Page 220 of 399
217 Interior equipment
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Luggage cover – removal and installationRemoval:
Take off securing straps (1).
Pull cover towards rear (2).
Installation:
Place cover into holder.
Attach securing straps to trunk lid.
Note:
Do not place anything on the luggage cover below the 
rear window. 
     
        
        Page 238 of 399

235 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index need to retransmit. During this time you will hear a 
chirp and voice contact will be interrupted. Voice 
contact will resume once the retransmission is 
completed. Once a call is concluded, a chirp will be 
heard and the appropriate indicator lamp will stop 
flashing. The COMAND system operation will resume 
(only vehicles with COMAND).
Important!
If the indicator lamp continues to flash or the system 
does not reset, contact the Response Center at 
1-800-756-9018 (in the USA) or 1-888-923-8367 (in 
Canada), or Mercedes-Benz Customer Assistance at 
1-800-FOR-MERCedes (1-800-367-6372) in the USA or 
Customer Service at 1-800-387-0100 in Canada.Notes:
The indicator lamp in the respective button flashes until 
the call is concluded. Calls can only be terminated by a 
Response Center or Customer Assistance Center 
representative except Roadside Assistance and 
Information calls, which can also be terminated by 
pressing ìbutton on the multifunction steering 
wheel.
When a Tele Aid call has been initiated, the audio 
system or the COMAND system audio (only vehicles 
with COMAND) is muted and the selected mode (radio, 
tape or CD) pauses. The optional cellular phone (if 
installed) switches off. If you must use this phone, the 
vehicle must be parked. Disconnect the coiled cord and 
place the call. The navigation system (if engaged) will 
continue to run. The display in the instrument cluster is 
available for use and spoken commands are only 
available by pressing the RPT button on the COMAND 
unit. A pop-up window will appear in the COMAND 
display to indicate that a Tele Aid call is in progress. 
     
        
        Page 242 of 399

239 Emission control
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Emission control
Certain systems of the engine serve to keep the toxic 
components of the exhaust gases within permissible 
limits required by law. 
These systems, of course, will function properly only 
when maintained strictly according to factory 
specifications. Any adjustments on the engine should, 
therefore, be carried out only by qualified 
Mercedes-Benz Center authorized technicians. Engine 
adjustments should not be altered in any way. Moreover, 
the specified service jobs must be carried out regularly 
according to Mercedes-Benz servicing requirements. 
For details refer to the Service Booklet.
Wa r n i n g !
Inhalation of exhaust gas is hazardous to your 
health. All exhaust gas contains carbon monoxide, 
and inhaling it can cause unconsciousness and 
lead to death.Do not run the engine in confined areas (such as a 
garage) which are not properly ventilated. If you 
think that exhaust gas fumes are entering the 
vehicle while driving, have the cause determined 
and corrected immediately. If you must drive under 
these conditions, drive only with at least one 
window fully open. 
     
        
        Page 244 of 399

241 Starter switch
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Important!
If the electronic key is left in the starter switch 
position 0 for a extended period of time, it can no longer 
be turned in the lock. In this case, remove electronic key 
from starter switch and reinsert.
Caution!
To prevent accelerated battery discharge and a possible 
dead battery, always remove the electronic key from the 
starter switch. Do not leave the electronic key in starter 
switch position 0.Notes:
A warning sounds when the driver’s door is opened 
with the electronic key is in starter switch position 1 
or 0.
If the electronic key cannot be turned in the starter 
switch, the vehicle battery may not be sufficiently 
charged. See battery on page 336 or jump starting on 
page 338.
With the engine at idle speed, the charging rate of the 
alternator (output) is limited.
It is therefore recommended that you turn off 
unnecessary electrical consumers while driving in stop-
and-go traffic. This precaution helps to avoid draining of 
the battery.
Unnecessary strain on the battery and charging system 
may be minimized by turning off the following power 
consumers, for example:
Heated seats, rear window defroster. In addition, the 
automatic climate air volume control should be set to 
the lowest position. 
     
        
        Page 267 of 399

264 Driving instructions
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Winter driving instructions
The most important rule for slippery or icy roads is to 
drive sensibly and to avoid abrupt acceleration, braking 
and steering maneuvers. Do not use the cruise control 
system under such conditions.
When the vehicle is in danger of skidding, move 
selector lever to position “N” or in case of manual 
transmission declutch. Try to keep the vehicle under 
control by corrective steering action.
Road salts and chemicals can adversely affect braking 
efficiency. Increased pedal force may become necessary 
to produce the normal brake effect. We therefore 
recommend depressing the brake pedal periodically 
when traveling at length on salt-strewn roads. This can 
bring road salt impaired braking efficiency back to 
normal. A prerequisite is, however, that this be done 
without endangering other drivers on the road.If the vehicle is parked after being driven on salt treated 
roads, the braking efficiency should be tested as soon as 
possible after driving is resumed while observing the 
safety rules in the previous paragraph.
Wa r n i n g !
If the vehicle becomes stuck in snow, make sure 
that snow is kept clear of the exhaust pipe and 
from around the vehicle with engine running. 
O t h e rw i s e ,  d e a d ly  c a r b o n  m o n ox i d e  ( CO )  ga s e s  m ay  
enter vehicle interior resulting in unconsciousness 
and death.To assure sufficient fresh air ventilation, open a 
window slightly on the side of the vehicle not 
facing the wind. 
     
        
        Page 285 of 399

282 Malfunction and indicator lamps
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Malfunction and indicator lamps 
in the instrument cluster
General information:
If a bulb in the instrument cluster fails to light up 
during the bulb self-check when turning the electronic 
key in starter switch to position 2, have it checked and 
replaced if necessary.
Emission control
Certain systems of the engine serve to keep the toxic 
components of the exhaust gases within permissible 
limits required by law.
These systems, of course, will function properly only 
when maintained strictly according to factory 
specifications. Any adjustments on the engine should, 
therefore, be carried out only by authorized 
Mercedes-Benz Center qualified technicians. Engine 
adjustments should not be altered in any way. Moreover, 
the specified service jobs must be carried out regularly 
according to Mercedes-Benz servicing requirements. 
For details refer to the Service Booklet.
Wa r n i n g !
Inhalation of exhaust gas is hazardous to your 
health. All exhaust gas contains carbon monoxide, 
and inhaling it can cause unconsciousness and 
lead to death. Do not run the engine in confined areas (such as a 
garage) which are not properly ventilated. If you 
think that exhaust gas fumes are entering the 
vehicle while driving, have the cause determined 
and corrected immediately. If you must drive under 
these conditions, drive only with at least one 
window fully open. 
     
        
        Page 314 of 399

311 Fuses
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Stowing things in the vehicle Fuses
Most of your vehicle’s electrical components are fused 
with safety fuses. With the exception of the brake lights, 
all individual lighting system components are 
electronically fused. Before replacing a blown safety 
fuse, determine the cause of the short circuit. Always 
observe amperage and color of fuse.
The circuit for components is protected by a cycled 
circuit breaker interrupted if too much current is being 
drawn. The circuit closes automatically after a short 
time; the circuit is broken again if the malfunction 
reoccurs.
Always use a new fuse for replacement. Never attempt to 
repair or bridge a blown fuse.
A fuse chart is located in fuse box (1).
A special fuse puller is located in the auxiliary fuse box 
in the trunk, see page 314.
Wa r n i n g !
To help avoid personal injury during a collision or 
sudden maneuver, exercise care when stowing 
things. Put luggage or cargo in the trunk if 
possible. Do not pile luggage or cargo higher than 
the seat backs. Do not place anything on the shelf 
below the rear window. 
     
        
        Page 340 of 399

337 Battery
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Removal of filter box:
Release three clamps (1) and remove filter box.
Installation of filter box:
Install filter box properly and secure with 
three clamps (1).Notes:
The gear selector lever will remain locked in 
position “P” and the electronic key can not be turned in 
the starter switch, if the vehicle battery is disconnected 
or discharged.
After reconnecting the battery also set the clock 
(vehicles with COMAND: see COMAND operator’s 
manual) resynchronize the front seat head restraints, 
the express feature of the power windows, the 
panorama sliding / pop-up roof, and the electronic 
stability program (see individual settings on page 121, 
head restraints on page 54, power windows on page 197, 
synchronizing the sliding / pop-up roof on page 202 and 
electronic stability program on page 274).
Battery recycling
Batteries contain materials that can harm the 
environment with improper disposal.
Large 12 Volt storage batteries contain lead.
Recycling of batteries is the preferred method of 
disposal.
Many states require sellers of batteries to accept old 
batteries for recycling.