M N <( I.J "". rl I.O
"' N I.O rl
Automatic transmission S tronic, tiptronic
Introduction
The automat ic transm iss ion is controlled elec
tronically. The transmission upshifts or down
shifts automatically depending on which drive
program is selected.
When a
moderate driving style is used, the
transmission selects the most econom ical driving
mode. The transmiss ion upshifts at a lower RPM
and downshifts at a higher RPM to improve fuel
efficiency.
The transmission switches to a sporty mode after a kick-down or when the driver uses a
sporty driv
ing style
cha racterized by quick accelerator pedal
movements, heavy acceleration, frequent
changes in speed and traveling at the maximum
speed.
If desired, the driver can also select the gears
manually (tiptronic mode) ¢ page 111.
Various automat ic tr ansm issions may be instal
led, depending on the model:
S tronic transmission
The S tronic is a dual -clutch transmission . Power
is transferred using two clutches that work inde
pendently from one another. They replace the
torque converter used in conventional automat ic
transmissions and a llow the vehicle to accelerate
without a noticeable interruption in traction.
tiptronic transmission
In the tiptronic transmission, power is transfer
r ed by a torque converter.
Automatic transmission
Selector lever positions
Fig. 116 Disp lay in the instrument cluste r: selector lever
posit ion
T he selec tor lever pos ition engaged appea rs next
to the se lector lever as well as in the instrument
cluster display.
P -Park
In this selector lever position the transmission is
mechanica lly locked . Engage P only when the ve
hicle is
completely stopped¢.& in Driving the
automatic transmission on page 109.
To shift in or out of posit ion P, you must first
press and hold the brake pedal and then press
the release button in the selector lever hand le
whi le moving the selector lever to or from P. You
can sh ift out of this position only with the igni
tion on.
R -Reverse
Select R only when the vehicle is at a full stop
and the engine is running at idle speed¢ .& in
Driving the automatic transmission on
page 109.
Before you move the selector lever to R, press
both the button in the hand le of the selector lev
er
and the brake pedal at the same time.
When the ignition is on, the backup lights illumi
nate when the selector lever is moved into R.
N -Neutral
The transm iss io n is in neutral in this pos ition.
Sh ift to this position for standing with the brakes
applied
¢ .& in Driving the automatic transmis-
sion on page 109. .,.
107
Automatic transmission
-Do not ride the brakes or press the brake
pedal too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re
duces braking performance, increases brak
ing distance or causes complete failure of
the brake system .
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it in
place with the brake pedal or parking brake.
- Never hold the vehicle on an incline with a
slipping clutch. The clutch opens automati
cally when it becomes too hot from the
overload . An indicator lamp
mJ illuminates
and a driver message appears¢
page 112
when the clutch is overloaded.
-If the engine must remain running, never
have any driving position engaged when
checking under the hood. Make sure these
lector lever has securely engaged and is
locked in P with the parking brake set
¢page 218. Otherwise, any increase in en
gine speed may set the vehicle in motion,
even with the parking brake applied.
@ Note
- When stopping on an incline, do not try to
hold the vehicle in place by pressing the ac
celerator pedal while a driving gear is se lected . This can cause the transmission to
overheat and can damage it . Activate the
parking brake or press the brake pedal to
prevent the vehicle from rolling.
- Allowing the vehicle to roll when the engine
is stopped and the selector lever is in N will
damage the transmission because it is not
lubricated under those circumstances.
@ Tips
For safety reasons, the parking brake is re
leased automatically only when the driver's
safety belt is engaged in the buckle.
110
· Hill descent control
Hill descent control assists the driver when driv
ing down hills .
Hill descent control is activated when the selec
tor lever is in the D or S posi tion and you press
the brake pedal. The transmission automatically selects a gear that is suitable for the incline . Hill
descent control tries to maintain the speed ach
ieved at the time of braking, within physical and
technical limitations. If may still be necessary to
adjust the speed with the brake pedal.
Hill descent control switches off once the hill lev
els out or you press the accelerator pedal.
On vehicles with a cruise control system*
¢
page 83, hill descent control is also activated
when the speed is set.
A WARNING
Hill descent control cannot overcome physical
limitations, so it may not be able to maintain
a constant speed under all conditions. Always be ready to apply the brakes.
Fuses
Driver side cockpit fuse
assignment
Fig. 212 Driver's side of the cockpit : fuse pa nel w it h plastic
cl ip
Fuse panel @ (black)
No. Equipment
Electromechanical power steer ing, trailer
1 hitch, ionizer, switch strip, seat heating
(rear), electromechanica l park ing brake
Horn, climate control system, Gateway,
2 automatic dimming interior rearview mir-
ror
4 Parking aid, headlight range adjustment
5 Dynamic steering, Electronic Stabilization
Control (ESC)
6 Headlights
7 Adaptive cru
ise control
8 Front passenger's seat sensors, airbag
9 Gateway
10 E
ngine sound, night vision assist, garage
door opener (Homelink), parking aid
11 Video camera image processing
12 Headlights
13 Steering col umn switch module
14 Terminal 15 (luggage compartment)
262
Fuse panel @ (black)
15 Terminal 15 (engine compartment)
16 Starter
Fuse panel @ (brown)
No . Equipment
1 Infotainment
2 Infotainment
3 Front passenger
's seat
5 Airbag, Electron
ic Stabilization Control
(ESC)
6 Anti -theft alarm system
7 Electromechanical parking brake
8 Inter
ior lights
9 Windshie
ld video camera heating , light/
rain sensor
10 Lumbar support (driver's seat)
11 Driver's seat
12 Electronic stabilization control
13 Horn
14 Headlights
15 Front seat heating
16 Dynamic steering
Fuse panel © (red)
No. Equipment
1 Clutch pedal
2 Fuel pump
3 Brake light sensor
4 AdBlue (diesel engine)/engine acoustics
5 Rear door
6 Front
door
7 Electronic stabilization control
8 Windshield wiper motor
9 Headlight washer system
10 Interior lighting, climate control system
11 Headlights
12 Sunroof