180Driving
WARNING
● When the engine is running, the vehicle will start to move as soon as
a gear is engaged and the clutch released.
● Never select the reverse gear when the vehicle is in motion. Risk of
accident.
Note
● Do not rest your hand on the gear lever while driving. The pressure of
your hand could cause premature wear on the selector forks in the gearbox.
● When changing gear, you should always depress the clutch fully to
avoid unnecessary wear and damage.
● Do not hold the car “on the clutch” on hills. This causes premature wear
and damage to the clutch.
● Do not leave your foot on the clutch pedal; although the pressure may
seem insignificant, it can cause the premature wear of the clutch plate. Use
the foot rest when you do not need to change gear.
Automatic gearbox* Introduction
multitronic ®
, tiptronic (7-speed gearbox)
Vehicles with multitronic ®
gearbox
The vehicle is equipped with an electronically controlled continuously varia-
ble transmission (multitronic ®
). Unlike conventional automatics, the gear
ratios are not shifted in fixed steps but continuously variable. This gives
smoother transmission and makes for better fuel economy. The gearbox selects the gear ratio and shifts up or down automatically ac-
cording to the gear change programmes stored in the control unit
⇒ page 184.
If desired, you can also select the gears
manually (tiptronic mode)
⇒ page 185.
Please note that in vehicles with a multitronic® gearbox, torque is transmit-
ted via a multi-plate clutch, and not via a torque converter as on convention-
al automatics. This means that the vehicle will not “creep” as much as con-
ventional automatics when the engine is idling if you stop temporarily with
the selector lever in position D, S or R.
Vehicles with tiptronic gearbox
The vehicle is equipped with an electronically controlled 7-speed automatic
gearbox. The gearbox changes up and down automatically.
If desired, you can also select the gears manually (tiptronic mode)
⇒ page 185.
182Driving
Selector lever positions
This section covers all the selector lever positions.
Fig. 147 Display: Selec-
tor lever positions
The current selector lever position is shown on the instrument panel dis-
play.
P - parking lock
This locks the driving wheels mechanically. The parking brake should only
be used when the vehicle is already stopped
⇒
.
The interlock button (the button on the selector lever handle) must be
pressed in and the brake pedal must be depressed before moving the selec-
tor lever either in or out of position P. This is only possible when the ignition
is on.
R - Reverse gear
When reverse gear is engaged the gearbox automatically selects the lowest
gear ratio.
The reverse gear may be engaged only when the vehicle is stationary and
the engine is idling ⇒
. To move the selector lever to position R, press in the interlock button
and at
the same time press the brake pedal. Depending on the model, one or two
reverse lights will come on in selector lever position R (when ignition is
switched on).
N - Neutral (idling)
In this position the gearbox is in neutral ⇒
.
D - Drive (forward)
In this position, the gearbox selects the optimal transmission ratio depend-
ing on the engine load, speed and the dynamic gear regulation programme
(DRP).
Press the brake pedal when moving the selector lever from N to D if the ve-
hicle is stationary or at speeds below 5 km/h ⇒
.
Under certain circumstances (e.g. when driving in mountains or towing a
trailer or caravan) it can be advantageous to switch temporarily to tiptronic
mode ⇒ page 185, so that the gear ratios can be selected manually to suit
the driving conditions.
S - Sport position
To drive in sports mode, select the position S. The engine power reserve is
used to its maximum. When accelerating the gear shifts will be noticeable.
Press the brake pedal when moving the selector lever from N to S if the vehi-
cle is stationary or at speeds below 5 km/h ⇒
.
WARNING
● Never move the selector lever to R or P when driving. Failure to do so
could result in an accident.
● In selector position D or S the vehicle must always be held with the
foot brake when the engine is running. This is because an automatic
gearbox still transmits power even at idling speed, and the vehicle tends
192Intelligent technology
Brakes
General notes
New brake pads
New brake pads do not provide optimal performance during the first
200 km; first they must be “run in”. However, the reduced braking capacity
may be compensated by pressing on the brake pedal a little harder. Avoid
overloading the brakes during run-in.
Wear
The rate of wear on the brake pads depends a great deal on how you drive
and the conditions in which the vehicle is operated. Negative factors are, for
instance, city traffic, frequent short trips or hard driving with abrupt starts
and stops.
Wet roads or road salt
In certain conditions, such as in heavy rain, or after washing the vehicle or
driving through water, the full braking effect can be delayed by moisture (or
in winter by ice) on the discs and brake pads. In this case the brakes should
be dried by pressing the brake pedal several times.
The effectiveness of the brakes can also be temporarily reduced if the vehi-
cle is driven for some distance without using the brakes when there is a lot
of salt on the road in winter. In this case, the layer of salt on the brake discs
and pads has to wear off before braking.
Corrosion
There may be a tendency for corrosion to form on the discs and dirt to build
up on the brake pads if the vehicle is used infrequently or the brakes are
not used very often.
If the brakes are not used frequently, or if rust has formed on the disks, it is
advisable to clean off the pads and disks by braking firmly a few times at a
moderately high speed ⇒
. Faults in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that
one of the two brake circuits has failed. Drive immediately to the nearest
specialised workshop and have the fault repaired. Drive there slowly and re-
member that you will have to apply more pressure on the brake pedal and
allow for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if the brake fluid level is too
low. The brake fluid level is monitored electronically.
WARNING
When applying the brakes to clean off deposits on the pads and discs,
select a clear, dry road. Be sure not to inconvenience or endanger other
road users. Risk of accident.
CAUTION
● Never let the brakes “drag” by leaving your foot on the pedal when it is
not necessary to brake. This overheats the brakes, resulting in longer stop-
ping distances and greater wear.
● Before driving down a long, steep gradient, it is advisable to reduce
speed and change to a lower gear (or move the gear lever to a lower gear
position if your vehicle has automatic transmission). This makes use of en-
gine braking and prolongs the service life of the brakes. If you still have to
use the brakes, it is better to brake firmly at intervals than to apply the
brakes continuously.
Note
If you wish to equip the vehicle with accessories such as a front spoiler or
wheel covers, it is important that the flow of air to the front wheels is not
obstructed, otherwise the brakes can overheat.