Page 433 of 521

432 Practical hintsReplacing SmartKey batteries
Pull battery compartment3
(page 431) out of the housing in di-
rection of arrow.
Remove the batteries4 in direction of
arrow.
4Battery
5Contact spring
Using a lint-free cloth, insert new
batteries4 under the contact spring
5 with the positive terminal (+) side
facing up.
Return battery compartment 3
(page 431) into housing until it locks
into place.
Slide mechanical key 1 (
page 431)
back into the SmartKey.
Check the operation of the SmartKey.
SmartKey with KEYLESS-GO*
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key
(page 426).
Insert the mechanical key1
(page 431) in side opening and push
grey slide2 (
page 431).
Battery compartment3 (
page 431)
is unlatched.
Pull battery compartment3
(page 431) out of the housing in di-
rection of arrow.1Battery
2Tilt battery up
3Mechanical key
Using mechanical key3 apply pres-
sure to position2.
Battery1 tilts up slightly.
Pull out batteries1 in direction of ar-
row.
Using a lint-free cloth, insert new bat-
teries with the positive terminal (+) side
facing up.
Return battery compartment3
(page 431) into housing until it locks
into place.
Page 434 of 521
433 Practical hints
Replacing bulbs
Replacing bulbs
Bulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.
iSubstitute bulbs will be brought into
use when lamps malfunction. Read and
observe messages in the multifunction
display (
page 412).
Page 436 of 521

435 Practical hints
Replacing 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 light
up, 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
Bi-Xenon* lamps
Front fog lamps
Rear lamps (except license plate
lamps)
Front side marker lamps
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low 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 Bi-Xenon* lamps,
it is dangerous to replace the bulb or repair
the lamp and its components. We recom-
mend that you have such work done by a
qualified technician.
iHave the headlamp adjustment
checked regularly.
Page 446 of 521

445 Practical hints
Flat tire
Guide the spare wheel onto the align-
ment bolt and push it on.
Insert wheel bolts and tighten them
slightly.
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Vehicles with collapsible tire
(E 55 AMG only):
Continue the procedure by following
the instructions under “Inflating the
collapsible tire” (
page 445) and then
“Lowering the vehicle” (
page 447).
Vehicles with Minispare wheel
(except E 55 AMG):
Continue the procedure by following
the instructions under “Lowering the
vehicle” (
page 447).Inflating the collapsible tire
(E 55 AMG only)
Take the electric air pump out of the
trunk (
page 422).
Warning!
G
Only use Genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the ve-
hicle 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
air pump 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 447 of 521

446 Practical hintsFlat tire1Flap
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.
Insert electrical plug 3 into vehicle
cigarette lighter socket.
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.
!Do not operate the electric air pump
longer than 8 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.
Page 457 of 521
456 Practical hintsJump starting
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals4 and2
of the batteries with the jumper cable.
Clamp cable to charged battery4
first.
Start the engine of the disabled vehi-
cle.Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.
Remove the jumper cables first from
negative terminals2 and4 and then
from positive terminals1 and3.
Now you can turn on the lights.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
iThe message
Malfunction - electric
consumers switched off
may appear
in the instrument cluster. It will disap-
pear as soon as the battery is suffi-
ciently charged.
!Do not tow-start the vehicle.
Page 464 of 521
463 Practical hintsFuses
Closing cover (with turn catches)
Install cover1 (
page 462).
Turn catches2 (
page 462) clock-
wise.
Opening cover (without turn catches)
Hold cover at recess, press cover
slightly together to release tabs from
behind trim panel and then pull off cov-
er. Closing cover (without turn catches)
Install cover with tabs on one side of
trim panel, then press cover slightly to-
gether to install cover on other side of
trim panel.
Page 476 of 521
475 Technical data
Rims and tires
Same size tires
16’’ tires
E320 CDI
Rims (light alloy)
8 J x 16 H2
Wheel offset
1.42 in (36 mm)
Summer tires
1
1Radial-ply tires
-
All-season tires
1
225/55 R16 95H M+S
Winter tires
1, 2
2Not available as factory equipment.
-