2008 MERCEDES-BENZ CLK550 ECU

418 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
MSkibag
OpenThis message will appear when the soft
top is operated with the ski bag roller
blind in its upward position.Pull the ski bag roller blind downward
and secure it (
page 280).
L Tele Aid
InoperativeOne or more main functions of the Tele
Aid system are malfunctioning.Have the Tele Aid system checked at
an authorized Mercedes-Benz Center.
tFunction
UnavailableThis display appears if button t or
s on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.

421 Practical hints
Where will I find...?
Where will I find...?
First aid kit
The first aid kit is located in the trunk on
the left side (CLK coupe) or on the right
side (CLK cabriolet), secured by a hook
and loop fastener.
Example CLK coupe
Loosen hook and loop fastener.
Remove first aid kit.Storage compartment underneath the
trunk floor
The TIREFIT kit (CLK 63 AMG only) or the
vehicle tool and the Minispare wheel are
located under the trunk floor.
1Handle
2Push handle
Raising: Pu s h i n h a n d l e1 in direction
of arrow2. The other side of
handle1 lifts up.
Take handle1 and lift up the trunk
floor cover.1Handle
3Upper trunk lip
Engage handle1 on upper trunk
lip3.
You can now access the TIREFIT kit
(CLK 63 AMG only) or the vehicle tool kit
and Minispare wheel.
Lowering: To disengage handle1 lift
up the trunk floor.
Disengage handle1 from upper trunk
lip3 and lower the trunk floor cover.
iCheck expiration dates and contents for
completeness at least once a year and replace
missing/expired items.
!To prevent damage, always disengage
handle1 from upper trunk lip3 and lower
trunk floor cover before closing the trunk.

423 Practical hints
Where will I find...?
Example CLK coupe
3Arrow
4Minispare wheel
5Vehicle tool kit storage well casing
6Vehicle tool kit
Remove vehicle tool kit6.Storing the vehicle tool kit
Place vehicle tool kit6 in vehicle tool
kit storage well casing5.
Place storage well casing2 over the
vehicle tool kit storage well casing5
and turn retaining screw1 clockwise
as far it will go to secure the Minispare
wheel.
Disengage the handle in upper edge of
trunk and lower trunk floor cover
(
page 421).Vehicle jack
iArrow3 on vehicle tool kit storage well
casing5 must point in the direction of travel.
Otherwise you cannot place the storage well
casing2 on top and secure the Minispare
wheel with retaining screw1.
!To prevent damage, always disengage trunk
floor handle from upper edge of trunk and lower
trunk floor before closing the trunk.
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 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.

424 Practical hints
Where will I find...?
The vehicle jack is located in the storage
compartment underneath the trunk floor.
Storage position
Remove vehicle jack from its
compartment.
Turn crank handle in direction of arrow
as far as it will go.
Operational position
Turn crank handle clockwise.
Before storing the vehicle jack in its
compartment:

It should be fully collapsed.

The handle must be folded in (storage
position).Setting up the collapsible wheel chock
The collapsible wheel chock serves to
additionally secure the vehicle, e.g. while
changing the wheel.
1Tilt the plate upward
2Fold the lower plate outward
3Insert the plate

425 Practical hints
Where will I find...?
Tilt both plates upward1.
Fold the lower plate outward2.
Guide the tabs of the lower plate all the
way into the openings of the base
plate3.
For information on where to place wheel
chocks when changing a wheel, see “Lift-
ing the vehicle” (
page 459).
Minispare wheel
The Minispare wheel is located in the
storage compartment underneath the
trunk floor.
Removing the Minispare wheel
Lift up trunk floor cover and engage
trunk floor handle in upper edge of
trunk.
Loosen the retaining screw in the mid-
dle of storage well casing by turning it
counterclockwise (
page 422).
Remove the storage well casing
(
page 422).
Example CLK coupe
1Vehicle tool kit
Wheel wrench
Jack
2Arrow
3Minispare wheel, Wheel bolts for
Minispare wheel
4Vehicle tool kit storage well casing
Remove vehicle tool kit storage well
casing4.
Remove Minispare wheel3.Storing the Minispare wheel
Place Minispare wheel3 in wheel
well.
Place vehicle tool kit storage well
casing4 over the Minispare wheel.
Make sure arrow2 on vehicle tool kit
storage well casing4 points in the
direction of travel.
Place storage well casing (page 422)
over vehicle tool kit storage well
casing4 and turn the retaining screw
(
page 422) clockwise as far it will go
to secure the Minispare wheel.
Disengage trunk floor handle in upper
edge of trunk and lower trunk floor cov-
er.
iArrow2 on vehicle tool kit storage well
casing4 must point in the direction of travel.
Otherwise you cannot place the storage well cas-
ing (
page 422) on top and secure the Minis-
pare wheel with the retaining screw
(
page 422).


435 Practical hints
Opening/closing in an emergency (Cabriolet)
Pull strap between soft top storage
compartment hinge and soft top com-
partment.
Secure second strap to second hinge in
the same manner.
Place both straps on soft top compart-
ment cover.
Take hex wrench out of trunk.
Close trunk lid.
You will only have access to the trunk
again when the emergency operation
has been completed.
!Do not pull the straps when the trunk is
open.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*: To prevent a possi-
ble inadvertent lockout, the trunk lid will open
automatically if a SmartKey with KEYLESS-GO*
is recognized in the area of the rear shelf or in-
side the trunk.
!The trunk lid must remain closed during the
next steps in the procedure. Otherwise the trunk
lid and the soft top compartment cover may
come into contact with one another and be dam-
aged.
Warning!G
At this point, the remaining procedure
needs to be done by two people. Otherwise
you could be injured.


464 Practical hints
Battery
The battery is located in the engine
compartment on the right hand side.
1Clamps
Removing filter box:
Release clamps1.
Remove filter box.
Installing filter box:
Insert filter box properly.
Secure it with clamps1.
Warning!G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and
precautions when handling automotive
batteries (
page 329).
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
!Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly at an autho-
rized Mercedes-Benz Center.
Refer to Maintenance Booklet for maintenance
intervals or contact an authorized
Mercedes-Benz Center for further information.
Warning!G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.

465 Practical hints
Battery
2Negative terminal
3Positive terminal cover
Disconnecting the battery
Apply the parking brake (page 59).
Make sure gear selector lever is set to
positionP (
page 174).
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start / stop button until
the engine shuts off.
Open the driver’s door.
Open the hood (page 323).
Remove the filter box (page 464).
Read and observe safety instructions
and precautions (
page 464).
Disconnect the battery negative lead
from negative terminal2.
Remove cover3 from the positive
terminal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw securing the
battery.
Remove the battery support and
bracket.
Pull out the ventilation hose from the
battery (depending on battery arrange-
ment in your vehicle model, the ventila-
tion hose is located either on the left or
right side of the battery).
Take out the battery.
Warning!G
With a disconnected battery

you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect

the gear selector lever will remain
locked in positionP
!Always disconnect the battery in the order
described below. Otherwise the vehicle’s elec-
tronics can be damaged.