Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 241)

Engine compartment
239
X Closing: Turn fuel filler cap 2 clockwise
until it audibly engages.
i Make sure to close the fuel filler flap
before locking your vehicle as the flap
locking pin prevents closing after you have
locked the vehicle.
X Close fuel filler flap 1 .
Low outside temperatures (diesel
engine)
! Do not fill the tank with gasoline. Do not
blend diesel fuel with gasoline or kerosene.
The fuel system and engine will otherwise
be damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
To prevent malfunctions, diesel fuel with
improved cold flow characteristics is offered
in the winter months. Check with your fuel
retailer.
Check regularly and before a long trip
For information on quantities and
requirements of operating agents, see “Fuels,
coolants, lubricants, etc.” (
Y page 411).
Check the following:
R Engine oil level ( Y page 241)
R Tire inflation pressure ( Y page 253)
R Coolant level ( Y page 243)
R Vehicle lighting ( Y page 355)
R Washer system and headlamp cleaning
system (
Y page 244)
R Brake fluid
Engine compartment
Hood
G Warning!
Do not pull the release lever while the
vehicle is in motion. Otherwise the hood
could be forced open by passing air flow.
This could cause the hood to come loose
and injure you and/or others.
Opening
G Warning!
If you see flames or smoke coming from the
engine compartment, or if the coolant
temperature display indicates that the
engine is overheated, do not open the hood.
Move away from vehicle and do not open
the hood until the engine has cooled. If
necessary, call the fire department.
G Warning!
You could be injured when the hood is open
– even when the engine is turned off.
Parts of the engine can become very hot.
To prevent burns, let the engine cool off
completely before touching any
Operation
Z