2007 MERCEDES-BENZ ML320CDI open gas tank

352 OperationAt the gas stationRefueling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey or the SmartKey with
KEYLESS-GO* automatically
locks/unlocks the fuel filler flap.

Turn off the engine

by turning the SmartKey to
position0 (
page 40). Remove the
SmartKey from the starter switch.


by pressing the KEYLESS-GO*
start/stop button (
page 41).
Open the driver’s door (with the
driver’s door open, starter switch is
now in position0, same as
SmartKey removed from starter
switch).

Briefly push on fuel filler flap at the po-
sition indicated by the arrow.
The fuel filler flap opens slightly.
Warning!
G
Gasoline and diesel fuels are highly flamma-
ble and poisonous. They burn violently and
can cause serious injury.
Never allow sparks, flame or smoking mate-
rials near gasoline or diesel fuel!
Turn off the engine before refueling.
Whenever you are around gasoline or diesel
fuel, avoid inhaling fumes and skin or cloth-
ing contact, extinguish all smoking materi-
als.
Direct skin contact with gasoline or diesel
fuels and the inhalation of gasoline or diesel
fuel vapors can damage your health.
Warning!
G
Do not fill diesel tanks with gasoline. Do not
mix diesel fuel with gasoline. Otherwise the
fuel system and engine could be damaged.
In addition, the vehicle could catch fire.!
Damage resulting from mixing gasoline with
diesel is not covered by the Mercedes-Benz
Limited Warranty.
!
Diesel engine: When filling the diesel fuel
tank using fuel containers, place a filling filter, a
suede cloth or a clean flannel cloth as a filter.
Otherwise, particles from the fuel container
could clog the fuel lines and/or the diesel injec-
tion system.

353 Operation
At the gas station

Open the fuel filler flap completely.

Turn the fuel cap to the left and hold on
to it until possible pressure is released.

Take off the fuel cap.

To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.

Only fill your tank until the filler nozzle
unit cuts out – do not top up or over-
fill.

Replace the fuel cap by turning it
clockwise until it audibly engages.

Close the fuel filler flap.
You should hear the latch close shut.
!
The fuel filler cap is tethered to the fuel filler
neck. Do not drop the cap. It could damage the
vehicle paint finish.
Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.
i
Leaving the engine running and the fuel cap
open can cause the yellow fuel tank reserve
warning lamp to flash and the ?malfunction
indicator lamp (USA only) or the± malfunc-
tion indicator lamp (Canada only) comes on.
For more information, see “Practical hints”
(
page 417).
i
Gasoline engine: Only use premium unlead-
ed gasoline with a minimum Posted Octane Rat-
ing of 91 (average of 96 RON/86 MON).
Information on gasoline quality can normally be
found on the fuel pump.
For more information on gasoline, see “Premium
unleaded gasoline (gasoline engine)”
(
page 547), see “Fuel requirements”
(page 548), and the Factory Approved Service
Products pamphlet.
i
Diesel engine: Only use commercially avail-
able vehicular diesel fuels No. 2 or No. 1 (ASTM
D975 No. 2-D or No. 1-D). Information on diesel
quality can normally be found on the fuel pump.
The sulfur content in diesel fuel should not
exceed 50 parts per million (ppm). When using
diesel fuel with a sulfur content of above
300 ppm, the engine oil interval should be
shortened.
For more information on diesel fuels, refer to the
Factory Approved Service Products pamphlet or
contact an authorized Mercedes-Benz Light
Truck Center.
!
Diesel engine:
The engine is more susceptible to wear and
damage if you use


marine diesel fuel


heating oil


additives
The use of such non-approved fuels and/or
special additives is not covered by the
Mercedes-Benz Limited Warranty.

354 OperationAt the gas stationLow outside temperatures
(diesel engine)
To prevent malfunctions, diesel fuel with
improved cold flow characteristics is of-
fered in the winter months. Check with
your fuel retailer.
Check regularly and before a long trip
Open the hood (
page 356).
Example ML 5001Brake fluid
2Coolant level
3Windshield washer system and
headlamp cleaning system*
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 358).Brake fluid
Coolant
For normal replenishing, use water (pota-
ble water quality).
For more information, see “Coolant level”
(
page 362) and see “Fuels, coolants, lu-
bricants” (
page 543).
!
Do not fill the tank with gasoline. Do not
blend diesel fuel with gasoline or kerosine. The
fuel system and engine will otherwise be dam-
aged, which is not covered by the
Mercedes-Benz Limited Warranty.
!
If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks immediately. Notify an
authorized Mercedes-Benz Light Truck Center
immediately. Do not add brake fluid as this will
not solve the problem. For more information, see
“Brake fluid” (
page 546).

561 Index
Fuel cap
Messages in the multifunction
display 455
Fuel consumption statistics
After start 180
Since last reset 181
Fuel filler flap 352
Locking/unlocking 352
Opening 352
Opening in an emergency 477
Fuel tank
Capacity 545
Filler flap 352
Fuel, Premium unleaded gasoline 545
Fuels, coolants, lubricants etc. 543
Fuses 522
Fuse box in cargo compartment 523
Fuse box in engine compartment 523
Fuse box in passenger
compartment 524
Fuse chart 469, 522
Fuse extractor 469, 522
Replacing 522
Spare fuses 469, 522G
Garage door opener* 316
Gasoline see Fuel
GAWR 395
Gear range
Automatic transmission 193
Limiting 193
Shifting into optimal 195
Gear selector lever 25, 54, 185
Cleaning 411
Gearshift pattern 185
Messages in the
multifunction display 438
Position 188
Shifting procedure 188
Transmission position 189
Global locking/unlocking see Key,
SmartKey
Glove box 294
Good visibility 200
Gross Axle Weight Rating see GAWR
Gross Trailer Weight see GTW
Gross Vehicle Weight Rating see GVWRGross Vehicle Weight see GVW
GTW 395
GVW 395
GVWR 395
H
Halogen headlamp see Headlamps
Hands-free microphone 33
Hard plastic trim items, cleaning 411
Hazard warning flasher 142
Head restraints 44, 128
Active head restraint 80, 128
Front seats, Adjusting 44
Rear seats 81
Rear seats, Adjusting 129
Rear seats, Removing and
installing 129
Headlamp aim
Adjusting 492
Headlamp cleaning system* 200, 363
Headlamp shut-off delay see Delayed
shut-off, Exterior lamps