containers. Always keep service products outof the reach of children.
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
Coolant contains glycol and is therefore poison-
ous. Also observe the safety notes under "Ser-
vice products and capacities" (
Ypage 306).
GWARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
Only check the coolant level and/or fill the cool-
ant if the vehicle is on a level surface and the
engine has cooled down. The coolant tempera-
ture must be below 122 ‡ (50 †).
!Check the engine cooling and heating sys-
tem regularly for leaks.
If a large quantity of coolant is lost, have the
cause traced and rectified at a qualified spe-
cialist workshop.
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Take care not to spill any coolant on painted
surfaces. You could otherwise damage the
paintwork.
Example: cap and coolant expansion tankChecking the coolant level
XStop your vehicle as far away from traffic as
possible on level ground.
XSwitch off the engine.
XSecure the vehicle to prevent it from rolling
away.
XOpen the hood (Ypage 253).
XAllow the engine to cool down.
XUnscrew cap :slowly about half a turn coun-
ter-clockwise and allow excess pressure to
escape.
XTurn cap :further and remove it from cool-
ant expansion tank ;.
XCheck the coolant level.
If the coolant is up to marker bar =in the
filler neck when cold, there is a sufficient
amount of coolant in coolant expansion
tank ;.
If the coolant is approximately 0.59 in
(1.5 cm) above marker bar =in the filler neck
when warm, there is a sufficient amount of
coolant in coolant expansion tank ;.
256Engine compartment
Maintenance and care
Have the vehicle transported on a transporter or
trailer if it has transmission damage.
The automatic transmission must be in position
iwhen the vehicle is being towed away. If the
automatic transmission cannot be shifted to
position i, have the vehicle transported on a
transporter or trailer.
The battery must be connected and charged.
Otherwise, you:
Rcannot turn the key to position 2in the igni-
tion lock.
Rcannot shift the transmission to position i.
Before the vehicle is towed, switch off the auto-
matic locking feature (
Ypage 74). You could
otherwise lock yourself out of the vehicle when
pushing or towing away the vehicle.
Installing/removing the towing eye
The fixture for the front towing eye is located in the
bumper.
The rear towing eye is located under the bumper.
If you tow or tow-start a vehicle, attach the tow-
ing device to rear towing eye ;.
If your vehicle is equipped with a trailer tow
hitch, attach the towing device to the trailer tow
hitch (
Ypage 165). Installing the front towing eye
XTake the towing eye and screwdriver from the
vehicle tool kit (Ypage 272).
XPress the arrow on the cover
:and remove
cover :from the opening.
You will see the fixture for the towing eye.
XScrew in the towing eye clockwise to the stop.
XInsert the screwdriver into the towing eye and
tighten the towing eye.
XStow the screwdriver in the vehicle tool kit
(Ypage 272).
Removing the front towing eye
XRemove the screwdriver from the vehicle tool
kit (Ypage 272).
XInsert the screwdriver into the towing eye and
turn the screwdriver counter-clockwise.
XUnscrew the towing eye.
XInsert cover :with the lug at the top and
press it in at the bottom until it engages.
XStow the towing eye and the screwdriver with
the vehicle tool kit (Ypage 272).
Towing with the rear axle raised
!
Vehicles with automatic transmission must
not be towed with the rear axle raised. The
vehicle/trailer combination may otherwise
swerve or even roll over.
!The ignition must be switched off if the vehi-
cle is being towed with the front or rear axle
raised. Otherwise, ESP
®may intervene and
damage the brake system.
XSwitch on the hazard warning lamps
(Ypage 98).
XTurn the front wheels to the straight-ahead
position.
XRelease the parking brake.
XIf necessary, turn the key to position 0in the
ignition lock and remove it.
XTake the key with you when leaving the vehi-
cle.
XDo not exceed the towing speed of 30 mph
(50 km/h).
Please observe the important safety instruc-
tions when towing your vehicle with the rear axle
raised (
Ypage 276).
Tow-starting and towing away277
Breakdown assistance
Z
For further information on displaying the current
tire pressures, refer to "Checking the tire pres-
sure electronically" (
Ypage 288).
Important safety notes
GWARNING
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the pressure rec-
ommended by the vehicle manufacturer on
the Tire and Loading Information placard on
the driver's door B-pillar or the tire pressure
label on the inside of the fuel filler flap. If your
vehicle has tires of a different size than the
size indicated on the Tire and Loading Infor-
mation placard or the tire pressure label, you
should determine the proper tire pressure for
those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires
are significantly underinflated. Accordingly,
when the low tire pressure telltale illuminates,
you should stop and check your tires as soon
as possible, and inflate them to the proper
pressure. Driving on a significantly underin-
flated tire causes the tire to overheat and can lead to tire failure. Underinflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stop-
ping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driv-
er's responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
USA only:
Your vehicle has al so b
een equipped with a
TPMS malfunction indicator to indicate if the
system is not operating properly. The TPMS
malfunction indicator is combined with the
low tire pressure telltale. When the system
detects a malfunction, the warning lamp will
flash for approximately a minute and then
remain continuously illuminated. This
sequence will be repeated every time the vehi-
cle is started as long as the malfunction
exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunc-
tions may occur for a variety of reasons,
including the mounting of incompatible
replacement or alternate tires or wheels on
the vehicle that prevent the TPMS from func-
tioning properly. Always check the TPMS mal-
function telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels
allow the TPMS to continue to function prop-
erly.
It is the driver's responsibility to set the tire
pressure to the recommended cold tire pressure
suitable for the operating conditions
(
Ypage 282).
Note that the correct tire pressure for the cur-
rent operating conditions must first be pro-
gramed into the tire pressure monitor. If a sub-
stantial pressure loss occurs, the warning
threshold for the warning message is aligned to
the taught-in reference values. Restart the tire
pressure monitor after adjusting the cold tire
pressure (
Ypage 289). The current pressures
are saved as new reference values. This will
ensure that a warning message will only appear
if the tire pressure drops significantly.
The tire pressure monitor does not warn you if a
tire pressure is incorrect. Observe the notes on
the recommend
ed tire pressure (Ypage 282).
The tire pressure monitor is not able to warn you
of a sudden loss of pressure, e.g. following pen- etration by a foreign object. In this event, brake
the vehicle until it comes to a standstill. Avoid
sudden steering movements.
The tire pressure monitor has a yellow h
warning lamp in the instrument cluster for indi-
cating pressure loss/malfunctions (USA) or
pressure loss (Canada). Depending on how the
warning lamp flashes or lights up, an underin-
flated tire or a malfunction in the tire pressure
monitor is displayed:
Rif the h warning lamp is lit continuously,
the tire pressure on one or more tires is sig-
Tire pressure287
Wheels and tires
Z
rectly, it could tip over while the vehicle is
raised.
RThe vehicle's jack is intended only to raise the
vehicle for a short time when changing a
wheel. It is not suited for performing mainte-
nance work under the vehicle.
RAvoid changing the wheel on uphill and down-
hill slopes.
RBefore raising the vehicle, secure it from roll-
ing away by applying the parking brake and
inserting wheel chocks. Never disengage the
parking brake while the vehicle is raised.
RThe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
RMake sure that the distance between the
underside of the tires and the ground does not
exceed 1.2 in(3 cm).
RNever place your hands or feet under the
raised vehicle.
RNever lie under the raised vehicle.
RNever start the engine when the vehicle is
raised.
RNever open or close a door or the tailgate/
door when the vehicle is raised.
RMake sure that no persons are present in the
vehicle when the vehicle is raised.
Jacking points :(rubber stoppers) are located
just behind the front wheel arches and just in
front of the rear wheel arches.
XPlace jack ;beneath corresponding jacking
points :.
XTurn handwheel =until jack plate ;sits
securely on jacking point :.
XMake sure the base of jack ;is positioned
vertically beneath jacking point :.
XAssemble adapter?and ratchet Afrom the
vehicle tool kit.
XPlace adapter ?and ratchet Aon the hex-
agon nut of jack ;so that the lettering AB/
DOWN is visible.
XTurn ratchet Ain the AUF/UP direction until
the tire is a maximum of 3 cm off the ground.
When doing so, jack ;may move to one of
the side support surfaces.
Removing a wheel
!Do not place wheel bolts in sand or on a dirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
XUnscrew the wheel bolts.
XRemove the wheel.
Mounting a new wheel
GWARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of
damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always observe the instructions and safety
notes on "Changing a wheel" (
Ypage 298).
300Changing wheels
Wheels and tires