicle is parked in intense sunlight .
Checking and fillin g 265
A WARNING
-To reduce the risk of personal injury nev
er touch the rad iator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running .
- The auxiliary radiator fan switches on au
tomatically when the engine coolant reaches a certain temperature and will
continue to run until the coo lant temper
ature drops.
Brake fluid
Checking brake fluid level
The brak e fluid lev el can be check ed with a
quick glance.
N
N
-N ,.
:8
Fi g. 247 En gin e compa rtm en t: cover o n the bra ke fluid
reservoir
Before you check anything in the eng ine com
partment ,
always read and heed all WARN
INGS ¢ A in Working in the engine compart
ment on page 256.
.,. Read the brake fluid level from the brake
fluid reservoir ¢
fig. 247, ¢ page 258,
fig. 242.
The brake fluid level must be be
tween the "MIN" and "MAX" markings .
The brake fluid reservoir is located at the rear
partition of the eng ine compartment on the
left side ¢
page 258.
The fluid level may drop slightly after some
time due to t he automatic adjustment of the
brake pads. This is not cause for alarm. ..,_
