2007 MERCEDES-BENZ GL320CDI service c

472 Practical hints
What to do if …
Display symbolDisplay messagesPossible cause/consequencePossible solution
;(USA only)
3(Canada only)
Check
brake fluid levelThere is insufficient brake fluid
in the reservoir.Risk of accident! Stop the vehicle in a
safe location or as soon at is safe to do
so.
Apply the parking brake (page 68).
Notify an authorized Mercedes-Benz
Light Truck Center. Do not add brake
fluid! This will not solve the problem.
? (USA only)
± (Canada only)
Engine
ServiceThere may be a malfunction in
the

fuel injection system

ignition system

exhaust system

fuel system
Have the engine checked by an
authorized Mercedes-Benz Light Truck
Center.
Warning!G
Driving with the message Check brake
fluid level
displayed can result in an ac-
cident. Have your brake system checked im-
mediately. Do not add brake fluid before
checking the brake system. Overfilling the
brake fluid reservoir can result in spilling
brake fluid on hot engine parts and the
brake fluid catching fire. You could be seri-
ously burned.!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.

476 Practical hints
What to do if …
When the message Add 1 qt. engine oil
at next refueling
(Canada: 1 liter)
appears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum level.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest
service station where the engine oil should
be topped to the required level with an
approved oil.
For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Light Truck
Center.
Display symbolDisplay messagesPossible cause/consequencePossible solution
NCheck eng. oil level
at next refuelingThe engine oil level is too low.Check the engine oil level (page 381).
USA only:
Add 1 qt. engine oil
at next refueling
Canada only:
Add 1 liter engine oil
at next refueling
The engine oil level is too low.Add engine oil (page 382) and check
the engine oil level (
page 381).
Engine oil level
cannot be measuredThe measuring system is
malfunctioning.Have the measuring system checked by
an authorized Mercedes-Benz Light Truck
Center.

528 Practical hints
Flat tire
Lowering the vehicle
Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.
Remove the jack.
1-5Wheel bolts
Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of
110 lb-ft (150 Nm).
Store jack and all other vehicle tool kit
items back into the storage well.
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).
iThe removed road wheel cannot be stored in
the spare wheel well under the cargo compart-
ment floor, but should be transported in the car-
go compartment wrapped in a protective cover.
Vehicles with TPMS or Advanced TPMS*:
Do not activate the tire inflation pressure moni-
tor until a full size wheel/tire with functioning
sensor has been placed back into service on the
vehicle.

547 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main Dimensions
Weights
Fuels, coolants, lubricants

548 Technical data
The “Technical data” section provides the
necessary technical data for your vehicle.
Parts service
All authorized Mercedes-Benz Light Truck
Centers maintain a stock of Genuine
Mercedes-Benz Parts required for mainte-
nance and repair work. In addition, strate-
gically located parts distribution centers
provide quick and reliable parts service.
More than 300 000 different parts for
Mercedes-Benz models are available.
Genuine Mercedes-Benz Parts are subject-
ed to stringent quality inspections. Each
part has been specifically developed, man-
ufactured or selected for and adapted to
Mercedes-Benz vehicles.
Therefore, Genuine Mercedes-Benz parts
should be installed.!The use of non-genuine Mercedes-Benz
parts and accessories not authorized by
Mercedes-Benz could damage the vehicle, which
is not covered by the Mercedes-Benz Limited
Warranty, or could compromise the vehicle’s
durability or safety.

549 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of
the warranties printed in the Service and
Warranty Information booklet. Your
authorized Mercedes-Benz Light Truck
Center will exchange or repair any defec-
tive parts originally installed on the vehicle
in accordance with the terms of the follow-
ing warranties:

New Vehicle Limited Warranty

Emission System Warranty

Emission Performance Warranty

California, Maine, Massachusetts, and
Vermont Emission Control Systems
WarrantyReplacement parts and accessories are
covered by the Mercedes-Benz Parts and
Accessories warranties, copies of which
are available at any authorized
Mercedes-Benz Light Truck Center.Loss of Service and Warranty
Information Booklet
Should you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Light Truck Center arrange
for a replacement. It will be mailed to you.

560 Technical data
Fuels, coolants, lubricants
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercerdes-Benz.
Please refer to the Factory Approved
Service Products pamphlet (USA only), or
inquire at an authorized Mercedes-Benz
Light Truck Center.
Warning!G
Comply with all valid regulations with re-
spect to handling, storing and disposing of
service fluids. Otherwise you could
endanger persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct
contact with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filterAll models9.0 US qt (8.5 l)Approved engine oils
Automatic transmissionAll models9.5 US qt (9.0 l)MB Automatic Transmission Fluid
Transfer case single speedAll models0.5 US qt (0.5 l)MB Automatic Transmission Fluid
Transfer case double speed*All models1.6 US qt (1.5 l)MB Automatic Transmission Fluid
Front axleAll models1.2 US qt (1.1 l)Hypoid gear oil
Rear axleAll models1.2 US qt (1.1 l)Hypoid gear oil
Rear axle with differential lock*All models1.7 US qt (1.6 l)Hypoid gear oil

562 Technical data
Fuels, coolants, lubricants
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System. For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet
(USA only), or contact an authorized
Mercedes-Benz Light Truck Center.Engine oil additives
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air
conditioning system.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Light Truck
Center will provide you with additional
information.
!Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System, or chang-
ing of oil and oil filter at change intervals longer
than those called for by the Maintenance System
will result in engine or emission control system
damage not covered by the Mercedes-Benz
Limited Warranty.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do
so will result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
!Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from blending
oil additives are not covered by the
Mercedes-Benz Limited Warranty.
!Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the system
will occur.
Warning!G
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere. Under extremely strenuous
operating conditions, this moisture content
can lead to the formation of bubbles in the
system, thus reducing the system’s
efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s
Maintenance Booklet for replacement inter-
val.