
171 Automatic transmission
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cluster displayPractical hints Car care Index Gear ranges:
Upshift through 4th gear only. Suitable for 
performance driving.
Upshift through 3rd gear only. Suitable for 
moderately steep hills. Since the transmission 
does not shift higher than 3rd gear, this gear 
selection will allow use of the engine’s braking 
power downhill.Upshift through 2nd gear only. For driving in 
mountainous regions or under extreme operating 
conditions. This gear selection will allow use of 
the engine’s braking power when descending 
steep grades.
Use this position, which makes maximum use of 
the engine’s braking effect, while descending 
very steep or lengthy downgrades and only at 
speeds below 40 mph (60 km / h). 

180 Driving instructions
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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”. Try to keep the vehicle 
under control by corrective steering action.
Caution!
Do not use LOW RANGE mode when driving on ice or 
packed snow. At speeds below 18 mph (30 km / h) 
vehicle steering is adversely affected by the LOW 
RANGE ABS.
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. 

185 Driving instructions
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and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Driving on embankments, slopes and other steep 
inclines should only be done straight up or downhill, i.e. 
in the line of gravity.
Do not drive along the side of a slope (danger of vehicle 
rollover). If in doing so, the vehicle begins to show a 
tendency to roll, immediately steer into a line of gravity 
(straight up or downhill).
To help avoid the vehicle rolling over, never turn it 
around on steep inclines. If the vehicle cannot complete 
the attempted climb, back it down in reverse gear.
Utilize the engine’s braking power when descending a 
slope, observe the engine speed (do not overrev the 
engine). Apply the service brake as needed.
Check the brakes after a lengthy downgrade drive.
Notes:
Avoid excessive engine speeds – drive with moderate 
engine speeds (max. 3000 RPM).
Select gear range “2” or “1” on the automatic 
transmission, see page 165.Traction in steep terrain:
Be easy on the accelerator and watch for continuous 
wheel traction when driving in steep terrain.
The 4-ETS+ helps greatly when starting out on a steep 
incline. The front wheels have then the tendency to slip 
due to the weight reduction over the front axle. The ETS 
recognizes the situation and limits the torque for the 
front wheels by braking them. Simultaneously the 
torque for the rear wheels is increased.
See page 203 for four wheel electronic traction system 
(4-ETS+).
Driving across a hilltop:
To prevent the vehicle from speeding up too much after 
climbing a hill, decelerate just ahead of a hilltop (do not 
select gear range “N”). Use the momentum of the 
vehicle to drive across the hilltop. Driving in this 
manner prevents the vehicle from jumping across the 
hilltop and thus loosing its forward momentum. 

186 Driving instructions
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and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Driving downhill:
Select gear range “1” on the automatic transmission, 
see page 165.
Drive downhill observing the same rules as driving 
uphill.
Driving on embankments, slopes and other steep 
inclines should only be done straight up or downhill, i.e. 
in the line of gravity.
Do not drive along the side of a slope (danger of vehicle 
rollover). If in doing so, the vehicle begins to show a 
tendency to roll, immediately steer into a line of gravity 
(straight up or downhill).Utilize the engine’s braking power when descending a 
slope, observe the engine speed (do not overrev the 
engine). Apply the service brake as needed.
The special low range ABS setting allows for precise and 
brief (cyclical) blocking of the front wheels, permitting 
them to dig into loose ground. Remember that the front 
wheels when stopped, slide across a surface, thus loose 
their ability to steer the vehicle.
Check the brakes after a lengthy downgrade drive.
Important!
Only apply the service brake if the vehicle travels 
straight downhill, i.e. in the line of gravity. 

193 Driving instructions
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cluster displayPractical hints Car care Index Attaching a trailer
Please observe maximum permitted trailer dimensions 
(width and length).
Most states and all Canadian provinces require safety 
chains between your tow vehicle and the trailer. The 
chains should be crisscrossed under the trailer tongue. 
They must be attached to the hitch receiver, and not to 
the vehicle’s bumper or axle. Be sure to leave enough 
slack in the chains to permit turning corners.
Most states and all Canadian provinces require a 
separate brake system at various trailer weights.Caution!
Do not connect a trailer brake system (if trailer is so 
equipped) directly to the vehicle’s hydraulic brake 
system, as your vehicle is equipped with antilock 
brakes. If you do, neither the vehicle’s brakes nor the 
trailer’s brakes will function properly.
The provided vehicle electrical wiring harness for trailer 
towing has a brake signal wire (color orange) for 
hook-up to a brake controller.
Most states and all Canadian provinces require a 
break-away switch on trailers with a separate brake 
system. The switch activates the trailer brakes in the 
possible event that the trailer might separate from the 
tow vehicle.
You should consider using a trailer sway control system. 
For further information see your authorized 
Mercedes-Benz Light Truck Center. 

251 Battery
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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.. 

253 Jump starting
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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. 

291 Technical data
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data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index Main dimensions
Model ML 320 ML 430 ML 55 AMG
Overall vehicle length 180.6 in (4587 mm) 180.6 in (4587 mm) 182.5 in (4635 mm)
Overall vehicle width 86.2 in (2190 mm) 86.2 in (2190 mm) 86.2 in (2190 mm)
Overall height 71.6 in (1820 mm) 71.6 in (1820 mm) 71.0 in (1804 mm)
Wheel base 111.0 in (2820 mm) 111.0 in (2820 mm) 111.0 in (2820 mm)
Track, front 60.4 in (1535 mm) 61.2 in (1555 mm) 61.2 in (1555 mm)
Track, rear 60.4 in (1535 mm) 61.2 in (1555 mm) 61.2 in (1555 mm)