Contents
DOT, Tire Identification Number
(TIN) ............................................. 327
Maximum tire load ....................... 328
Maximum tire inflation pressure .. 329
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 329
Tire ply material ........................... 331
Tire and loading terminology ........ 332
Rotating tires ............................... 335
Winter driving .................................... 336
Winter tires .................................. 336
Block heater* (Canada only) ........ 337
Snow chains................................. 337
Maintenance ...................................... 339
Maintenance service indicator
message....................................... 339
Calling up the maintenance
service indicator........................... 340
Resetting the maintenance
service indicator........................... 341
Vehicle care ....................................... 342
Cleaning and care of vehicle ........ 342
Practical hints.................................. 351
What to do if … ................................... 352
Lamps in instrument cluster ......... 352
Lamp in center console................. 362
Vehicle status messages in the
multifunction display..................... 363
Where will I find ...? ............................ 398
First aid kit .................................... 398
TIREFIT* ........................................ 398
Spare wheel .................................. 398
Vehicle tool kit .............................. 399
Luggage box ................................. 401
Unlocking/locking in an emergency... 402
Unlocking the vehicle.................... 402
Locking the vehicle ....................... 403
Fuel filler flap emergency release . 404
Manually unlocking the gear
selector lever ................................ 404
Opening/closing in an emergency ..... 406
Power tilt/sliding sunroof ............. 406
Resetting activated head restraints .... 407
Replacing SmartKey batteries ............ 408
SmartKey ...................................... 408
SmartKey with KEYLESS-GO* ....... 409Replacing bulbs .................................. 411
Bulbs............................................. 411
Replacing bulbs for front lamps .... 414
Replacing bulbs for rear lamps ..... 416
Replacing wiper blades ...................... 417
Removing wiper blades ................. 417
Installing wiper blades .................. 418
Flat tire............................................... 419
Preparing the vehicle .................... 419
Sealing tires with TIREFIT ............. 419
Mounting the spare wheel ............ 423
MOExtended system* ................... 429
Battery ............................................... 431
Disconnecting the battery ............ 432
Removing the battery ................... 433
Charging and reinstalling the
battery .......................................... 433
Reconnecting the battery ............. 434
Jump starting...................................... 435
Towing the vehicle.............................. 437
Installing towing eye bolt .............. 439
Fuses.................................................. 441
Aids for replacing fuses ................ 441
Main fuse box in passenger
compartment ................................ 442
Fuse box in trunk .......................... 442
115 Controls in detail
Locking and unlocking
Closing the trunk from the outside
manually
1Handle
2Handles
Lower trunk lid by pulling firmly on
handle1 or handles2.
Close trunk with hands placed flat on
trunk lid.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk. Be espe-
cially careful when small children are
around.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*:
To prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.iIf the vehicle was previously centrally
locked, the trunk will lock automatical-
ly after closing it (
page 114).
To confirm locking, all turn signal lamps
flash three times.
250 Controls in detailLoadingUnloading and folding
Loosen both straps.
Disconnect hook1 from eye2.
Unload skis.
Close flap in trunk.
Fold and flatten ski sack lengthwise.
Place folded ski sack inside recess of
backrest.
Fasten hook and loop fastener
Close ski sack compartment cover.Removal of ski sack
For removal of the ski sack, we recom-
mend that you contact an authorized
Mercedes-Benz Center.
Cargo tie-down hooks
Four hooks are located in the trunk.
Carefully secure cargo by applying
even load on all hooks with rope of suf-
ficient strength to hold down the cargo.
Always follow loading instructions
(page 247).
Warning!
G
Never drive vehicle with trunk open while
the ski sack is removed. Deadly carbon
monoxide (CO) gases may enter vehicle
interior, resulting in unconsciousness and
death.iTo prevent unauthorized persons from
access to the trunk, always close the
cover.
280 OperationDriving instructionsPower assistance
Brakes
Warning!
G
The brake system requires electrical energy
for operation.
A malfunction in the vehicle’s power supply
or electrical system may impair brake
system operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 354) and
warning messages in the instrument cluster
(
page 363) come on while driving. To
brake, the driver must then apply signifi-
cantly greater brake pedal pressure and
depress the pedal much further to obtain
the expected braking effect. If necessary,
apply full pressure to the brake pedal.
Brakes may only be applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment. A tow
bar must be used if circumstances do not
permit the use of the recommended towing
methods and the vehicle requires towing
with all four wheels on the ground. Towing
the vehicle with all four wheels on the
ground is only permissible for distances up
to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, refer to “Towing the vehicle”
(page 437). For more information, see
“Electro-hydraulic brake system”
(page 89).
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.
Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
314 OperationTires and wheels
Install the valve cap.
Repeat this procedure for each tire.Run Flat Indicator*
While the vehicle is being driven, the Run
Flat Indicator* monitors the set tire infla-
tion pressures by evaluating each wheel’s
rotational speed. This allows the system to
detect a significant loss of pressure in a
tire. If a wheel’s rotational speed changes
due to falling tire inflation pressure, you
will see a corresponding warning message
in the multifunction display.
The Run Flat Indicator* may function in a
restricted manner or with a delay if:
snow chains are mounted to the
vehicle
winter road conditions prevail in pres-
ence of ice and snow
you are driving on a loose surface (e.g.
sand or gravel)
you are driving in a very sporty manner
(involving rapid acceleration or high
speeds in curves)
iIf you have overfilled the tire, release
tire inflation pressure by pushing the
metal stem of the valve with e.g. a tip of
a pen. Then recheck the tire inflation
pressure with the tire gauge.
Warning!
G
When the multifunction display shows the
message
Tire pressure Check tires
,
one or more of your tires is significantly un-
der-inflated. You should stop and check
your tires as soon as possible, and inflate
them to the proper tire inflation pressure as
indicated on the vehicle’s tire information
placard. Driving on a significantly under-in-
flated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability. Each tire, including the
spare, should be checked monthly when
cold and set to the recommended tire infla-
tion pressure as specified in the vehicle
placard and owner’s manual.
315 Operation
Tires and wheels
Reactivating the Run Flat Indicator*
The tire inflation pressure monitor must be
reactivated in the following situations:
If you have changed the tire inflation
pressure
If you have replaced the wheels or tires
If you have installed new wheels or
tires
Using the tire placard on the driver’s
door B-pillar or, if available, the inside
of the fuel filler flap, make sure the tire
inflation pressure of all four tires is cor-
rect.
iThe recommended tire inflation pres-
sures for your vehicle can be found on
the tire placard located on the driver’s
door B-pillar (
page 305). The tire
inflation pressures are not listed in the
owner’s manual.
Warning!
G
The Run Flat Indicator* does not provide a
warning for wrongly selected tire inflation
pressures. Always adjust tire inflation pres-
sure according to the placard on the driver’s
door B-pillar or fuel filler flap.
The Run Flat Indicator* does not replace
regular checks of the tire inflation pressures
since a gradual pressure loss in all four tires
cannot be detected by the Run Flat
Indicator*.
The Run Flat Indicator* is not able to issue a
warning due to a sudden dramatic loss of
tire inflation pressure (e.g. tire blowout
caused by a foreign object). In this case
bring the vehicle to a halt by carefully apply-
ing the brakes and avoiding abrupt steering
maneuvers.
Warning!
G
The Run Flat Indicator* can only warn you in
a reliable manner if you have set the correct
tire inflation pressures for each tire.
If an incorrect tire inflation pressure was
set, the system will monitor the pressure ac-
cording to the incorrect value.
316 OperationTires and wheels
Switch on the ignition (
page 36).
Make sure the standard display menu
appears in the multifunction display
(
page 153).
Press buttonk orj repeatedly
until the following message appears in
the multifunction display:
Press buttonæ.
The following message will appear in
the multifunction display:Tire pressure OK now?
If you wish to confirm activation:
Press buttonæ.
The following message will appear in
the multifunction display:Run Flat Indicator
reactivated
After a certain “learning phase”, the Run
Flat Indicator* checks the set pressure val-
ues for all four tires.
If you wish to cancel activation:
Press buttonç.
or
Wait until the messageTire pressure OK now?disappears.Checking tire pressure electronically
with the Advanced Tire Pressure Moni-
toring System* (Advanced TPMS*),
(Canada only)
iThe Advanced T
ire P
ressure M
onitoring
S
ystem* (Advanced TPMS) is equipped
with a combination low tire pres-
sure/TPMS malfunction telltale in the
instrument cluster (
page 25).
Depending on how the telltale illumi-
nates, it indicates a low tire pressure
condition or a malfunction in the TPMS
system itself:
If the telltale illuminates continu-
ously, one or more of your tires is
significantly under-inflated. There is
no malfunction in the TPMS.
If the telltale flashes for 60 seconds
and then stays illuminated, the
TPMS system itself is not operating
properly.
321 Operation
Tires and wheels
Potential problems associated with
underinflated and overinflated tires
Underinflated tires
Underinflated tires can:
cause excessive and uneven tire wear
adversely affect fuel economy
lead to tire failure from being
overheated
adversely affect handling
characteristicsOverinflated tires
Overinflated tires can:
adversely affect handling
characteristics
cause uneven tire wear
be more prone to damage from road
hazards
adversely affect ride comfort
increase stopping distance
MOExtended system*
The MOExtended system allows you to
continue driving your vehicle even if there
is a total loss of pressure in one or more
tires.
You may only use the MOExtended system
in conjunction with the Run Flat Indicator*
or the Advanced TPMS* (Canada only)
(page 314).
For information on driving in case of pres-
sure loss in one or more tires (emergency
mode), see the “Practical hints” section
(page 429).
Warning!
G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly,
adversely affect handling and fuel economy,
and are more likely to fail from being
overheated.
Warning!
G
Follow recommended tire inflation
pressures.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride
comfort, wear unevenly, increase stopping
distance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.