Page 588 of 761

587 Operation
Vehicle care
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosion protection, such as
MB Anticorrosion Wax, should be applied
to the engine compartment after every
engine cleaning. Before applying, all
control linkage bushings and joints should
be lubricated. The poly-V-belt and all pul-
leys should be protected from any wax.
Vehicle washing
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the vehicle underbody, do
not forget to clean the inner sides of the
wheels.Hand-wash
Do not use hot water or wash your vehicle
in direct sunlight.
Only use a mild car wash detergent,
such as Mercedes-Benz approved Car
Shampoo.
Thoroughly spray the vehicle with a dif-
fused jet of water.
Direct only a very weak spray towards
the ventilation intake.
Use plenty of water and rinse the
sponge and chamois frequently.
Rinse with clean water and thoroughly
dry with a chamois.
Do not allow cleaning agents to dry on
the finish.Automatic car wash
You can have your car washed in an auto-
matic car wash from the start. Automatic
car washes without brushes are prefera-
ble.
To protect the filter system, switch the
automatic climate control to air recir-
culation mode (
page 474).
If the vehicle is very dirty, prewash it be-
fore running it through the automatic car
wash.
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of water, and
a SmartKey with KEYLESS-GO* is in close prox-
imity, i.e. within approximately 3 ft (approxi-
mately 1 m), the vehicle could be inadvertently
locked or unlocked.
!Do not use scouring agents on these parts.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the vehicle.
Do not attempt to wipe the surface with a dry
cloth or sponge.
Otherwise you may scratch or damage the paint.
!Do not clean your vehicle in an automatic
touchless car wash which uses caustic spray.
Otherwise the caustic spray will damage the
paint or ornamental moldings.
!Make sure that the windshield wiper switch
is set to0 (
page 381). Otherwise, e.g. the rain
sensor could activate and cause the wipers to
move unintentionally. This may lead to vehicle
damage.
Due to the width of the vehicle, fold in exterior
rear view mirrors prior to running the vehicle
through an automatic car wash to prevent dam-
age to the mirrors.
Page 594 of 761

593 Operation
Vehicle care
Cleaning the panorama roof with
tilt/sliding panel*
The rear part of the tilt/sliding panel has a
protective layer on the inside.
Use a soft, clean cloth and a mild
window cleaning solution.
An automotive glass cleaner is recom-
mended.Light alloy wheels
If possible, clean wheels once a week.
Use Mercedes-Benz approved Wheel
Care, a soft bristle brush and a strong
spray of water for cleaning the light al-
loy wheels.Plastic and rubber parts
Use a gentle dishwashing detergent or
mild detergent for delicate fabrics as a
washing solution.
Wipe with a cloth moistened in a luke-
warm solution.
The surface may temporarily change
color. If this is the case, wait for it to
dry.
!Fold the windshield wiper arms back onto
the windshield before turning the SmartKey in
the starter switch or pressing the KEYLESS-GO*
start/stop button (vehicles with KEYLESS-GO*).
Hold on to the wiper when folding the wiper arm
back. If released, the force of the impact from
the tensioning spring could crack the windshield.
!To clean the window interior, do not use a
dry cloth, abrasives, solvents or cleaners con-
taining solvents. Do not touch the inside of the
front, rear or door windows with hard objects
such as an ice scraper or ring. Doing so may
damage the windows.
!Do not use a dry cloth, abrasives, solvents
or cleaners containing solvents. Do not touch
the protective layer with hard objects such as an
ice scraper or ring. Never apply strong force and
only use a soft, non-scratching cloth when clean-
ing the rear part of the tilt/sliding panel.
Otherwise you may scratch or damage the pro-
tective layer.
!Only use acid-free cleaning materials. Acid
may cause corrosion or damage the clear coat.
!The vehicle should not be parked for an
extended period of time immediately after it has
been cleaned, especially not after the wheel rims
have been cleaned with wheel rim cleaner.
Wheel rim cleaners can lead to increased
corrosion of the brake disks and brake pads.
Non-approved wheel cleaners may also damage
the wheel paint if the car is not driven after
cleaning. Therefore, the vehicle’s brake system should al-
ways be warmed-up before it is parked after
cleaning. To do so, please drive your vehicle for
several minutes to allow the brakes to dry. When
applying Mercedes-Benz approved Tire Care and
Mercedes-Benz approved Wheel Care products,
take care not to spray them on the brake disks.Warning!G
Do not use cleaners or cockpit care sprays
containing solvents to clean the cockpit or
the steering wheel. Cleaners containing sol-
vents will make the surface porous and vehi-
cle occupants could suffer serious injuries
Page 595 of 761

594 Operation
Vehicle care
Hard plastic trim items
Use Mercedes-Benz approved Interior
Care, a soft, lint-free cloth and apply
with light pressure.Steering wheel
Wipe with a damp cloth and dry thor-
oughly or clean with Mercedes-Benz
approved Leather Care.
Carpets
Use Mercedes-Benz approved Carpet
and Fabric Care for cleaning the car-
pets.Headliner and shelf below rear window
Use a soft bristle brush or a dry-sham-
poo cleaner in case of excessive dirt.
Seat belts
Only use clear, lukewarm water and
soap.
from plastic parts coming loose in the event
of air bag deployment.
!Do not use oil, wax or scouring agents on
these parts.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the surface.
Do not attempt to wipe the surface with a dry
cloth or sponge.
Otherwise you may scratch or damage the sur-
face.
!Never apply strong force and only use a soft,
non-scratching cloth when cleaning the surface.
Do not attempt to wipe the surface with a dry
cloth or sponge.
Otherwise you may scratch or damage the sur-
face.
!The webbing must not be treated with
chemical cleaning agents. Do not dry the web-
bing at temperatures above 176°F (80°C) or in
direct sunlight.
Warning!G
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Page 636 of 761
635 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Parking brake
See Oper. ManualThe red indicator lamp for the electronic
parking brake flashes and the yellow warn-
ing lamp for the electronic parking brake
lights up.
The electronic parking brake is malfunction-
ing.Switch ignition off and back on again, and en-
gage or release electronic parking brake
(
page 395).
or
Carefully drive off (page 395).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
or
Release electronic parking brake mechani-
cally (
page 673).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
(USA only)
(Canada only)
Page 637 of 761

636 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Parking brake
See Oper. ManualWhen you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes for
approx.10 seconds. Afterward, it goes out
or lights up continuously. The yellow warn-
ing lamp for the electronic parking brake
lights up.
The electronic parking brake is malfunction-
ing or overheated for example due to over-
or undervoltage.Carefully drive off (page 395).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
In the event of overvoltage or undervoltage:
Remove the cause of the overvoltage or und-
ervoltage, e.g. charge the battery or restart
the engine.
Switch ignition off and back on again, and en-
gage or release electronic parking brake
(
page 395).
If the electronic parking brake still cannot be re-
leased:
Release electronic parking brake mechani-
cally (
page 673).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
(Continued on next page)
(USA only)
(Canada only)
Page 638 of 761

637 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Parking brake
See Oper. ManualIf overheated:
Let vehicle cool down, and do not engage
electronic parking brake during this time.
or
Switch ignition off and back on again, and en-
gage or release electronic parking brake.
(USA only)
(Canada only)Parking brake
inoperativeWhen you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes and
goes out after approx. 10 seconds. The yel-
low warning lamp for the electronic parking
brake lights up.
The electronic parking brake is malfunction-
ing.Switch ignition off and back on again, and en-
gage electronic parking brake (
page 395).
If the electronic parking brake cannot be en-
gaged:
Shift the automatic transmission to P
(
page 399).
Protect vehicle from rolling away while
parked by using a chock from the vehicle tool
kit (
page 670).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 643 of 761
642 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
STOP,
car too lowYou have started driving although the vehi-
cle level was too low.
The vehicle will be raised. The Airmatic
warning lamp goes out after several sec-
onds.Stop your vehicle as soon as it is safe to do
so.
Engage the electronic parking brake
(
page 395).
Wait until the message disappears from the
multifunction display.
You may then drive off.
STOP,
car too lowThe Airmatic is malfunctioning.
The Airmatic warning lamp lights up contin-
uously.Stop and press the vehicle level control but-
ton to select a higher vehicle level
(
page 440).
Do not turn steering wheel too far to avoid
damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph (80 km/h).
Contact an authorized Mercedes-Benz
Center as soon as possible.
There is otherwise danger of an accident.
Page 654 of 761
653 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Third brake lampThe high mounted brake lamp is malfunc-
tioning. This message will only appear if a
critical number of light emitting diodes have
stopped working.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Corner. lamp,
LeftThe left-hand corner-illuminating lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 678).
Corner. lamp,
RightThe right-hand corner-illuminating lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 678).
Low beam,
LeftThe left low beam lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Low beam,
RightThe right low beam lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Active headlamps
inoperativeThe active headlamps are malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.