parking brake MERCEDES-BENZ G55AMG 2011 W463 User Guide

iFor further information about the
automatic transmission, see
( Y page 121).
i If you depress the brake when starting the
engine, pedal travel is unusually long and
there is less pedal resistance.XMake sure that the parking brake is
applied.XTurn the SmartKey to position 3 in the
ignition lock (Y page 117) and release it as
soon as the engine is running.
i You can start the engine without preglow
if the engine is warm.
i You can also use the touch-start function.
To do this, turn the SmartKey to position 3
( Y page 117) and release it immediately.
The engine then starts automatically.
Pulling away
Automatic transmission
GWarning
It is dangerous to shift AUTOTRONIC out of
parking position P or neutral position N if the
engine speed is higher than idle speed. If your
foot is not firmly on the brake pedal, the
vehicle could accelerate quickly forward or in
reverse. You could lose control of the vehicle
and hit someone or something. Only shift into
gear when the engine is idling normally and
when your right foot is firmly on the brake
pedal.
! Only shift the automatic transmission to
reverse gear R or park position P when the
vehicle is stationary. Otherwise, the
automatic transmission could be damaged.
i It is only possible to shift the automatic
transmission from position P to a different
position if you depress the brake pedal.
Only then is the selector lever lock
released.
XDepress the brake pedal and keep it
depressed.XShift the automatic transmission to
position D or R.
i
Before driving off, wait until the gear
change is fully completed.
XRelease the parking brake ( Y page 135).XRelease the brake pedal.XCarefully depress the accelerator pedal.
!
Do not depress the accelerator pedal
while depressing the brake pedal. This
impairs engine performance and results in
premature wear on the brake system and
drivetrain.
! If a warning tone sounds and the
Release Park. Brake message appears
in the multifunction display, the parking
brake is still applied. Release the parking
brake.
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic
locking feature ( Y page 165).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill start assist
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle for a short time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and depress it before the vehicle begins to
roll.
118DrivingDriving and parking

GWarning
Never leave the vehicle when it is held by hill
start assist. After approximately one second,
hill start assist will no longer brake your
vehicle and it could roll away.
XTake your foot off the brake pedal.
i Once you have taken your foot off the
brake pedal, the vehicle is held for around
one second.
XPull away.
Hill start assist will not function if:
R you are pulling away on a level road or a
downhill gradient.
R the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning.
Driving119Driving and parkingZ

ProblemPossible causes/consequences and M SolutionsThe engine is not
running smoothly and
is misfiring.There is a malfunction in the engine electronics or a mechanical
component of the engine management system.XOnly depress the accelerator pedal slightly.XHave the cause rectified immediately at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.The coolant
temperature gauge
shows a value above
248 ‡(120 †).
Additionally, a display
message may appear in
the multifunction
display and a warning
tone may sound.The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.XStop as soon as possible and allow the engine and the coolant
to cool down.XCheck the coolant level ( Y page 217). Observe the warning
notes as you do so and add coolant if necessary.Automatic transmission
Important safety notes
GWarning
It is dangerous to shift AUTOTRONIC out of
parking position P or neutral position N if the
engine speed is higher than idle speed. If your
foot is not firmly on the brake pedal, the
vehicle could accelerate quickly forward or in
reverse. You could lose control of the vehicle
and hit someone or something. Only shift into
gear when the engine is idling normally and
when your right foot is firmly on the brake
pedal.
GWarning
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in drive wheel slip and reduced vehicle
control. Your vehicle's ABS will not prevent
this type of loss of control.
GWarning!
Keep in mind that turning off the engine alone
only will shift AUTOTRONIC into neutral
position N automatically.
Always shift AUTOTRONIC into park position
P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
i Bear in mind that the power transmission
between the engine and the transmission
is interrupted when the engine is switched
off. Therefore, to prevent the vehicle from
rolling away, shift the automatic
transmission to position P and apply the
parking brake when the engine is switched
off and the vehicle is stationary.
Automatic transmission121Driving and parkingZ

Selector lever
Overview of transmission positions
Selector lever
PPark position with selector lever lockRReverse gearNNeutralDDrive
Transmission position display
:Transmission position/shift range;Transfer case position
Current shift range : and current transfer
case position ; are shown in the instrument
cluster display.
! If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether
the desired transmission position is
engaged. Select transmission position D.
Do not restrict the shift range.
Displays on the cover beside the selector
lever also indicate the current position of the
selector lever.
The displays light up when the SmartKey is
inserted into the ignition lock. The displays go
out when the SmartKey is removed from the
ignition lock.
When the selector lever is in position D, you
can influence the gearshifts made by the
automatic transmission by:
R restricting the shift range
R changing gear yourself
Transmission positions
BPark position
Do not shift the transmission into
position P(Y page 134) unless the
vehicle is stationary. The parking
lock should not be used as a brake
when parking. In addition to
engaging the parking lock, you
must always apply the parking
brake to secure the vehicle.
i The SmartKey can only be
removed if the transmission is in
position P. When there is no
SmartKey in the ignition lock, the
selector lever is locked in
position P.
If the vehicle electronics are
malfunctioning, the selector lever
may be locked in position P. To
release a locked selector lever, see
"Manual override of parking lock"
( Y page 126).
Have the vehicle electronics
checked immediately at a qualified
specialist workshop, e.g. an
authorized Mercedes-Benz Center.CReverse gear
Only shift the transmission to R
when the vehicle is stationary.122Automatic transmissionDriving and parking

ANeutral
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
Do not shift the transmission to N
while driving. Otherwise, the
automatic transmission could be
damaged.
If ESP ®
is deactivated or faulty:
only shift the transmission to
position N if the vehicle is in danger
of skidding, e.g. on icy roads.
If you want to engage the transfer
case, shift briefly into N
( Y page 126).
! Rolling in neutral N can damage
the drive train.7Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gears
The automatic transmission shifts to the
individual gears automatically when it is in
transmission position D. This automatic
gearshifting behavior is determined by:
R a shift range restriction, if selected
R the position of the transfer case ( HIGH or
LOW )
R the position of the accelerator pedal
R the road speed
Driving tips
Accelerator pedal position
Your style of driving influences how the
automatic transmission shifts gear:
R little throttle: early upshifts
R more throttle: late upshifts
Kickdown
Use kickdown for maximum acceleration.
XDepress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.XEase off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
Working on the vehicle
GWarning
When working on the vehicle, engage the
parking brake and shift AUTOTRONIC into
park position P. Otherwise the vehicle could
roll away which could result in an accident
and/or serious personal injury.
Shift ranges
Introduction
When the automatic transmission is in
position D, it is possible to restrict or
derestrict the shift range ( Y page 123).
Automatic transmission123Driving and parkingZ

Problems with the automatic transmissionProblemPossible causes/consequences and M SolutionsThe acceleration ability
is deteriorating.
The transmission no
longer changes gear.The transmission is in emergency mode.
It is only possible to shift into second gear and reverse gear.XStop the vehicle.XShift the transmission to position P.XTurn the SmartKey to position 0 in the ignition lock.XWait at least 10 seconds before restarting the engine.XShift the transmission to position D or R.
If D is selected, the transmission shifts into second gear; if R is
selected, the transmission shifts into reverse gear.XHave the transmission checked at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Service Center,
immediately.You hear a warning
tone.You have:
R switched off the engine
R opened the driver's door
R not moved the selector lever to position PXMove the selector lever to P.Releasing the parking lock manually
In the event of a malfunction, it is possible to
release the selector lever lock manually to
move it out of position P, e.g. if you wish to
have the vehicle towed.XApply the parking brake.XInsert a suitable implement : into the
opening protected by the flap.XPress implement : downwards and
simultaneously move the selector lever out
of position P.XRemove implement :.
The selector lever can now be moved freely
until it is returned to position P.
i
The protective flap only closes completely
if you briefly press to selector lever towards
D- .
Transfer case
General notes
The vehicle has permanent all-wheel drive.
The front and rear axles are being constantly
driven.
For further information on driving off-road,
see ( Y page 142).
126Automatic transmissionDriving and parking

Rthe automatic transmission is in selector
lever position N.
R you are driving no faster than 25 mph
(40 km/h).
You could otherwise damage the transfer
case.XPush the transfer case switch to LOW.
When the shift procedure is complete, the
L transfer case position appears in the
multifunction display.XShift the transmission to position D.
From LOW to HIGH
! Only carry out the gear selection if:
R the engine is running.
R the vehicle is rolling.
R the automatic transmission is in selector
lever position N.
R you are driving no faster than 43 mph
(70 km/h).
You could otherwise damage the transfer
case.
XPush the transfer case switch to HIGH.
When the shift procedure is complete, the
H transfer case position appears in the
multifunction display.
If the gear change is not completed, the
following messages could appear in the
display:
R TC Shift Conditions Not Fulfilled
You have not met one or more shift
conditions.
R TC In Neutral
The transfer case has canceled the gear
change process and is in N. The N transfer
case position appears in the multifunction
display.
GWarning!
If the transfer case is in Neutral, the park
position P of the automatic transmission will
not hold the vehicle. The parking brake must
be engaged to hold the vehicle in place.
R TC Shift Procedure Canceled
The transfer case has not performed the
gear change process.XCarry out the gear change process again.
Make sure to meet all conditions for
changing gears.
R Transfer Case Service Required
There is a malfunction in the transfer case.
XDo not shift the transfer case.XHave the vehicle checked at a qualified
specialist workshop as soon as possible,
e.g. at an authorized Mercedes-Benz
Center.
Shifting to neutral
GWarning!
If the transfer case is in Neutral, the park
position P of the automatic transmission will
not hold the vehicle. The parking brake must
be engaged to hold the vehicle in place.
XTurn the SmartKey to position 2 in the
ignition lock.XApply the parking brake.XDepress the brake pedal.XMove the selector lever to
position N (Y page 122).XPush the transfer case switch to LOW for
about 30 seconds.
When the shift procedure is complete, the
N transfer case position appears in the
multifunction display.
i If the transfer case is in N, the SmartKey
is in the ignition lock and you open the
driver's door, the TC In Neutral message
appears in the multifunction display. If you
then release the parking brake, a warning
tone will sound.
128Automatic transmissionDriving and parking

Problems with the fuel and fuel tankProblemPossible causes/consequences and M SolutionsFuel is leaking from the
vehicle.GRisk of explosion or fire
The fuel line or the fuel tank is defective.
XTurn the key to position 0 (Y page 117) in the ignition lock
immediately and remove it.XDo not restart the engine under any circumstances.XConsult a qualified specialist workshop.The fuel filler flap
cannot be opened.The fuel filler flap is not unlocked.
or
The key batteries are discharged.XUnlock the vehicle ( Y page 62).
or
XUnlock the vehicle using the mechanical key ( Y page 63).XOpen the rear door.XManually unlock the fuel filler flap using the emergency release
( Y page 133).The fuel filler flap is unlocked, but the opening mechanism is
jammed.XManually unlock the fuel filler flap using the emergency release
( Y page 133).XConsult a qualified specialist workshop.Parking
Important safety notes
GWarning
Do not park this vehicle in areas where
combustible materials can come into contact
with the hot exhaust system. Do not park the
vehicle on dry grassland or harvested grain
fields. Combustible materials, such as grass,
hay or leaves could be ignited by the hot
exhaust system and cause a vehicle fire.
Unintended vehicle movement can cause
serious personal injury or damage to the
vehicle or the vehicle drivetrain. To reduce
such risks, always do the following before
turning off the engine and leaving the vehicle:
R keep your right foot on the brake pedal.
R engage the parking brake.
R shift the automatic transmission into park
position P.
R slowly release the brake pedal.
R when parked on an incline, always turn the
front wheels towards the road curb.134ParkingDriving and parking

Rturn the SmartKey in the ignition lock to
position 0 and remove the SmartKey from
the ignition lock.
R take the SmartKey with you and lock the
vehicle when leaving.
Switching off the engine
GWarning
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
GWarning!
Keep in mind that turning off the engine alone
only will shift AUTOTRONIC into neutral
position N automatically.
Always shift AUTOTRONIC into park position
P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
XShift the transmission to position P.XTurn the SmartKey to position 0 in the
ignition lock and remove it.
The immobilizer is activated.XApply the parking brake firmly.
i The SmartKey can only be removed if the
automatic transmission is in position P.
Parking brake
GWarning
Engaging the parking brake while the vehicle
is in motion can cause the rear wheels to lock
up. You could lose control of the vehicle and
cause an accident. In addition, the vehicle's
brake lights do not light up when the parking
brake is engaged.
GWarning!
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it with
you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Children could
release the parking brake and/or shift the
automatic transmission out of park position
P , either of which could result in an accident
and/or serious personal injury.
XTo apply: pull parking brake ; up firmly.
When the engine is running, the $ (USA
only) or J (Canada only) indicator lamp
lights up in the instrument cluster.XTo release: depress the brake pedal and
keep it depressed.
The selector lever lock is released.XPull parking brake ; up firmly.XPress release button : on parking
brake ; and move the parking brake down
to the stop.
When the ignition is switched on or the
engine is running, the $ (USA only) or
J (Canada only) indicator lamp goes out
in the instrument cluster.
Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged
by exhaustive discharge.
Parking135Driving and parkingZ

pedals. You could then no longer brake or
accelerate. This could lead to accidents and
injury.
Rolling with the engine switched offGWarning!
There is no power assistance for the steering
and the brake when the engine is not running.
Steering and braking requires significantly
more effort and you could lose control of the
vehicle and cause an accident as a result.
Do not turn off the engine while the vehicle is
in motion.
Exhaust check
GWarning
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency
when they are maintained exactly in
accordance with the manufacturer's
specifications. For this reason, all work on the
engine must be carried out only by qualified
and authorized Mercedes-Benz technicians.
The engine settings must not be changed in
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the
Mercedes-Benz service requirements. Details
can be found in the Service Booklet.
Brakes
Important safety notesGWarning!
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in drive wheel slip and reduced vehicle
control. Your vehicle’s ABS will not prevent
this type of control loss.
Do not engage the transfer case in position
LOW when driving on ice or packed snow. At
speeds below 18 mph (30 km/h) vehicle
steering is adversely affected by the Off-road
ABS.
Downhill gradients
! On long and steep gradients, you must
reduce the load on the brakes by shifting
early to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overheating and excessive
wear of the brakes.
When you take advantage of the engine
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road
surface. This could cause damage to the
drive train. This type of damage is not
covered by the Mercedes-Benz warranty.
Heavy and light loads
GWarning
Depressing the brake pedal constantly results
in excessive and premature wear to the brake
pads.
It may also cause the brakes to overheat,
seriously impairing their effectiveness. It may
then not be possible to stop the vehicle in
sufficient time to avoid an accident.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the
airflow to cool the brakes more quickly.
Driving tips137Driving and parkingZ