MERCEDES-BENZ C55AMG 2006 W203 Owner's Manual
Page 401 of 473
400 Practical hints
Replacing bulbs
Front turn signal lamp bulb
Turn bulb socket3 with the bulb 
counterclockwise and remove it.
Press gently onto the bulb and turn it 
counterclockwise out of bulb 
socket3.
Press new bulb gently into bulb 
socket3 and turn clockwise until it 
engages.
Place bulb socket3 back into the 
lamp and turn it clockwise.
Parking and standing lamp bulb
Press the clamp on housing cover2 
and remove it. 
Pull out bulb socket5 with the bulb.
Pull the bulb out of bulb socket5.
Press the new bulb into bulb socket5.
Press bulb socket5 back into the 
lamp.
Align housing cover2 and press until 
it engages.Additional turn signal lamp bulbs
The additional turn signal lamps in the 
exterior 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 turn signal unit replaced 
by an authorized Mercedes-Benz Center.
Front side marker lamp bulbs
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 114).
Open the trunk (page 99).
Tail lamp unit
1Latch 
Page 402 of 473
401 Practical hints
Replacing bulbs
Fold the corresponding trim panel to 
the side.
Turn latch1 to vertical position and 
remove the bulb carrier.
Bulb carrier
2Brake 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. 
Page 403 of 473
402 Practical hints
Replacing wiper blades
Removing and installing wiper bladesRemove SmartKey from starter switch.
Removing wiper blades
1Unlocking
2TabPull the tab2 in the direction of 
arrow1.
The wiper blade is unlocked.
Lift up the wiper arm as far as you need 
to remove the wiper blade.
Carefully fold the wiper arm back to 
rest on the windshield.
Warning!G
For safety reasons, switch off wipers and 
remove SmartKey from starter switch be-
fore replacing a wiper blade. Otherwise, the 
wiper motor could suddenly turn on and 
cause injury.
!
Never open the hood when the wiper 
arms are folded forward.
For your convenience, we recommend 
that you have this work carried out by 
an authorized Mercedes-Benz Center.
!
Hold on to the wiper arm when folding 
the wiper arm back. If released, the 
force of the impact from the tensioning 
spring could crack the windshield. 
Page 404 of 473
403 Practical hints
Replacing wiper blades
Installing wiper blades
1Recess
2Tab
3Locking
4Taper piece
5Square recessLift up the wiper arm as far as you need 
to position the wiper blade under the 
wiper arm and hold it.
Carefully fold the wiper arm back and 
make sure that the taper piece4 
slides into the recess1 at the wiper 
blade.
Slide the tab2 back in the direction of 
arrow3 until it audibly engages.
The wiper blade is locked.
!
Make certain that the square recess5 
on the taper piece4 is on the top, oth-
erwise the taper piece4 can not slide 
in the recess1 at the wiper blade. If 
the square recess5 is not at the top 
turn the taper piece4 around to bring 
the square recess5 to the top.
!
Hold on to the wiper arm when folding 
the wiper arm back. If released, the 
force of the impact from the tensioning 
spring could crack the windshield.
Make certain that the wiper blades are 
properly installed. Improperly installed 
wiper blades may cause windshield 
damage. 
Page 405 of 473
404 Practical hints
Flat tire
Preparing the vehicle
Park the vehicle in a safe distance from 
moving traffic on a hard, flat surface 
when possible.
Turn on the hazard warning flasher 
(
page 119).
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.
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 404).
Take the collapsible tire, wheel wrench, 
wheel bolts, jack, and electric air pump 
out of the trunk (
page 380).
Warning!G
The dimensions of the spare wheel with col-
lapsible tire are different from those of the 
road wheels. As a result, the vehicle han-
dling 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.
Do not switch off the ESP
® when a spare 
wheel is mounted.
i
Open doors only when conditions are 
safe to do so. 
Page 406 of 473
405 Practical hints
Flat tire
Lifting the vehicle
Prevent the vehicle from rolling away 
by blocking wheels with wheel chocks 
or other sizable objects.
One wheel chock is included with the 
vehicle tool kit (
page 380).
When changing wheel on a level surface:
Place the wheel chock in front of and 
another sizable 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 wheel chocks and another siz-
able object on the downhill side block-
ing both wheels of the axle not being 
worked on.
On wheel to be changed, loosen but do 
not yet remove the wheel bolts 
(approximately one full turn with 
wrench). 
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. Al-
ways lower the vehicle onto sufficient ca-
pacity jackstands before working under the 
vehicle.
 
Page 407 of 473
406 Practical hints
Flat tire
The jack take-up brackets are located 
directly behind the front wheel housings 
and in front of the rear wheel housings.
1Take-up bracket
2Jack
Place jack2 on firm ground.
Position jack2 under take-up 
bracket1 so that it is always vertical 
(plumb-line) as seen from the side, 
even if the vehicle is parked on an 
incline.
Jack up the vehicle until the wheel is a 
maximum of 1.2 in (3 cm) from the 
ground. Never start engine while 
vehicle is raised.Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and 
remove.
Replace this wheel bolt with alignment 
bolt1 supplied in the tool kit.
Remove the remaining bolts.
Remove the wheel.
Warning!G
The jack is intended only for lifting the 
vehicle briefly for wheel changes. It is not 
suited for performing maintenance work 
under the vehicle.
Never start the engine when the vehicle 
is raised.
Never lie down under the raised vehicle.
!
Do not place wheel bolts in sand or dirt. 
This could result in damage to the bolts 
and wheel hub threads.
 
Page 408 of 473
407 Practical hints
Flat tire
Mounting the spare wheel
1Wheel bolt for light alloy rims
2Wheel bolt for spare wheel with 
collapsible tire (located in trunk with 
spare wheel)
Clean contact surfaces of wheel and 
wheel hub.
Guide spare wheel onto the alignment 
bolt and push it on.
Insert wheel bolts and tighten them 
slightly.
!
Wheel bolts2 must be used when 
mounting the spare wheel. The use of 
any wheel bolts other than wheel 
bolts2 for the spare wheel will physi-
cally damage the vehicle’s brakes.
!
To avoid paint damage, place wheel flat 
against hub and hold it there while 
installing first wheel bolt.
Warning!G
Always replace wheel bolts that are 
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be 
repaired immediately. Do not continue to 
drive under these circumstances! Contact 
an authorized Mercedes-Benz Center or call 
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to 
come off. This could cause an accident. 
Make sure to use the correct wheel bolts.
 
Page 409 of 473
408 Practical hints
Flat tire
Unscrew the alignment bolt, install last 
wheel bolt and tighten slightly.Inflating the collapsible tire
Take the electric air pump out of the 
trunk (
page 381).1Flap
2On/off switch
3Electrical plug
4Air hose with pressure gauge and vent 
screw
5Union nut
Open flap 1 on electric air pump.
Pull out electrical plug 3 and air hose 
with pressure gauge 4.
Remove the valve cap from the 
collapsible tire valve.
Screw union nut5 onto the collaps-
ible tire valve.
Warning!G
Only use genuine equipment 
Mercedes-Benz wheel bolts. Other wheel 
bolts may come loose.
Do not tighten the wheel bolts when the 
vehicle is raised. Otherwise the vehicle 
could fall off the jack.
Warning!G
Inflate collapsible tire only after the wheel is 
properly mounted.
Inflate the collapsible tire using the electric 
pump (
page 408) before lowering the 
vehicle.
Warning!G
Observe instructions on air pump label.
!
Do not lower the vehicle before 
inflating the collapsible tire. Otherwise 
the rim may be damaged.
 
Page 410 of 473
409 Practical hints
Flat tire
Insert electrical plug 3 into vehicle 
cigarette lighter socket (
page 263).
Turn the SmartKey in the starter switch 
to position1.
PressI on electric air pump switch 2.
The electric air pump should now 
switch on and inflate the collapsible 
tire.
Inflate the tire to approximately 51 psi 
(3.5 bar).
This takes about 5 minutes for the col-
lapsible tire. Air hose 4 and union 
nut5 can become hot during infla-
tion. Exercise proper caution to avoid 
burning yourself when using the equip-
ment.
Press0 on electric air pump switch 2.
Turn the SmartKey in the starter switch 
to position0.
If the tire pressure is above 51 psi 
(3.5 bar), release excess tire pressure 
using the vent screw.
Detach the electric air pump.
Store the electrical plug and the air 
hose behind the flap and place the 
electric air pump back in the trunk.
!
The cigarette lighter (page 262) is 
not designed for use with the electric 
air pump. Use the power outlet in the 
rear passenger compartment 
(
page 263) for electric air pump 
operation.
!
Do not operate the electric air pump 
longer than 6 minutes without interrup-
tion. Otherwise it may overheat.
You may operate the electric air pump 
again after it has cooled off.
Warning!G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires 
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes, 
etc.
Do not underinflate tires. Underinflated tires 
wear unevenly, adversely affect handling 
and fuel economy, and are more likely to fail 
from being overheated.