2005 MERCEDES-BENZ C240 brake

315 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
;
(USA only)
!
(Canada only)
Parking brake
Release brake.
You are driving with the parking brake
set.

Release the parking brake
(page 48).
2
Brake wear
Visit workshop.
The brake pads have reached their wear
limit.

Have the brake pads replaced as soon
as possible.
3
Brake fluid
Visit workshop.
There is insufficient brake fluid in the
reservoir.

Risk of accident! Stop the vehicle and
notify an authorized Mercedes-Benz
Center. Do not add brake fluid! This
will not solve the problem.
Warning!
G
Driving with this message displayed can
result in an accident. Have your brake
system checked immediately. Do not add
brake fluid before checking the brake
system. Overfilling the brake fluid reservoir
can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
booklet.

323 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Backup lamp, left
The left backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Backup lamp, right
The right backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp
Drive to workshop
Brake lamp illumination is delayed or
lamp is permanently on.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake lamp left
The left brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp right
The right brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Display malfunction.
Visit workshop.
The display for the lamps or the system is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp left
The left front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp right
The right front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front left
side marker lamp
The left front side marker lamp is
malfunctioning.

Replace the bulb as soon as possible.
Front right
sider marker lamp
The right front side marker lamp is
malfunctioning.

Replace the bulb as soon as possible.

331 Practical hints
Where will I find ...?
1Vehicle jack
2Collapsible wheel chock and spare
wheel bolts
3Towing eye bolt
4Alignment bolt
5Wheel wrench
6Spare fuses and valve extractor
7Electric air pumpVehicle jackThe vehicle jack is located in the storage
compartment underneath the trunk floor.
Storage position
Remove vehicle jack from its
compartment.

Push crank handle up.
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.

336 Practical hintsWhere will I find ...?In the case of a flat tire, you may
temporarily use the collapsible tire when
observing the following restrictions:

Do not exceed a vehicle speed of
50 mph (80 km/h).


Drive to the nearest tire repair facility
to have the flat tire repaired or
replaced as appropriate.


Do not operate vehicle with more than
one collapsible tire mounted.
For more information, see “Rims and Tires”
(
page 380).
Spare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel,
collapsible tire, or other steel rims
(located in trunk with spare wheel)
!Wheel bolts2 must be used when
mounting the Minispare wheel,
collapsible tire, or other steel rims. The
use of any wheel bolts other than wheel
bolts2 for the Minispare wheel,
collapsible tire, or other steel rims will
physically damage the vehicle’s
brakes. Warning!
G
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.

345 Practical hints
Replacing bulbs
Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamp
LED
2
Halogen headlamp:
Turn signal lamp
Bi-Xenon* headlamp:
Turn signal lamp
1156 A
2357 A
3
Halogen headlamp:
Low beam
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon bulbs yourself. See an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35 W
Lamp
Type
4
Halogen headlamp:
High beam/high beam
flasher
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamp
W5W
5
Front fog lamp
HB4/9006
(55 W)
6
Side marker lamp
W5W
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
a
Parking and side
marker lamp
P 21/5 W
b
Backup lamp
P21W
c
License plate lamps
C5W
d
Rear fog lamp (driver’s
side only), tail and
standing lamp
P 21/4 W

346 Practical hintsReplacing bulbs
Notes on bulb replacement

Only use 12 volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:


Additional turn signals in the exterior
rear view mirrors


High mounted brake lamp


Xenon* lamps


Front fog lamps
Warning!
G
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before
changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas.
A bulb can explode if you

touch or move it when hot


drop the bulb


scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.

351 Practical hints
Replacing bulbs
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 109).

Open the trunk lid (
page 92).
Tail lamp unit
1Latch

Fold the corresponding trim panel to
the side.

Turn latch1 to vertical position and
remove the bulb carrier.
Bulb carrier2Brake lamp bulb
3Backup lamp bulb
4Rear fog lamp (driver’s side only),
tail and standing lamp bulb
5Parking and side marker lamp bulb
6Turn signal lamp bulb
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 and lock it
again with latch1.

Reinstall the trim panel.
License plate lamp
1Screw

Loosen both screws1.

Remove the license plate lamp.

Replace the bulb.

Reinstall the license plate lamp.

Retighten screws1.

353 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flasher
(page 114).

Turn the steering wheel so that the
front wheels are in a straight ahead
position.

Set the parking brake (
page 54).

Move the gear selector lever toP
(manual transmission to first or reverse
gear).

Turn off the engine (
page 56).

Remove the SmartKey from the starter
switch.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
Preparing the vehicle
Prepare the vehicle as described
(page 353).
Vehicles with Minispare wheel:

Take the wheel wrench, the wheel
bolts, and the jack out of the trunk
(page 329).

Take the Minispare wheel out of the
trunk (
page 333).
Vehicles with collapsible tire
(C 55 AMG only):

Take the collapsible tire, wheel wrench,
wheel bolts, jack, and electric air pump
out of the trunk (
page 330).
Warning!
G
The dimensions of the spare wheel
(Minispare or collapsible tire) are different
from those of the road wheels. As a result,
the vehicle handling characteristics change
when driving with a spare wheel mounted.
Adapt your driving style accordingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire pressure and do not ex-
ceed 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 spare wheel mounted.
iOpen doors only when conditions are
safe to do so.