340 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 and gear selector lever
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.Upholstery
Using aftermarket seat covers or wearing
clothing that have the tendency to give off
coloring (e.g. when wet, etc.) may cause
the upholstery to become permanently dis-
colored. By lining the seats with a proper
intermediate cover, contact-discoloration
will be prevented.
!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 seat belts must not be treated with
chemical cleaning agents. Do not dry the seat
belts 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.
Warning!G
Only use seat or head restraint covers which
have been tested and approved by
Mercedes-Benz for your vehicle model.
Using other seat or head restraint covers
may interfere with or prevent the activation
of the active head restraints. Contact an
authorized Mercedes-Benz Center for
availability.
357 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
75
The indicator lamp does not illuminate
and/or does not remain illuminated
with the weight of a typical
12-month-old child in a standard child
restraint or less on the front passenger
seat.
The system is malfunctioning.Make sure that there is nothing between seat cush-
ion and child seat and check installation of the child
seat.
Make sure that no objects applying supplemental
weight onto the seat are present.
Make sure that no objects which apply forces to the
seat are present (e.g. objects such as books, brief-
cases etc. lodged behind or around the seat, head
restraints pushing against roof etc.). The system
may recognize such forces as supplemental weight.
If the light remains out, have the system checked as
soon as possible by an authorized Mercedes-Benz
Center. Do not transport a child on the front passen-
ger seat until the system has been repaired.
Read and observe messages in the multifunction
display and follow corrective steps (
page 358).
Warning!G
If the 75 indicator lamp does
not illuminate or remains out with the
weight of a typical 12-month-old child
in a standard child restraint or less on the
front passenger seat, do not transport a
child on the front passenger seat until the
system has been repaired.
406 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement
Use only 12 volt bulbs of the same type
and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not light
up, contact an authorized
Mercedes-Benz Center.
LampType
7High mounted brake
lampLED
8 Brake, tail, parking,
standing, backup lamps
and turn signal lamps.
Rear fog lampHiP
LED*
9License plate lampsC5W
Warning!G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
415 Practical hints
Flat tire
Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.Removing the wheel
1Alignment bolt
Unscrew the upper-most wheel bolt
and remove.
Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.
Remove the remaining bolts.
Remove the wheel.Mounting the spare wheel
Clean contact surfaces of wheel and
wheel hub.
Guide the spare wheel onto the align-
ment bolt and push it on.
Insert wheel bolts and tighten them
slightly.
Warning!G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.
Never start the engine when the vehicle
is raised.
Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolt and wheel hub
threads.
Warning!G
Vehicles with collapsible tire:
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 416) before lowering the
vehicle.
!To avoid paint damage, place wheel flat
against hub and hold it there while installing first
wheel bolt.
416 Practical hints
Flat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Vehicles with Minispare wheel:
Continue the procedure by following
the instructions under “Lowering the
vehicle” (
page 418).
Vehicles with collapsible tire:
Continue the procedure by following
the instructions under “Inflating the
collapsible tire” and then “Lowering the
vehicle” (
page 418).Inflating the collapsible tire
Take the electric air pump out of the
trunk (
page 393).
Warning!G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident. Be
sure to use the correct wheel bolts.
Warning!G
Only use genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.
!Do not lower the vehicle before inflating the
collapsible tire. Otherwise the rim may be dam-
aged.
Warning!G
Observe instructions on air pump label.
451 Technical data
Fuels, coolants, lubricants etc.
Premium unleaded gasolineFuel requirements
Only use premium unleaded fuel:
The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research Octane Number
(RON) and the Motor Octane Number
(MON): (RON+MON)/2. This is also
known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not
exceed 10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious per-
sonal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors can damage your
health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded gasoline is not avail-
able and low octane fuel is used, follow these
precautions:
Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as pos-
sible.
Avoid full throttle driving and abrupt acceler-
ation.
Do not exceed an engine speed of 3000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.
Do not exceed 2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.
460 Index
Coolant
Checking level 290
Messages in display 375–377
Temperature 282
Temperature indicator 137
Warning lamp 350
Corner-illuminating front fog lamps* 130
Cruise control 213
Canceling 215
Driving downhill 214
Driving uphill 214
Fine adjustment 216
Lever 222
Saving current speed 214
Setting speed 214
Cruise control lever 213, 222
Cup holders 246
Curb weight 324
D
Date display, setting 158, 159
Daytime running lamp mode 128
Setting 159
Deceleration
With Distronic* 221
Deep water see Standing water
Defogging windshield 197Defrosting
Front 197
Rear window 186
Delayed shut-off
Exterior lamps 161
Interior lighting 162
Department of Transportation see DOT
Dialing
A number (telephone) 167
Difficulties
While driving 58
With starting 52
Digital clock see Clock
Digital speedometer 145
Dimensions, vehicle 447
Direction of rotation (tires) 295Displays
Digital speedometer 145
Distronic* 219
Maintenance service indicator
message 330
Messages in display 358
Multifunction display 139
Outside temperature 139, 156
Selecting 156
Symbol messages 372
Text messages 360
Vehicle status message memory 151
Vehicle system settings, Control
system 152
Distance
Decreasing in Distronic* 226
Increasing in Distronic* 226
Warning function 226
Distance to empty (range) 166
Trip computer 164
464 Index
Head restraints 118
Active head restraints 81
Comfort head restraint*,
Adjusting 44
Folding back 119
Front seat, Adjusting 43
Front seat, Removing
Rear seat, Removing and
installing 118
Headlamp cleaning system* 183
Headlamp shut off delay see Delayed
shut-off, Exterior lamps 161
Headlamps
Automatic headlamp mode 127
Bi-Xenon headlamps, Active 126
Cleaning lenses 337
Cleaning system* 183
Halogen 405
High beam 55
High beam flasher 55
High beam see High beam headlamps
Low beam 55
Manual headlamp mode 127
Replacing bulbs 404
Switch 55Headliner and shelf below rear window,
cleaning 340
Heated seats* 121
Heated steering wheel (Canada
only) 251
Height adjustment
Head restraints 43
Seats 42
Steering wheel 44
Vehicle level control 231
High beam flasher 55, 130
High beam headlamps
Replacing bulbs 408
Switching on 55, 130
High mounted brake lamp 406
High-performance brake system
(CLS 63 AMG only) 274
Hood 286
Message in display 372
Horn 25
HVAC see Climate control system
Hydroplaning 276
I
Identification labels 434
Identification Number, Vehicle (VIN) 435
Ignition 38, 40Immobilizer 97
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems see Chil-
dren in the vehicle
Inflation pressure see
Tires, Inflation pressure 301
Information button (Tele Aid) 260
Inside door handle 108
Installing
Wiper blades 411
Instrument cluster 26, 136
Coolant temperature indicator 137
Illumination brightness 136
Lamps 344
Messages in the multifunction
display 358
Multifunction display 139
Outside temperature indicator 138
Instrument lighting see Instrument cluster,
Illumination brightness 136
Instrument panel see Instrument
cluster 136
Instruments and controls see
Cockpit 136