2008 MERCEDES-BENZ R320 fuse box

Contents
Replacing wiper blades ...................... 489
Front wiper blades ....................... 489
Rear wiper blade .......................... 490
Flat tire .............................................. 492
Preparing the vehicle.................... 492
Mounting the spare wheel ............ 493
Bleeding the fuel system
(diesel engine only) ............................ 502
Battery ............................................... 503
Disconnecting, removing,
reinstalling and reconnecting
the battery.................................... 505
Charging the battery .................... 510
Jump starting ..................................... 511
Towing the vehicle ............................. 513
Installing towing eye bolt.............. 515
Stranded vehicle .......................... 517
Fuses ................................................. 518
Fuse box in engine compartment . 519
Fuse box in cargo compartment ... 519
Fuse box in passenger
compartment................................ 520
Emergency engine shut-down ...... 520
Technical data................................. 521
Parts service ...................................... 522
Warranty coverage............................. 523
Loss of Service and Warranty
Information Booklet ..................... 523
Identification labels ........................... 524
Layout of poly-V-belt drive ................. 526
R 320 CDI 4MATIC ....................... 526
R 350, R 350 4MATIC,
R 550 4MATIC .............................. 526
Engine................................................ 527
Rims and tires.................................... 529
Same size tires ............................. 530
Spare wheel ................................. 532
Electrical system ............................... 533
Main Dimensions ............................... 534
Weights.............................................. 535Fuels, coolants, lubricants, etc. ......... 536
Capacities .................................... 536
Engine oils ................................... 538
Engine oil additives ...................... 538
Air conditioning refrigerant .......... 538
Brake fluid.................................... 539
Premium unleaded gasoline
(gasoline engine).......................... 539
Fuel requirements ........................ 540
Gasoline additives
(gasoline engine).......................... 540
Coolants ...................................... 541
Windshield washer system and
headlamp cleaning system*......... 544
Index................................................. 545

251 Controls in detail
Power tilt/sliding sunroof*
Switch off the ignition (page 40) and
remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Switch off the ignition (page 41).
Open the driver’s door (this puts
the starter switch in position 0,
same as with the SmartKey
removed from the starter switch).
The driver’s door then can be
closed again.
Remove the fuse for the tilt/sliding
sunroof from the fuse box
(
page 518).
Reinsert the fuse in the fuse box.
Switch on the ignition (page 39).
Press and hold the sunroof switch in
direction of arrow3 (
page 249) un-
til the tilt/sliding sunroof is fully raised
at the rear.
Hold the sunroof switch in direction of
arrow3 for approximately 1 second.
Open the tilt/sliding sunroof using the
Express-open feature (
page 250).
If the tilt/sliding sunroof opens com-
pletely, it is synchronized.
If the tilt/sliding sunroof does not open
completely:
Repeat the above steps.
iFor information on which fuse box contains
the fuse for the power tilt/sliding sunroof, see
the fuse chart provided with the vehicle tool kit
(
page 469).

255 Controls in detail
Panorama roof with power tilt/sliding panel*
Fully opening (Express-open) the
panorama roof with tilt/sliding panel
Pull the roof panel switch past the
resistance point in direction of
arrow1 (
page 254) and release.
The tilt/sliding panel opens com-
pletely.
Stopping the panorama roof with
tilt/sliding panel during Express-open
Move the roof panel switch in any
direction.
The tilt/sliding panel will stop in its
current position.Synchronizing the panorama roof with
power tilt/sliding panel
The tilt/sliding panel and its roller
sunblinds must be synchronized

after the battery has been
disconnected or discharged

after a malfunction

if the tilt/sliding panel does not open
smoothly
Switch off the ignition (page 40) and
remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Switch off the ignition (page 41).
Open the driver’s door (this puts
the starter switch in position 0,
same as with the SmartKey
removed from the starter switch).
The driver’s door then can be
closed again.
Remove the fuse for the tilt/sliding
panel from the fuse box (
page 518).
!Do not attempt to open or close the
tilt/sliding panel before the tilt/sliding panel is
properly synchronized. The tilt/sliding panel
could otherwise lock-up in the open position.
If the tilt/sliding panel cannot be closed or
synchronized, contact an authorized
Mercedes-Benz Light Truck Center or call
Roadside Assistance (
page 325).
iFor information on which fuse box contains
the fuse for the power tilt/sliding panel, see the
fuse chart provided with the vehicle tool kit
(
page 469).

256 Controls in detail
Panorama roof with power tilt/sliding panel*
Reinsert the fuse in the fuse box.
Switch on the ignition (page 39).
Push and hold the roof panel switch in
direction of arrow2 (
page 254)
until the roller sunblinds are fully
closed.
Keep holding the roof panel switch in
direction of arrow2 (
page 254) for
approximately 1 second.
Pull and hold the roof panel switch in
direction of arrow1 (
page 254)
until the roller sunblinds are fully
opened.
Keep holding the roof panel switch in
direction of arrow1 (
page 254) for
approximately 1 second.
Press and hold the roof panel switch in
direction of arrow3 (
page 254)
until the tilt/sliding panel is fully raised
at the rear.
Push and hold the roof panel switch in
direction of arrow2 (
page 254)
until the tilt/sliding panel is fully
closed.
Keep holding the roof panel switch in
direction of arrow2 (
page 254) for
approximately 1 second.
Open the tilt/sliding panel using the
Express-open feature (
page 255).
If the tilt/sliding panel opens
completely, the roof is synchronized.
If the tilt/sliding sunroof does not open
completely:
Repeat the above steps.


518 Practical hints
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and
systems secured by that fuse will stop
operating.If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Light Truck
Center.
A fuse chart explains the fuse allocation
and fuse amperages. It is located in the
cargo compartment with the vehicle tool
kit (
page 469).
The electrical fuses are located in different
fuse boxes:

on the passenger side of the engine
compartment (
page 519)

in the cargo compartment
(
page 519)

in the passenger compartment
(
page 520)Before replacing fuses:
Apply the parking brake (page 65).
Make sure automatic transmission is
set to position P (
page 192).
The gear position indicator in the
multifunction display should be on
P.
Turn off all electrical consumers.
Turn off the engine (page 66).
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Open the driver’s door (this puts
the starter switch to position0,
same as with the SmartKey re-
moved from starter switch). The
driver’s door can then be closed
again.
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than
approved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied by an
authorized Mercedes-Benz Light Truck
Center
iA blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart.
Any Mercedes-Benz Light Truck Center will be
glad to advise you on this subject.

519 Practical hints
Fuses
Fuse box in engine compartment
The main fuse box is located on the pas-
senger side of the engine compartment.
Open the hood (page 356).
1Clamp
2Main fuse box cover
Release clamp1.
Lift fuse box cover2 up.
Install fuse box cover in reverse order.
Close the hood after checking or re-
placing fuses (
page 358).
Fuse box in cargo compartment
The fuse box is located under the cargo
compartment cover on the right-hand side
of the spare wheel well.
Open the tailgate (page 119).
Lift the cargo compartment cover
(
page 467).
Secure cargo compartment cover with
securing hook (
page 468).
1Cover
Fold cover1 to the left as indicated by
the arrow.
!The fuse box cover must be installed
properly to prevent moisture and/or dirt from
entering the fuse box and possibly impairing fuse
operation.

520 Practical hints
Fuses
Fuse box in passenger compartment
The fuse box is located behind a cover in
the dashboard on the passenger side.
Open the front passenger door.
1CoverOpening:
Pull cover1 in direction of arrow.
Closing:
Clip upper end of cover1 into open-
ing.
Push on lower end of cover1 until it
engages.
Emergency engine shut-down
If the engine cannot be turned off as de-
scribed in the “Getting started” section
(
page 66), do the following:
Take the fuse chart from the vehicle
tool kit (
page 467).
Open the fuse box in the engine com-
partment (
page 519).
Remove fuse 120.
Find its location in the fuse chart.
!Do not use sharp objects such as a screw-
driver to open fuse box cover 1, as this could
damage it.
iR 550 4MATIC: Remove fuse 114 to
shut-down the engine. Find its location in the
fuse chart.

552 Index
Fuel 352, 537, 539
Additives 540
Capacities, Fuel tank 537
Consumption statistics 185
Filling the tank 352
Fuel filler flap and cap 352
Fuel gauge 29
Fuel reserve warning lamp 29, 424
Premium unleaded
gasoline 352, 539, 540
Requirements, Octane rating 540
Fuel cap
Messages in the multifunction
display 452
Fuel filler flap 352
Locking/unlocking 352
Opening 352
Opening in an emergency 475
Fuels, coolants, lubricants etc. 536Fuses 518
Fuse box, Cargo compartment 519
Fuse box, Engine compartment 519
Fuse box, Passenger
compartment 520
Fuse chart 467, 518
Fuse extractor 467, 518
Replacing 518
Spare fuses 467, 518
G
Garage door opener 329
Gasoline see Fuel
GAWR 394
Gear range
Automatic transmission 199
Limiting 199
Shifting into optimal 202Gear selector lever 25, 53, 190
Gearshift pattern 53, 190
Message in the display 437
Messages in the multifunction
display 437
Position 193
Shifting procedure 193
Transmission position 194
Global locking/unlocking see
Key, SmartKey
Glove box 304
Good visibility 203
Gross Axle Weight Rating see GAWR
Gross Trailer Weight see GTW
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GTW 394
GVW 394
GVWR 394