If the start/stop system is used in very high outside temperatures over a long period, the 12-volt
vehicle battery can be damaged.
The engine stop function may be deactivated automatically if the temperature is above around 38°C
(100°F).
In some cases, it may be necessary to restart the engine manually. Follow any corresponding
messages on the instrument cluster display.
The start/stop function is activated automatically if the Eco driving profile is selected on vehicles
with driving profile selection ⇒ Driving profile selection and 4MOTION Active Control .
Always deactivate the start/stop system manually when driving through water.
Troubleshooting
Engine no longer starts automatically
Vehicles with DSG dual clutch gearbox and coasting function: if the engine does not start
automatically, the warning Error: vehicle power system. Please visit workshop can be displayed in
the instrument cluster.
Start the engine manually ⇒ Starting the engine .
Deactivate the start/stop system manually.
Go to a qualified workshop immediately.
Manual gearbox: selecting a gear
Fig. 103 Gear shift pattern of a 5-speed manual gearbox.
Fig. 104 Gear shift pattern of a 6-speed manual gearbox.
Selecting a forward gear
The positions of the individual driving gears are shown on the gearshift
lever ⇒ Fig. 103 or ⇒ Fig. 104 .
Fully depress and hold the clutch pedal.
Move the gear lever to the required position ⇒ .
Release the clutch to engage.
In some countries, the clutch pedal will have to be depressed fully in order to start the engine.
Selecting reverse gear
Reverse gear should be selected only when the vehicle is stationary.
Fully depress and hold the clutch pedal ⇒ .
Move the gear lever to the neutral position and push down.
Push the gear lever fully to the left and then to the front into the reverse gear position ⇒ Fig. 103Ⓡ
or ⇒ Fig. 104Ⓡ .
Release the clutch to engage.
Shifting down
Shifting down when the vehicle is in motion should always take place to the next lower gear and
avoiding high engine speeds ⇒ . At high speeds or high engine speeds, damage to the clutch and
the gearbox could occur if one or more gears are skipped when shifting down gear, even if the clutch
is not released when doing this ⇒ .
WARNING
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This can
cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
Use fast acceleration only if visibility, weather, road and traffic conditions permit, and other road
users are not put at risk due to the acceleration and driving style.
Always adjust your driving style in accordance with the flow of traffic.
When the TCS is switched off, the drive wheels may spin, especially if the road surface is wet,
slippery or dirty. This may result in you no longer being able to steer or control the vehicle.
WARNING
When the engine is running, the vehicle will start to move as soon as a gear is engaged and the
clutch is released. This also applies when the electronic parking brake has been switched on.
Never engage reverse gear while the vehicle is in motion.
WARNING
Shifting gears incorrectly to gears that are too low can lead to a loss of control over the vehicle, with
accidents and serious injuries as a consequence.
NOTICE
Serious damage to the clutch and gearbox could occur if the gear lever of the manual gearbox is
shifted to a gear which is too low when travelling at high speeds or at high engine speeds. This also
applies if the clutch remains depressed and the gears do not engage.
NOTICE
Please note the following points in order to avoid damage and premature wear:
Do not rest your hand on the gear lever when driving. The pressure from your hand is passed onto
the selector forks in the gearbox.
Ensure that the vehicle has come to a full stop before engaging reverse gear.
Always fully depress the clutch pedal when changing gear.
Do not hold the vehicle by riding the clutch on uphill gradients with the engine running.
Changing up a gear early will help to save fuel and minimise engine noise.
Troubleshooting
Clutch slipping
The indicator lamp lights up yellow.
Clutch is not transmitting the full engine torque.
If necessary, remove foot from the clutch pedal.
Clutch overheated
The indicator lamp lights up yellow.
An acoustic warning may also be given ⇒ .
The clutch can overheat, for example if the vehicle pulls off frequently, travels at a crawl for long
periods, or in stop and go traffic.
Overheating is indicated by the warning lamp and in some cases by additional warning lamps and a
text message in the instrument cluster display.
You can continue to drive.
Clutch faulty
The indicator lamp lights up yellow.
The clutch is faulty.
Drive on carefully!
Seek expert assistance. Failure to do so can cause considerable clutch damage.
DSG® dual clutch gearbox
Function of the DSG® dual clutch gearbox
Description
The vehicle is equipped with a DSG® dual clutch gearbox.
The DSG® dual clutch gearbox is a gearbox which uses dual-clutch technology to change gear
automatically. It uses a dual clutch and two gear train halves to enable very fast gear changes with
no loss of torque. The DSG® dual clutch gearbox thus combines the performance and economy of a
manual gearbox with the comfort and convenience of a conventional automatic gearbox.
Function
Engine power is transferred to the drive shaft via the gearbox. In order to change gears, the power
transmission between the engine and the gearbox has to be interrupted. This is what the clutch is
for.
With the DSG® dual clutch system with its two gear train halves, the engine power is always
connected to one gear train half when driving. Before a gear shift, the next-higher or lower gear is
already preselected in the load-free second gear train half. The clutch on the non-driven gear is then
closed, and the other is opened at the same time. This makes very fast gear changes possible.
Thanks to its design, the DSG® dual clutch gearbox is more efficient than an automatic gearbox.
Whereas in an automatic gearbox the torque converter is constantly in use, in the DSG® dual clutch
– Reverse gear
Reverse gear is selected. May be selected only when the vehicle is stationary.
– Neutral
The gearbox is in the neutral position. No force is transmitted to the wheels and the braking effect of
the engine is not available.
– Standard forward driving position
Position : Normal programme.
All forward gears are shifted up and down automatically. The timing of the gear shift is determined
by the engine load, your individual driving style and the speed of the vehicle.
Position : Sport programme.
The forward gears are automatically changed up later and down earlier than in selector lever
position D. This exploits the engine’s full power reserves. The timing of the gear shift is determined
by the engine load, your individual driving style and the speed of the vehicle.
To change between positions D and S, move the selector lever to the rear ⇒ Fig. 105 .
The selector lever will always return to selector lever position D/S. That also works in the Tiptronic
gate ⇒ Changing gear using Tiptronic .
Selector lever lock
P
N
To release the selector lever lock, switch on the ignition and depress the brake pedal. Then press the
lock button in the selector lever handle in the direction of the arrow ⇒ Fig. 105 .
The selector lever lock is not engaged if the selector lever is moved quickly through position N, e.g.
when shifting from reverse to D/S. This makes it possible, for instance, to rock the vehicle backwards
and forwards if it is stuck in snow or mud. The selector lever lock engages automatically if the lever is
in position N for more than approximately one second without the brake being pressed and when
the vehicle is travelling no faster than approximately 5 km/h (3 mph).
WARNING
Selecting the wrong position can cause you to lose control of the vehicle, which can lead to accidents
and serious injuries.
Never depress the accelerator when selecting a position.
When the engine is running and a position is engaged, the vehicle will start moving as soon as the
brake pedal is released.
Never shift to reverse or selector lever position P while the vehicle is moving.
WARNING
Unintentional vehicle movements can cause serious injury.
The driver must never leave the driver seat when the engine is running and a position has been
selected. If you have to leave the vehicle while the engine is running, always switch on the electronic
parking brake and move the selector lever to position P.
If the engine is running and the selector lever is in position D/S or R, the vehicle must be held by the
foot brake. The vehicle will creep forward even when the engine is idling, as power transmission is
even then not fully interrupted.
Never select reverse or selector lever position P when the vehicle is in motion.
Never leave the vehicle in selector lever position N. The vehicle will roll downhill irrespective of
whether or not the engine is running.
NOTICE
If the electronic parking brake is not switched on when the vehicle is stationary and the brake pedal
is released when the selector lever is in position P, the vehicle may move a few centimetres forwards
or backwards.
If the lever is moved accidentally to N when driving, take your foot off the accelerator. Wait for the
engine to reach idling speed in the neutral position before selecting a position again.
If the selector lever is left in any position other than P for long periods when the engine is switched
off, the 12-volt vehicle battery will discharge.
Changing gear using Tiptronic
With a DSG® dual clutch gearbox, Tiptronic allows the gears to be shifted up and down manually.
Kickdown function
The kickdown function enables maximum acceleration in the selector lever position D/S or in the
Tiptronic position.
If the accelerator is depressed fully, the gearbox will automatically shift to a lower gear, depending
on the speed and engine speed. This will make use of the full vehicle acceleration.
With the kickdown function, the gearbox does not shift up to the next gear until the engine reaches
the maximum engine speed for the gear.
When the Eco driving profile is selected in vehicles with driving profile selection ⇒ Driving profile
selection and 4MOTION Active Control and the accelerator is depressed fully beyond the pressure
point, the engine output is automatically regulated to ensure maximum vehicle acceleration.
WARNING
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This can
cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
Always adjust your driving style in accordance with the flow of traffic.
Use the kickdown function or fast acceleration only if visibility, weather, road and traffic conditions
permit, and if other road users are not put at risk due to the acceleration and the driving style.
Please note that the driven wheels could start to spin and the vehicle could skid if the TCS is
switched off and especially if the road is slippery.
WARNING
Never let the brakes rub too often and for too long or operate the brake pedal too often or for too
long. Constant braking will cause the brakes to overheat. This will considerably reduce the braking
power, significantly increase the braking distance and could cause the brake system to fail
completely.
NOTICE
Never let the brakes rub by applying light pressure when it is not necessary. This will increase levels
of wear.
Troubleshooting
Distance from vehicle ahead too close
The warning lamp lights up red.
Brake request by ACC ⇒ Adaptive Cruise Control (ACC) .
The brake pedal was not depressed or not fully depressed.
Brake immediately.
Gearbox overheated
The indicator lamp lights up yellow.
A signal tone may also be given. A text message may also be shown on the instrument cluster
display.
The DSG® dual clutch gearbox can become too hot, for example, if the vehicle pulls off regularly,
during long periods at crawling speed, or in stop-and-go traffic.
Do not drive on!
Allow the gearbox to cool down in selector lever position P⇒ .
Do not drive on if the indicator lamp does not go out.
Seek expert assistance. Failure to do so could result in considerable damage to the gearbox.
Releasing the selector lever lock manually
If the power fails in the vehicle (for example if the 12-volt vehicle battery is flat) and the vehicle has
to be towed, the selector lever lock must be released manually. Seek expert assistance for this.
The manual release mechanism is located under the cover of the gearshift gate.
Removing the cover of the gearshift gate:
Switch on the electronic parking brake. If the electronic parking brake cannot be switched on, the
vehicle will have to be prevented from rolling away using other means.
Switch off the ignition.
Carefully pull the cover upwards in the area around the selector lever gaiter with connected
electrical wiring ⇒ Fig. 108 .
Pull the cover up and over the selector lever ⇒ .
Depending on the vehicle equipment, there are two possible manual release mechanism variants.
Releasing the selector lever lock manually:
Using the flat blade of the screwdriver from the vehicle toolkit, carefully push the release lever in the
direction of the arrow and keep it in this position ⇒ Fig. 108 .
Press the lock button on the front of the selector lever and move the selector lever into position N.