
148 Tele Aid
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Tele Aid
Important!
The initial activation of the Tele Aid system may only be 
performed by completing the subscriber agreement and 
placing an acquaintance call using the “SOS” button. 
Failure to complete either of these steps will result in a 
system that is not activated. If the system is not 
activated the indicator lamp in the “SOS” button stays 
on after turning electronic key in starter switch to 
position 2 and the message “TELE AID – NOT 
ACTIVATED” will be shown in the MCS display for 
approx. 10 seconds.
If you have any questions regarding activation, please 
call the Response Center at 1-800-756-9018 (in the USA) 
or 1-888-923-8367 (in Canada).
(Telematic Alarm Identification on Demand)
The Tele Aid system consists of three types of response; 
automatic and manual emergency, roadside assistance 
and information.The Tele Aid system is operational providing that the 
vehicle’s battery is charged, properly connected, not 
damaged and cellular and GPS coverage is available. 
The speaker volume of a Tele Aid call can be adjusted 
using the volume control on the MCS unit. To activate, 
press the “SOS” button, the Roadside Assistance 
button• or the Information button¡, depending 
on the type of response required.
Shortly after the completion of your Acquaintance Call, 
you will receive a user ID and password via first call 
mail. By visiting www.mbusa.com and selecting 
“Tele Aid” (USA only), you will have access to account 
information, remote door unlock, Info Services
* profile 
and more.
* OptionalSystem self-check
Initially, after turning the key in steering lock to 
position 2, malfunctions are detected and indicated (the 
indicator lamps in the “SOS” button, the Roadside 
Assistance button• and Information button¡ 
stay on longer than 10 seconds or do not come on). The 
message “TELE AID – PLEASE VISIT WORKSHOP” 
appears in the MCS display. 

163 Steering lock
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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.
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. 

181 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 Light Truck 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 292.
•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 237.
•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.In winter operation, the maximum effectiveness of the 
antilock brake system (ABS), the four wheel electronic 
traction system (4-ETS+), the electronic stability 
program (ESP), and electronic brake proportioning 
(EBP) can only be achieved with M+S rated radial-ply 
tires and / or snow chains recommended by 
Mercedes-Benz. Snow chains maximize performance.
For driving instructions using snow chains see 
page 179.
Deep water
Caution!
Do not drive through flooded areas or water of unknown 
depth. Before driving through water, determine its 
depth. It should not be deeper than approximately 
20 inches (50 cm).
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. 

206 Driving systems
Te ch n ica l
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and controlsOperationDrivingInstrument 
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If the BAS / ESP malfunction indicator lamp¿ comes 
on continuously with the engine running, a malfunction 
has been detected in either system. Only partial engine 
output will be available.
If the BAS malfunctions, the brake system functions in 
the usual manner, but without BAS.
If the BAS / ESP malfunction indicator lamp stays 
illuminated, have the BAS or ESP checked at your 
authorized Mercedes-Benz Light Truck Center as soon 
as possible.
With the ABS malfunctioning, the ESP is also switched 
off.
Driving the vehicle with varied size tires will cause the 
wheels to rotate at different speeds, therefore the ESP 
may activate (yellow ESP warning lampv in 
speedometer dial comes on). For this reason, all wheels, 
including the spare wheel, must have the same tire 
outside diameter.When testing the parking brake on a brake test 
dynamometer, the engine must be shut off. Otherwise, 
the ESP will immediately be engaged and will apply the 
rear wheel brakes.
In winter operation, the maximum effectiveness of the 
ESP is only achieved with Mercedes-Benz recommended 
M+S rated radial-ply tires and / or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery 
disconnected or empty), the BAS / ESP malfunction 
indicator lamp may be illuminated with the engine 
running.
After driving off the BAS / ESP malfunction indicator 
lamp should go out after approximately 110 - 220 yd 
(100 - 200 m). 

227 Contents - Practical hints
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit  .....................................228
Fuses ................................................228
Electrical outlet  ..............................230
Stowing things in the vehicle  ......230
Hood ................................................. 231
Checking engine oil level  .............233
Automatic transmission 
fluid level  ...................................234
Engine oil consumption  ................234
Coolant level  ...................................234
Adding coolant  ...........................235
Windshield washer/headlamp 
cleaning system .........................236
Windshield and
headlamp washer fluid 
mixing ratio  ................................237Vehicle jack, wheel bolt
wrench and screwdriver  ......... 237
Air pump ......................................... 239
Wheels ............................................ 240
Tire replacement  ....................... 240
Rotating wheels  ......................... 241
Spare wheel .................................... 242
Changing wheels  ........................... 245
Tire inflation pressure  ................. 250
Battery ............................................. 251
Jump starting  ................................. 253
Towing the vehicle  ........................ 255
Transmission selector lever, 
manually unlocking  .................. 259
Stranded vehicle  ............................ 259Exterior lamps  ................................260
Headlamp assembly ................... 261
Taillamp assemblies  ..................265
Adjusting headlamp aim ...............268
Remote control
battery replacement  .................270
Synchronizing
remote control  ............................ 271
Emergency operation of 
sliding/pop-up roof  ...................272
Emergency operation of
Skyview Top ...............................273
Manual release for 
fuel filler flap ............................. 274
Replacing wiper blades .................275
Roof rack  ......................................... 276 

251 Battery
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index If a tire constantly loses air, it should be inspected for 
damage.
The spare tire should be checked periodically for 
condition and inflation. Spare tire will age and become 
worn over time even if never used, and thus should be 
inspected and replaced when necessary.Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the engine 
compartment. 
The service life of the battery is dependent on its 
condition of charge. The battery should always be kept 
sufficiently charged, in order to last an optimum length 
of time.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can 
result in sudden deflation (blowout) because they 
are more likely to become punctured or damaged 
by road debris, potholes etc.. Follow recommended 
inflation pressures.Do not overload the tires by exceeding the specified 
vehicle capacity weight (as indicated by the label 
on the driver’s door latch post). Overloading the 
tires can overheat them, possibly causing a 
blowout.
Wa r n i n g !
Failure to follow these instructions can result in 
severe injury or death.Never lean over batteries while connecting, you 
might get injured.Battery fluid contains sulfuric acid. Do not allow 
this fluid to come in contact with eyes, skin or 
clothing. In case it does, immediately flush affected 
area with water and seek medical help if necessary.A battery will also produce hydrogen gas, which is 
flammable and explosive. Keep flames or sparks 
away from battery, avoid improper connection of 
jumper cables, smoking etc.. 

252 Battery
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Therefore, we strongly recommend that you have the 
battery charge checked frequently, and corrected if 
necessary, especially if you use the vehicle less than 
approximately 200 miles (300 km) per month, 
mostly for short distance trips, or if it is not used for 
long periods of time.
Only charge a battery with a battery charger after the 
battery has been disconnected from the vehicle’s 
electrical circuit.
Always disconnect the battery negative lead first and 
connect last.
When removing and connecting the battery, always 
make sure that all electrical consumers are off and the 
key is in steering lock position 0. The battery must 
always be securely installed when the vehicle is in 
operation. During removal and installation always 
protect the disconnected battery positive (+) terminal 
with the cover attached to the battery.
While the engine is running the battery terminal clamps 
must not be loosened or detached, otherwise the 
generator and other electronic components would be 
damaged.Note:
After reconnecting the battery also set the clock in 
instrument cluster (see page 80), set date in trip 
computer (see page 83), resynchronize the sliding / pop-
up roof (see page 272), the Skyview Top (see page 273) 
and the electronic stability program (ESP) (see 
page 206).
Battery recycling
Batteries contain material 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. 

253 Jump starting
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Jump startingImportant!
A discharged battery can freeze at approximately +14°F 
(–10°C). In that case, it must be thawed out before 
jumper cables are used. Attempting to jump start a 
frozen battery can result in it exploding, causing 
personal injury. 
Jumper cable specifications:
•Minimum cable cross-section of 25 mm
2 or 
approximately 2 AWG
•Maximum length of 11.5 ft. (3.5 m).
If the battery is discharged, the engine should be started 
with jumper cables and the (12 V) battery of another 
vehicle.
Only use 12 V battery to jump start your vehicle. Jump 
starting with more powerful battery could damage the 
vehicle’s electrical systems, which will not be covered 
by the Mercedes-Benz Limited Warranty.
The battery is located in the engine compartment.
Wa r n i n g !
Failure to follow these directions will cause 
damage to the electronic components, and can lead 
to a battery explosion and severe injury or death.Never lean over batteries while connecting or jump 
starting, you might get injured.Battery fluid contains sulfuric acid. Do not allow 
this fluid to come in contact with eyes, skin or 
clothing. In case it does, immediately flush affected 
area with water, and seek medical help if 
necessary.A battery will also produce hydrogen gas, which is 
flammable and very explosive. Keep flames or 
sparks away from battery, avoid improper 
connection of jumper cables, smoking etc..Read all instructions before proceeding.