Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
XAt coolant temperatures below 248 ‡ (120 †), drive to the nearest qualified
specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain,
and stop-and-go traffic.
Driving systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle or a stationary obstacle in your line of travel at too high a speed.
XBe prepared to brake immediately.
XPay careful attention to the traffic situation. You may have to brake or take
evasive action.
For further information about the distance warning function of COLLISION PRE-
VENTION ASSIST PLUS, see (
Ypage 53).
Warning and indicator lamps in the instrument cluster197
On-board computer and displays
Z
XRemove dirt immediately, wherepossible,
while avoidin grubbing to ohard.
XSoak insec tremain swit hinsec tremove rand
rinse off th etreated areas afterwards .
XSoak bird droppings withwater and rinse off
th etreated areas afterwards .
XRemove coolant, brakefluid ,tree resin, oils ,
fuel sand greases by rubbing gentl ywit h a
cloth soaked in petroleum ether or lighte r
fluid .
XUse tar remove rto remove tar stains.
XUse silicon eremove rto remove wax.
If water no longer forms "beads "on th epain t
surface, use th epain tcar eproducts recommen -
ded and approve dby Mercedes-Benz. This is th e
cas eapproximately every three to fiv emonths,
depending on th eclimat econdition sand th e
car eproduc tused.
If dirt has penetrated th epain tsurfac eor if th e
pain thas become dull, th epain tcleane rrecom-
mended and approve dby Mercedes-Ben z
should be used.
Do no tuse these car eproducts in th esun or on
th ehoo dwhile th ehoo dis hot .
XUseasuitable touch-up stick ,e.g. MB Touch-
Up Stick ,to repair slight damag eto th epaint-
wor kquickly and provisionally.
Matte finish care
!Never polis hth evehicl eor th eligh talloy
wheels. Polishin gcauses th efinish to shine.
!The followin gmay caus eth epain tto
become shin yand thus reduce th ematte
effect:
Rstron grubbing of th epaintwork wit h
unsuitable materials
Rfrequen tuse of automatic car washe s
Rwashing thevehicl ein direct sunligh t
!Never use paintcleaner, buffing or polishin g
products ,or glos spreserver ,e.g. wax. These
products are only suitable for high-gloss sur -
faces. Their use on vehicles wit hmatte finish
leads to considerable surfac edamag e(shiny,
mottled areas).
Always hav epaintwork repairs carrie dout at a
qualified specialist workshop.
!Do no tuse wash program swit h a hot wax
treatmen tunder any circumstances. Observ
ethese note sif your vehicl ehas aclear
matte finish. This will help you to avoi ddamag e
to th epaintwork due to incorrec ttreatment.
These note salso apply to ligh talloy wheels wit h
a clear matte finish.
iThe vehicl eshould preferably be washe dby
han dusin g asoftsponge, car shampoo and
plenty of water.
iUse only insec tremove rand car shampoo
from th erange of recommended and
approve dMercedes-Benz car eproducts .
Cleaning the vehicle parts
Cleaning the wheels
GWARNIN G
The water je tfrom acircular je tnozzle (dir t
blasters )can caus einvisible exterio rdamag e
to th etires or chassi scomponents. Compo-
nent sdamaged in this way may fail unexpect-
edly. There is aris kof an accident.
Do no tuse powe rwashers wit hcircular je t
nozzles to clean th evehicle. Hav edamaged
tires or chassi scomponent sreplace dimme-
diately.
!Do no tuse acidic whee lcleaning products
to remove brak edust .This could damag e
whee lbolt sand brak ecomponents.
!Do no tpark th evehicl efor an extended
period straight after cleaning it ,particularly
after having cleane dth ewheels wit hwhee l
cleaner. Whee lcleaners could caus e
increased corrosio nof th ebrak edisc sand
brak epads/linings. Fo rthis reason ,you
should driv efor afew minute safter cleaning .
Braking heat sth ebrak edisc sand th ebrak e
pads/linings, thus dryin gthem. The vehicl e
can then be parked.
Cleaning the windows
GWARNIN G
You could become trapped by th ewindshield
wiper sif they start moving while cleaning th e
windshield or wiper blades. There is aris kof
injury.
236Care
Maintenance and care
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point in the engine com-
partment, consisting of a positive terminal and a ground point.
!Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a second battery using jumper cables.
Observe the following points:
RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using a second battery or a jump-starting device.
RYou may only jump-start the vehicle when the engine and exhaust system are cold.
ROnly jump-start from batteries with a 12 V voltage rating.
ROnly use jumper cables which have a sufficient cross-section and insulated terminal clamps.
RIf the battery is fully discharged, leave the battery that is being used to jump-start connected for
a few minutes before attempting to start. This charges the battery slightly.
RMake sure that the two vehicles do not touch.
Make sure that:
RThe jumper cables are not damaged.
RBare parts of the terminal clamp do not come into contact with other metal parts while the jumper
cables are connected to the battery.
RThe jumper cables cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan.
XSecure the vehicle by applying the electric parking brake.
XShift the transmission to position P.
XMake sure that the ignition is switched off. All indicator lamps in the instrument cluster must be
off. When using the SmartKey, turn the SmartKey to position 0in the ignition lock and remove it
(
Ypage 103).
XSwitch off all electrical consumers, e.g. rear window defroster, lighting, etc.
XOpen the hood.
Vehicles with carbon engine cover:
XTurn fasteners :one Õturn and remove.
XRemove cover.
All vehicles:
248Jump-starting
Breakdown assistance
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire width
in percent.
Tire pressure
This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when
the tires are cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and
Rif the vehicle has not been driven further than
1 mile (1.6 km)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the
bead to prevent the tire from coming loose fromthe wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 5 lbs (2.3 kg). These
optional extras, such as high-performance
brakes, level control, a roof rack or a high-per-
formance battery, are not included in the curb
weight and the weight of the accessories.
TIN (Tire Identification Number)
This is a unique identifier which can be used by
a tire manufacturer to identify tires, for example
for a product recall, and thus identify the pur-
chasers. The TIN is made up of the manufactur-
er's identity code, tire size, tire type code and
the manufacturing date.
Load bearing index
The load bearing index (also load index) is a code
that contains the maximum load bearing capa-
city of a tire.
Traction
Traction is the result of friction between the tires
and the road surface.
Treadwear indicators
Narrow bars (tread wear bars) that are distrib-
uted over the tire tread. If the tire tread is level
with the bars, the wear limit of áin (1.6 mm)
has been reached.
Occupant distribution
The distribution of occupants in a vehicle at their
designated seating positions.
Total load limit
Nominal load and luggage load plus 68 kg
(150 lbs) multiplied by the number of seats in
the vehicle.
Changing a wheel
Flat tire
The "Breakdown assistance" section
(Ypage 242) contains information and notes on
how to deal with a flat tire.
Rotating the wheels
GWARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tires have different dimensions. The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent.
Rotate front and rear wheels only if the wheels and tires are of the same dimensions.
!On vehicles equipped with a tire pressure
monitor, electronic components are located
in the wheel.
Tire-mounting tools should not be used near
the valve. This could damage the electronic
components.
272Changing a wheel
Wheels and tires