2015 MERCEDES-BENZ GL-Class Wiper

X
Align housing cover 0043and turn it clock-
wise until it engages.
X Replace the cover in the front wheel hous-
ing (Y page 138).
High-beam headlamps (halogen head-
lamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise
and pull it out.
X Pull lever 0087upwards and remove bulb
holder 0044.
X Take the bulb out of bulb holder 0044.
X Insert the new bulb into bulb holder 0044.
X Simultaneously press bulb holder 0044and
pull lever 0087downwards.
X Align housing cover 0043and turn it clock-
wise until it engages. Changing the rear bulbs
Opening and closing the service flap Left-hand service flap
Right-hand service flap
You must open the service flap in the cargo
compartment before you can change the
bulbs in the brake lamp.
X To open: release service flap 0043at the top,
e.g. with a screwdriver, and swing it down- ward in the direction of the arrow.
X Right side: remove the first-aid kit before-
hand and pull the parcel net down.
X To close: reinsert service flap 0043. Replacing bulbs
139Lights andwindshield wipers Z

Brake lamp
X
Switch off the lights.
X Open the cargo compartment.
X Open the service flap (Y page 139).
X Turn bulb holder 0043counter-clockwise and
remove it.
X Take bulb out of bulb holder 0043.
X Insert the new bulb into bulb holder 0043.
X Insert bulb holder 0043into the lamp and turn
it clockwise.
X Close the service flap (Y page 139).Windshield wipers
Switching the windshield wipers
on/off
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when the windshield is dry.
If it is necessary to switch on the windshield wipers in dry weather conditions, always
use washer fluid when operating the wind-
shield wipers.
! If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash. !
Intermittent wiping with rain sensor: due
to optical influences and the windshield
becoming dirty in dry weather conditions,
the windshield wipers may be activated
inadvertently. This could then damage the
windshield wiper blades or scratch the
windshield.
For this reason, you should always switch
off the windshield wipers in dry weather. Combination switch
0047
003F Windshield wiper off
0048 0062 Intermittent wipe, low (rain sensor
set to low sensitivity)
0049 0063 Intermittent wipe, high (rain sensor
set to high sensitivity)
004A 00AA Continuous wipe, slow
004B 00A9 Continuous wipe, fast
0084 00D3 Single wipe
006B 00D4 To wipe with washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
In the 0062or0063 position, the appropriate
wiping frequency is set automatically accord- ing to the intensity of the rain. In the 0063
position, the rain sensor is more sensitive
than in the 0062position, causing the wind-
shield wipers to wipe more frequently.
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could
prevent you from observing the traffic condi-
tions. 140
Windshield wipersLights and
windshield wipers

Switching the rear window wiper on/
off Combination switch
0043
00C5 Rear window wiper switch
0048 008E To wipe with washer fluid
0049 ITo switch on intermittent wiping
004A 0To switch off intermittent wiping
004B 00E2 To wipe with washer fluid
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 167).
X Turn switch 0043on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrument cluster. Replacing the wiper blades
Important safety notes G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! Never open the hood/tailgate if a wiper
arm has been folded away from the wind-
shield/rear window.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear window. Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have the wiper blades changed at a qualified
specialist workshop.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades Removing the wiper blades
X Remove the SmartKey from the ignition
lock.
X Fold the wiper arm away from the wind-
shield. X
Firmly press release knob 0043and pull wiper
blade 0044upwards from the wiper arm in the
direction of the arrow. Windshield wipers
141Lights and windshield wipers Z

Installing the wiper blades
X
Position new wiper blade 0043in the retainer
on the wiper arm and slide it into place in
the direction of the arrow.
The wiper blade audibly engages.
X Make sure that the wiper blade is seated
correctly.
X Fold the wiper arm back onto the wind-
shield.
Replacing the rear window wiper blade Removing a wiper blade
X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm 0043away from the rear win-
dow until it engages.
X Position wiper blade 0044at a right angle to
wiper arm 0043.
X Hold wiper arm 0043and press wiper
blade 0044in the direction of the arrow until
it releases.
X Remove wiper blade 0044. Installing a wiper blade
X Place new wiper blade 0044onto wiper
arm 0043.
X Hold wiper arm 0043and press wiper
blade 0044in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade 0044is seated
correctly.
X Position wiper blade 0044parallel to wiper
arm 0043.
X Fold wiper arm 0043back onto the rear win-
dow. 142
Windshield wipersLights and windshield wipers

Problems with the windshield wipers
Problem
Possible causes/consequences and
0050
0050Solutions The windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the SmartKey from the
ignition lock.
or X Switch off the engine using the Start/Stop button and open the
driver's door.
X Remove the cause of the obstruction.
X Switch the windshield wipers back on. The windshield wipers
fail completely. The windshield wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windshield wipers checked at a qualified specialist
workshop. Windshield wipers
143Lights and windshield wipers Z

G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
! AMG vehicles:
at low engine oil temper-
atures below 68 ‡ (+20 †), the maximum
engine speed is restricted in order to pro-
tect the engine. To protect the engine and
maintain smooth engine operation, avoid driving at full throttle when the engine is
cold. Key positions
SmartKey 005A
To remove the SmartKey
0047 Power supply for some consumers, such
as the windshield wipers
0048 Ignition (power supply for all consumers)
and drive position
0049 To start the engine
i The SmartKey can be turned in the igni-
tion lock even if it is not the correct Smart- Key for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO General notes
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS- GO function and a detachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only Driving
167Driving and parking Z

the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart- Key is in the vehicle. This occurs, for example, when starting the engine.
To start the vehicle without actively using the
SmartKey:
R the Start/Stop button must be inserted in
the ignition lock.
R the SmartKey must be in the vehicle.
R the vehicle must not be locked with the
SmartKey or KEYLESS-GO (Y page 83).
Do not keep the SmartKey:
R with electronic devices, e.g. a mobile
phone or another SmartKey
R with metallic objects, e.g. coins or metal
foil
R inside metallic objects, e.g. a metal case
This can impair the functionality of the KEY-
LESS-GO key.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder (Y page 351).
Otherwise, the KEYLESS-GO key will not be
recognized.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
R you will not be able to switch on the ignition
with the Start/Stop button.
R you will not be able to start the engine with
the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the but- ton on the front door (Y page 89), you can
continue to start the engine with the Start/
Stop button.
i The engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for approximately three seconds. This function operates inde-
pendently of the ECO start/stop automatic
engine switch-off function.
Key positions with KEYLESS-GO 0043
Start/Stop button
0044 Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light up. If an indicator lamp does not go out afterstarting the engine or lights up while driving,
see (Y page 328).
If Start/Stop button 0043has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
X To switch on the power supply: press
Start/Stop button 0043once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
i The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button 0043twice
when in this position.
X To switch on the ignition: press Start/
Stop button 0043twice.
The ignition is switched on.
i The ignition is switched off when:
R the driver's door is opened and
R you press Start/Stop button 0043once
when in this position. 168
DrivingDriving an
d parking

Problems with Night View Assist Plus
Problem
Possible causes/consequences and
0050
0050Solutions The picture quality of
Night View Assist Plus
has deteriorated. The windshield wipers are smearing the windshield.
X Replace the wiper blades (Y page 141). The windshield is smeared after the vehicle has been cleaned in a
car wash.
X Clean the windshield (Y page 381). There is windshield chip damage in the camera's field of vision.
X Replace the windshield. The windshield is fogged up on the inside.
X Defrost the windshield (Y page 160). The windshield is iced up.
X De-ice the windshield (Y page 159). There is dirt on the inside of the windshield.
X Clean the inside of the windshield (Y page 381).Lane Tracking package
General notes The Lane Tracking package consists of Blind
Spot Assist (Y page 245) and Lane Keeping
Assist (Y page 247).
Blind Spot Assist General notes
Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from a speed of
approximately 20 mph (30 km/h) . A warning
display in the exterior mirrors draws your
attention to vehicles detected in the moni-
tored area. If you then switch on the corre-
sponding turn signal to change lanes, you will
also receive an optical and audible collision
warning. Blind Spot Assist uses sensors in the rear bumper for monitoring purposes. Important safety notes G
WARNING
Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles which approach with a large speed
differential and overtake your vehicle
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving.
i USA only:
This device has been approved by the FCC as a "Vehicular Radar System". The radar
sensor is intended for use in an automotiveradar system only. Removing, tampering
with, or altering the device will void any Driving systems
245Driving and parking Z