2001 MERCEDES-BENZ C320 fuel cap

Contents
Technical dataSpare parts service ........................348
Warranty coverage .........................348
Identification labels .......................349
Layout of poly-V-belt drive ............350
Technical data ................................ 351
Fuels, coolants, lubricants etc. -
capacities ...................................355
Engine oils ......................................357Engine oil additives ...................... 357
Air conditioner refrigerant .......... 357
Brake fluid ...................................... 357
Premium unleaded gasoline ........ 358
Fuel requirements ........................ 358
Gasoline additives ......................... 359
Coolants .......................................... 359
Consumer information ................. 361
Uniform tire quality grading ....... 361
IndexIndex .................................................364

89 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Knob for instrument cluster illumination,
seepage90
Reset knob for trip odometer, see page 91 and
individual settings, see page 111
2Tachometer
3Antilock brake system (ABS) malfunction indicator
lamp, see page 272
4Brake fluid low or parking brake engaged,
seepage278
5Speedometer
6Left turn signal indicator lamp, see combination
switch on page 134
7Electronic stability program (ESP) warning lamp,
system is adjusting to road conditions, see page 273
8Indicator lamp without function. It illuminates with
the electronic key in starter switch position 2. It
should go out when the engine is running.
9CHECK ENGINE malfunction indicator lamp,
seepage268
10High beam headlamp indicator,
seeexterior lamp switch, page130, and
combination switch, see page 13411High beam headlamp indicator,
exterior lamp switch, see page 130 and
combination switch, see page 134.
12Multifunction display, see page 92
Instrument cluster display, see page 274
13Trip odometer, see page 91 and 96
14Main odometer, see page 96
15Display for program mode and gear range
indicators, page 237
16Malfunction/warning message memory,
seepage109
17Outside temperature indicator, see page 91
18Digital clock
To set the time, see individual settings on page 111
19Right turn signal indicator lamp, see combination
switch on page 134
20Fasten seat belts, see page 273
21Supplemental restraint system (SRS) malfunction
indicator lamp, see page 271
22Fuel gauge with reserve and fuel cap placement
warning lamp, see page 271

264 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
What you should know at the gas station
Fuel supplyOpen flap by pushing near front (arrow). Turn fuel cap
to the left and hold on to it until possible pressure in
tank has been released, then remove cap. Failure to
remove slowly could result in personal injury.
See page 335 for manual release of fuel filler flap.
Fuel
To prevent fuel vapors from escaping into open air, fully
insert filler nozzle unit.
Only fill fuel tank until the filler nozzle unit cuts out
– do not top up or overfill.
Leaving the engine running and the fuel cap open can
cause the “CHECK ENGINE” lamp to illuminate, see
page 268 for notes on the “CHECK ENGINE” lamp.
Wa r n i n g !
Gasoline is highly flammable and poisonous. It
burns violently and can cause serious injury.
Whenever you are around gasoline, avoid inhaling
fumes and skin contact, extinguish all smoking
materials. Never allow sparks, flame or smoking
materials near gasoline!
Wa r n i n g !
Overfilling of fuel tank may result in creating
pressure in the system which could cause a gas
discharge such as the gas spraying back out upon
removing the filler nozzle which could cause
personal injury.

265 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Fuel tank capacity approximately 16.4 US gal (62.0 l).
This includes approximately 2.1 US gal (8.0 l) reserve.
Use premium unleaded gasoline:
Posted Octane Index 91 (Average of 96 RON / 86 MON).
Engine oil
Checking oil level, see instructions on page 128
and 300.
Recommended engine oils, see Approved Service
Products sheet.
Coolant
For normal replenishing, use water (potable water
quality). For further information refer to page 301.
Tire pressure
For tire pressure, refer to tire pressure label inside the
fuel filler flap. See page 315 for further details.Spark plugs
Approved spark plugs, refer to “Technical Data”.
Air conditioner
R-134a refrigerant and special PAG lubricant, refer to
“Technical Data”.
Bulbs
High and low beams: H7 (55 W),
low beam: Xenon (optional)
fog lamps: H B4 (55 W),
turn signal lamps,
front 1156 NA (26.9 / 5 W/32/4 cp),
parking and standing lamps, front: W 5W (5 W)
side marker lamps, front: 5 W / 4 cp,
turn signal lamps, rear: PY 21 W bulb (yellow),
stop lamps: P 21 W/32 cp bulb,
rear fog lamp, driver’s side: P 21 W/32 cp bulb,
tail, parking, standing and
side marker lamp: R 5 W / 4 cp,
backup lamps: 21 W / 32 cp,
license plate lamps: 5 W / 4 cp

268 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Malfunction and indicator lamps
in the instrument cluster
General information:
If a bulb in the instrument cluster fails to light up
during the bulb self-check when turning the electronic
key in steering lock to position 2, have it checked and
replaced if necessary.
Emission control
Certain systems of the engine serve to keep the toxic
components of the exhaust gases within permissible
limits required by law.
These systems, of course, will function properly only
when maintained strictly according to factory
specifications. Any adjustments on the engine should,
therefore, be carried out only by authorized
Mercedes-Benz Center qualified technicians. Engine
adjustments should not be altered in any way. Moreover,
the specified service jobs must be carried out regularly
according to Mercedes-Benz servicing requirements.
For details refer to the Service Booklet.On-board diagnostic system
Check engine malfunction indicator lamp
Engine malfunction indicator lamp. If the
“CHECK ENGINE” malfunction indicator
lamp comes on when the engine is running,
it indicates a malfunction of the fuel management
system, emission control system, systems which impact
emissions, or the fuel cap is not closed tight (check the
fuel cap). If the “CHECK ENGINE” lamp is illuminated
continuously and the vehicle is driving normally, you
Wa r n i n g !
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon monoxide,
and inhaling it can cause unconsciousness and
lead to death. Do not run the engine in confined areas (such as a
garage) which are not properly ventilated. If you
think that exhaust gas fumes are entering the
vehicle while driving, have the cause determined
and corrected immediately. If you must drive under
these conditions, drive only with at least one
window fully open.

347 Contents - Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Technical dataSpare parts service ........................348
Warranty coverage .........................348
Identification labels .......................349
Layout of poly-V-belt drive ............350
Technical data ................................ 351
Fuels, coolants, lubricants etc. -
capacities ...................................355
Engine oils ......................................357Engine oil additives ...................... 357
Air conditioner refrigerant .......... 357
Brake fluid ...................................... 357
Premium unleaded gasoline ........ 358
Fuel requirements ........................ 358
Gasoline additives ......................... 359
Coolants .......................................... 359
Consumer information ................. 361
Uniform tire quality grading ....... 361

355 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Fuels, coolants, lubricants etc. - capacities
Vehicle components and their respective lubricants must match. Therefore use only brands tested and recommended
by us. Please refer to the Factory Approved Service Products pamphlet, or inquire at your Mercedes-Benz Center.
Capacity Fuels, coolants, lubricants etc.
Engine with oil filter 8.5 US qt (8.0 l) Recommended engine oils
Automatic transmission 8.5 US qt (8.0 l) Automatic transmission fluid
Rear axle 1.2 US qt (1.1 l) Hypoid gear oil SAE 85 W 90
Power steering approx. 1.1 US qt (1.0 l) MB Power steering fluid
Front wheel hubs approx. 2.1 oz (60 g) each High temperature roller bearing grease
Accelerator control linkage Hydraulic fluid
Brake system approx. 0.5 US qt (0.5 l) MB Brake fluid (DOT 4+)
Cooling system approx. 9.5 US qt (10.5 l) MB Anticorrosion / antifreeze
Fuel tank
including a reserve of16.4 US gal (62.0 l)
2.1 US gal (8.0 l)Premium unleaded gasoline: Posted Octane 91
(Avg. of 96 RON / 86 MON)

356 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Air conditioner system R-134a refrigerant and special PAG lubricant
(Never R-12)
Windshield washer and
headlamp cleaning systemVehicles without headlamp
cleaning system:
Capacity approx. 3.2 US qt
(3.0 l)
Vehicles with headlamp
cleaning system:
Capacity approx. 6.4 US qt
(6.0 l)MB Windshield washer concentrate1
1 Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and
commercially available premixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios, see
page 303.
Capacity Fuels, coolants, lubricants etc.