2003 MERCEDES-BENZ E320 Fuel tank

147 Controls in detail
Control system
Resetting fuel consumption statistics
Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.

Press buttonj ork repeatedly
until you see the reading that you want
to reset in the display.

Press and hold the reset knob in the in-
strument cluster (
page 22) until the
value is reset to
0.Call up range (distance to empty)

Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.

Press buttonj ork repeatedly
until you see this message in the dis-
play:
Range:
In the display you will see the calculat-
ed range based on the current fuel tank
level.
TEL menu*Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when road and traffic conditions per-
mit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every sec-
ond.

259 Operation
At the gas station
At the gas station
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the remote control or the SmartKey with
KEYLESS-GO* automatically locks/un-
locks the fuel filler flap.

Remove the key from the starter
switch.

Open the fuel filler flap by pushing at
the point indicated by the arrow.
The fuel filler flap springs open.

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

Take off the cap and set it in the recess
on the fuel filler flap.
To prevent fuel vapors from escaping
into the open air, fully insert filler noz-
zle 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 to the
right.
You will hear when the fuel cap is tight-
ened.

Close the fuel filler flap.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious inju-
ry. Whenever you are around gasoline, avoid
inhaling fumes and skin contact, extinguish
all smoking materials. Never allow sparks,
flame or smoking materials near gasoline!
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.

293 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
?
The yellow "CHECK ENGINE"
malfunction indicator lamp
comes on while driving.
There is a malfunction in:

The fuel injection system


The ignition system


The exhaust system


The fuel system
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.

Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake.
Your gas tank is empty.

After refuelling, start the engine three
or four times in succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
<
The red seat belt warning lamp
blinks for a brief period after
starting the engine.
The warning lamp reminds you to fasten seat
belts.

Fasten your seat belt.
W
The yellow fuel tank reserve
warning lamp lights up while
driving.
The fuel level has gone below the reserve
mark.
Gas cap not closed tight.

Refuel at the next gas station
(page 259).

Close gas cap

366 Technical dataFuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
brands tested and recommended by us.Please refer to the Factory Approved Ser-
vice Products Pamphlet, or inquire at your
authorized Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
E320
E500
8.5 US qt (8.0 l)
8.0 US qt (7.5 l)
Recommended engine oils
Automatic transmission
8.0 US qt (7.5 l)
MB Automatic Transmission Oil
1
1MB part no. 001 989 21 03 10Rear axle
E320
E500
1.06 US qt (1 l)
1.37 US qt (1.3 l)
Hypoid gear oil SAE 85 W 90
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
0.64 US qt (0.6 l)
MB Brake Fluid (DOT 4+)
Cooling system
E320
E500
approx. 10.7 US qt (10 l)
approx. 11.9 US qt (11.3 l)
MB 325.0 Anticorrosion / Antifreeze
Fuel tank including a reserve of
21.12 US gal (80.0 l)
2.38 US gal (9.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96
RON / 86 MON)
Air conditioner system
R-134a refrigerant and special PAG lu-
bricant oil (never R-12)

369 Technical data
Fuels, coolants, lubricants etc.
Premium unleaded gasoline
Fuel requirements
Use only premium unleaded gasoline
meeting ASTM standard D 439:

The octane number (posted at the
p um p) m us t be 91 mi n. It i s an a vera ge
of both the Research (R) Octane Num-
ber and the Motor (M) Octane Number:
(R+M) / 2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE is not to exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build-up of carbon depos-
its.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to en-
gine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking/pinging


Misfire


Power loss
Do not blend any specific fuel additives
with fuel. This only results in unnecessary
costs and may be harmful to the engine op-
eration.
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
gasoline is not available and low octane
fuel is used, follow these precautions:

Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible


Avoid full throttle driving and abrupt
acceleration


Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage


Do not exceed 2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain

387 Index
Exterior rear view mirrors
Adjusting 39
Parking position for 144
F
Fahrenheit
Setting temperature units 134
Fastening the seat belts 40
Fine adjustment
Cruise control 196
Distronic* 203
First aid kit 324
Flat tire 338
Spare wheel 338
Flexible Service System (FSS) 275, 377
Fog lamp, rear 114
Fog lamps, front 114
Messages in display 316
Replacing bulbs 332
Switching on 114
Front airbags 60
Front lamps 332
Messages in display 313
Replacing bulbs 334
Switching on 112
Front seat head restraints
Power seat 103Front seats
Heater* 107
FSS (Flexible Service System) 275, 377
Fuel 260
Premium unleaded gasoline 260
Fuel consumption statistics
After start 146
Since last reset 146
Fuel filler flap 259
Locking 259
Unlocking 259
Fuel reserve tank
Message in display 313, 323
Fuel tank
Filler flap 259
Fuels, coolants, lubricants etc. 366
Functions (control system) 125
Resetting 131
Fuse chart 353
Fuses 352
Fuse chart 353
Fuse extractor 353
Spare fuses 353G
Garage door opener 27, 243
Erasing in remote control 246
Integrated remote control 244
Rolling code programming 245
Gasoline see Fuel 260
Gear range 377
Automatic transmission 153
Limiting 153
Shifting into optimal 152
Gear range limit
Canceling 152
Gear selector lever
Position 154
Global
Locking 87
Locking with KEYLESS-GO* 91
Unlocking 87
Unlocking with KEYLESS-GO* 91
Global Positioning System (GPS) 377
Glove box 226
Closing 226
Opening 226
Good visibility 157
GPS 377
GPS see COMAND* 243

391 Index
Storing exterior mirror parking
position 111
MON 260
MON (Motor Octane Number) 378
Mph or km/h in speedometer 134
Multicontour seat* 104
Multifunction display 121, 378
Selecting language 135
Standard display 125
Multifunction display messages
ABS 296
BAS 297, 298
Batteries 303, 304
Brake pads 305
Coolant 311, 312
Coolant level 311
Distronic* 300
Doors 323
Easy-entry/exit feature 310
Engine oil level 300
Fuel reserve tank 313, 323
Hood 313
Key 313, 323
KEYLESS-GO* card 309
Lamps 313–??
Parking brake 310SBC brake system 305, 306
Seat belts 310
Steering gear oil level 318
Telephone* 309
Trunk lid 310
Washer fluid 311
Multifunction steering wheel 24, 122,
378
Buttons 122
N
Network provider 148
Night security illumination 114
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 40
Infant and child restraint systems 65
Seat belts 40, 59
Oil
Viscosity 376
One-touch gearshifting 152
Canceling gear range limit 152
Downshifting 152Upshifting 152
Opening 331
Ashtray 231
Doors from the inside 93
Glove box 226
Side windows 184
Sliding/pop-up roof* 187
Sliding/pop-up roof* with
SmartKey 188, 192
Trunk 88, 96
Trunk from the inside 94
Windows 184
Windows with SmartKey 185
Operating
Cassette player 128
CD player* 127, 128
Garage door opener 246
Integrated remote control 246
Radio 127
Safety 16
Telephone* 147
Vehicle outside the USA and
Canada 13
Operating safety 16
Operator’s Manual 10
Outside temperature indicator 120