432 Practical hints
Replacing bulbs
Reinsert bulb holder4 with the bulb in
the lamp and turn clockwise.
Align housing cover2 and turn it
clockwise.
Front turn signal lamp bulb
Turn bulb socket1 counterclockwise
and remove it.
Press gently onto the bulb and turn
counterclockwise out of bulb
socket1.
Press the new bulb gently into bulb
socket1 and turn clockwise until it
engages.
Place bulb socket1 back into the
lamp and turn it clockwise.
Parking and standing lamp bulb
Turn housing cover2 counterclock-
wise and remove it.
Pull out bulb socket5 with the bulb.
Pull the bulb out of the bulb socket5.
Press the new bulb into bulb socket5.
Press bulb socket5 back into the
lamp.
Align housing cover2 and turn it
clockwise.
Additional turn signal lamps
The additional turn signal lamps in the ex-
terior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to func-
tion, the entire turn signal unit must be re-
placed. Have the additional turn signal unit
replaced by an authorized Mercedes-Benz
Center.
Front side marker lamp
Since replacing the side marker lamp bulbs
is a technically highly demanding process,
we recommend you have the side marker
lamp bulbs replaced by an authorized
Mercedes-Benz Center.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 126).
Tail lamp unit
Open trunk lid.
Swing the trim panel covering the cor-
responding rear lights to the side.
1Connector
2Tab
Disconnect electrical connector1.
433 Practical hints
Replacing bulbs
Pull tab2 in the direction of the
arrow.
Remove the bulb carrier.
1Brake lamp
2Backup lamp
3Rear fog lamp (driver’s side)/tail lamp
4Tail lamp, parking and standing lamp,
side marker lamp
5Turn signal lamp
Press gently onto the respective bulb
and turn counterclockwise out of its
bulb socket.
Press the new bulb gently into its bulb
socket and turn clockwise until it
engages.
Reinstall the bulb carrier.
Let tab2 (
page 432) engage.
Connect the electrical connector1
(
page 432) until it engage.
Reinstall trim panel.License plate lamp
1Screws
2License plate lamp
Loosen both screws1.
Remove the license plate lamp2.
Replace the tubular lamp.
Reinstall the license plate lamp2.
Retighten the screws1.
437 Practical hints
Flat tire
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Take TIREFIT, the sticker, and the
electric air pump out of the trunk
(
page 404).
Attach the sticker (supplied with the
TIREFIT kit) where it will be easily seen
by the driver on the instrument cluster.1TIREFIT container
2Flap
3Notch
4Electrical plug
5Air hose
6Flange
Open flap2 on the electric air pump.
Pull electrical plug4 and air hose5
out of the pump housing.
Warning!G
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage caused by driving with extremely
low tire inflation pressure, or on a flat tire, or
a damaged wheel.
Do not drive the vehicle under such circum-
stances.
Contact your nearest Mercedes-Benz
Center for assistance or call Roadside
Assistance.
Warning!G
Take care not to allow the contents of
TIREFIT to come in contact with hair, eyes or
clothing. TIREFIT is harmful if inhaled,
swallowed or absorbed through the skin -
causes skin, eye and respiratory irritation.
Any contact with eyes or skin should be
flushed immediately with plenty of water.
If clothing comes in contact with TIREFIT,
change clothing as soon as possible.
In case of allergic reaction or rash, consult a
physician immediately.
Warning!G
Keep TIREFIT out of reach of children.
If swallowed, rinse mouth immediately with
plenty of water and drink plenty of water.
Do not induce vomiting!
Consult a physician immediately.
Keep away from open flame or heat source.
iIf sealant has leaked out, let it dry. You can
then peel it off.
441 Practical hints
Flat tire
Mounting the Minispare wheel Preparing the vehicle
Prepare the vehicle as described on
(
page 436).
Take the wheel wrench, alignment bolt,
collapsible wheel chock, and the jack
out of the trunk (
page 407).
Take the Minispare wheel and wheel
bolts out of the trunk (
page 407).Lifting the vehicle
Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
or other sizeable objects.
One wheel chock is included with the
vehicle tool kit (
page 404).
When changing wheel on a level surface:
Place the wheel chock in front of and
another sizeable object behind the
wheel that is diagonally opposite to the
wheel being changed.
Always try lifting the vehicle using the jack
on a level surface. However, should cir-
cumstances require you to do so on a hill,
place the wheel chock and the other size-
able object as follows:
Place the wheel chock and another
sizeable object on the downhill side
blocking both wheels of the axle not
being worked on.
Warning!G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one Minispare wheel mounted.
Do not switch off the ESP
® when a Minis-
pare wheel is mounted.
442 Practical hints
Flat tire
1Wheel wrench
On wheel to be changed, loosen but do
not yet remove the wheel bolts (ap-
proximately one full turn with
wrench1).
The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.2Jack
3Take-up bracket
Place jack 2 on firm ground.
Position jack2 under take-up
bracket3 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.
Warning!G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use,
especially on hills. Always try to use the jack
on a level surface. Make sure the jack arm is
fully seated in the jack take-up bracket.
Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.
446 Practical hints
Flat tire
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*.
!The maximum distance in emergency mode
depends on the vehicle’s load. It is 30 miles
(50 km) if the vehicle is partially loaded and
18 miles (30 km) if the vehicle is fully loaded.
The point at which the maximum driving distance
begins in emergency mode is when the warning
message appears in the multifunction display
indicating that there is a loss of tire inflation
pressure.
Do not exceed the maximum speed of 50 mph
(80 km/h).
Warning!G
In emergency mode, your vehicle’s driving
characteristics are diminished in such situa-
tions as:
driving around curves
while braking
while accelerating rapidly
Therefore, your driving style must be adapt-
ed accordingly. Avoid abrupt steering and
driving maneuvers, as well as driving over
obstacles (road curbs, potholes, or off-road
areas). This is especially important if the ve-
hicle is heavily loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can
be significantly shorter or, if the vehicle is
driven cautiously, somewhat longer.
Do not continue driving in emergency mode
if
you notice knocking sounds
the vehicle starts to shake
smoke develops and you smell rubber
ESP® is intervening continuously
you notice tears on the tire sidewalls
After driving in emergency mode, you must
have the rims inspected by an authorized
Mercedes-Benz Center to check if they are
suitable for further use. The failed tire must
be replaced in any case.
iWhen replacing individual or all tires on the
vehicle, make sure only matching tires marked
with “MOExtended” are mounted in the size
specified for your vehicle (
page 466).
452 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the vehi-
cle be transported with all wheels off the
ground using flatbed or appropriate wheel
lift/dolly equipment.
When circumstances do not permit the
recommended towing methods, the vehi-
cle may be towed with all wheels on the
ground or front wheels raised only so far as
necessary to have the vehicle moved to a
safe location where the recommended
towing methods can be employed.
!Do not tow-start the vehicle.
!Use flatbed or wheel lift/dolly equipment
with SmartKey in starter switch turned to
position0.
Do not tow with sling-type equipment. Towing
with sling-type equipment over bumpy roads will
damage radiator and supports.
To prevent damage during transport, do not tie
down vehicle by its chassis or suspension parts.
Switch off the automatic central locking
(
page 164).
!If the vehicle is towed with the front axle
raised, the gear selector lever must be in posi-
tion N and the engine must be shut off
(SmartKey in starter switch position0 or1). Oth-
erwise, the ESP
® will immediately be engaged
and will apply the rear wheel brakes.
When towing the vehicle with all wheels on the
ground, the gear selector lever must be in
positionN and the SmartKey must be in starter
switch position2.
When towing the vehicle with all wheels on the
ground or the front axle raised, the vehicle may
be towed only for distances up to 30 miles
(50 km) and at a speed not to exceed 30 mph
(50 km/h).
Warning!G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:
the engine will not run
there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the SmartKey
is in starter switch position2.
If the SmartKey is left in starter switch
position 0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock,
remove SmartKey from starter switch and
reinsert.
465 Technical data
Engine
Engine
ModelCLK 350 (209.456)1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
CLK 550 (209.472)1CLK 63 AMG (209.477)1
Engine272273156
Mode of operation4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection
No. of cylinders688
Bore3.66 in (92.90 mm)3.85 in (98.00 mm)4.02 in (102.20 mm)
Stroke3.39 in (86.00 mm)3.56 in (90.50 mm)3.72 in (94.60 mm)
Total piston displacement213.5 cu in (3 498 cm3)333.25 cu in (5 461 cm3)378.8 cu in (6 208 cm3)
Compression ratio10.5:110.5:111.3:1
Output acc. to SAE J 1349268 hp / 6 000 rpm2
(200 kW / 6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
382 hp / 6 000 rpm2
(285 kW / 6 000 rpm)
475 hp / 6 800 rpm2
(354 kW / 6 800 rpm)
Maximum torque acc. to SAE J
1349258 lb-ft/ 2 400 - 5 000 rpm
(350 Nm / 2 400 - 5 000 rpm)391 lb-ft / 2 800 - 4 800 rpm
(530 Nm /2 800 - 4 800 rpm)465 lb-ft / 5 000 rpm
(630 Nm / 5 000 rpm)
Maximum engine speed6300 rpm6500 rpm7200 rpm
Firing order1-4-3-6-2-51-5-4-2-6-3-7-81-5-4-2-6-3-7-8
Poly-V-belt2404 mm2380 mm2369 mm