Page 55 of 302
51 Seats
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Note:
When in operation, the seat heater consumes a large 
amount of electrical power. It is not advisable to use the 
seat heater longer than necessary.
The seat heaters may automatically switch off if too 
many power consumers are switched on at the same 
time, or if the battery charge is low. When this occurs, 
the indicator lamp in the switch will blink (both 
indicator lamps blink during rapid seat heating mode). 
The seat heaters will switch on again automatically as 
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to 
you, the seat heaters can be switched off. 
     
        
        Page 71 of 302

67 Restraint systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Safety guidelines for the seat belt, emergency 
tensioning retractor and airbag
Wa r n i n g !
• Damaged seat belts or belts that were highly 
stressed in an accident must be replaced and 
their anchoring points must also be checked. 
Use only belts installed or supplied by an 
authorized Mercedes-Benz Center.• Do not pass belts over sharp edges.• Do not make any modification that could 
change the effectiveness of the belts.• Airbags and ETR’s are designed to function on 
a one-time-only basis. An airbag or emergency 
tensioning retractor (ETR) that was activated 
must be replaced.
• No modifications of any kind may be made to 
any components or wiring of the “SRS”. This 
includes changing or removing any component 
or part of the “SRS”, the installation of 
additional trim material, badges etc. over the 
steering wheel hub, passenger airbag cover, or 
door trim panels, and installation of additional 
electrical/electronic equipment on or near 
“SRS” components and wiring. Keep area 
between airbags and occupants free of objects 
(e.g. packages, purses, umbrellas, etc.).• An airbag system component within the 
steering wheel gets hot after the airbag has 
inflated. Do not touch.• Improper work on the system, including 
incorrect installation and removal, can lead to 
possible injury through an unintended 
activation of the “SRS”.• In addition, through improper work there is 
the risk of rendering the “SRS” inoperative or 
causing unintended airbag deployment. Work 
on the “SRS” must therefore only be performed 
by an authorized Mercedes-Benz Center. 
     
        
        Page 76 of 302

72 Rear view mirrors
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Exterior rear view mirrors
The switch is located on the center console.
Turn key in steering lock to position 2.
First select the mirror to be adjusted - turn switch:
1Left mirror
2Right mirror
To adjust, toggle the switch forward, backward or to 
either side.With the key in steering lock position 2, the driver’s 
side mirror reflection brightness responds to changes in 
light sensitivity.
With gear selector lever in position “R”, or with the 
interior lamp switched on, the driver’s side mirror 
brightness does not respond to changes in light 
sensitivity.
Notes:
The exterior mirrors have electrically heated glass. The 
heater switches on automatically, depending on outside 
temperature.
If the mirror housing is forcibly pivoted from its normal 
position, it must be repositioned by applying firm 
pressure until it snaps into place.
2
1
P82.00-0359-26
Wa r n i n g !
Exercise care when using the passenger-side 
mirror. The passenger-side exterior mirror is 
convex (outwardly curved surface for a wider field 
of view). Objects in mirror are closer than they 
appear. Check your inside rear view mirror or 
glance over your shoulder before changing lanes. 
     
        
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131 Interior equipment
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Lighter
1Lighter
Turn key in steering lock to position 1 or 2.
Push in lighter (1); it will pop out automatically when 
hot.Note:
The lighter socket can be used to accommodate 
electrical accessories up to a maximum 85 W.
Wa r n i n g !
Never touch the heating element or sides of the 
lighter, they are extremely hot, hold at knob only.When leaving the vehicle always remove the key 
from the steering lock. Do not leave children 
unattended in the vehicle, or with access to an 
unlocked vehicle. Unsupervised use of vehicle 
equipment may cause serious personal injury. 
     
        
        Page 169 of 302

165 Steering lock
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Steering lock
0The key can be withdrawn in this position only. The 
steering is locked when the electronic key is 
removed from the steering lock. If necessary, move 
steering wheel slightly to allow the locking 
mechanism to engage.
The key can be removed only with your foot off the 
brake pedal and the selector level in position “P”. 
After removing the key or with the key in steering 
lock position 0, the selector lever is locked in 
position “P”.1Steering is unlocked.
(If necessary, move steering wheel slightly to allow 
the key to be turned clockwise to position 1.)
Most electrical consumers can be operated. For 
detailed information see respective subjects.
2Driving position.
3Starting position.
See page 167 for instructions on starting and stopping 
the engine.
2
3
0
1
Wa r n i n g !
When leaving the vehicle always remove the key 
from the steering lock, and lock the vehicle. Do not 
leave children unattended in the vehicle, or with 
access to an unlocked vehicle. Unsupervised use of 
vehicle equipment may cause serious personal 
injury. 
     
        
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166 Steering lock
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Notes:
A warning sounds when the driver’s door is opened 
while the key is in steering lock position 1 or 0.
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.Caution!
To prevent accelerated battery discharge and a possible 
dead battery, always remove the key from the steering 
lock. Do not leave the key in steering lock position 0. 
     
        
        Page 186 of 302

182 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Deep water
Caution!
Do not drive through flooded areas or water of unknown 
depth.
If you must drive through deep water, drive slowly to 
prevent water from entering the engine compartment or 
passenger compartment, being ingested by the air 
intake, possibly causing damage to electrical 
components or wiring, to engine or transmission that is 
not covered by the Mercedes-Benz Limited Warranty.
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”. 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. 
Otherwise, deadly carbon monoxide (CO) gases may 
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 187 of 302

183 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Winter driving
Have your vehicle winterized at your authorized 
Mercedes-Benz Center before the onset of winter.
• Change the engine oil if the engine contains an oil 
which is not approved for winter operation. For 
viscosity (SAE/CCMC class) and filling quantity,
see page 277.
• Check engine coolant anticorrosion/antifreeze 
concentration.
• Additive for the windshield washer and headlamp 
cleaning system: Add MB Concentrate “S” to a 
premixed windshield washer solvent/antifreeze 
which is formulated for below freezing 
temperatures, see page 88.
• Test battery: Battery capacity drops with decreasing 
ambient temperature. A well charged battery helps 
to ensure that the engine can be started, even at low 
ambient temperatures.
• Tires: We recommend M+S rated radial-ply tires on 
all four wheels for the winter season. Observe 
permissible maximum speed for M+S rated 
radial-ply tires and the legal speed limit.Note:
In winter operation, the maximum effectiveness of the 
antilock brake system (ABS) or electronic stability 
program (ESP) can only be achieved with M+S rated 
radial-ply tires and/or snow chains recommended by 
Mercedes-Benz. Snow chains maximize performance.
Block heater (for Canada only)
The engine is equipped with a block heater.
The electrical cable may be installed at your authorized 
Mercedes-Benz Center.
Traveling abroad
Abroad, there is a widely-spread Mercedes-Benz service 
network at your disposal. If you plan to travel into areas 
which are not listed in the index of your Center 
directory, you should request pertinent information 
from your authorized Mercedes-Benz Center.