283 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 141 
and 321.
Recommended engine oils, see Approved Service 
Products sheet.
Coolant
For normal replenishing, use water (potable water 
quality). For further information refer to page 322.
Tire pressure
For tire pressure, refer to tire pressure label inside the 
fuel filler flap. See page 341 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: P 21 W / 32 cp,
license plate lamps: 5 W / 4 cp
OM_203.book  Seite 283  Donnerstag, 31. Mai 2001  11:57 11 
318 Engine compartment
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Hood
Wa r n i n g !
To help prevent personal injury, stay clear of 
moving parts when the hood is open and the engine 
is running. Be sure the hood is properly closed 
before driving. When closing hood, use extreme 
caution not to catch hands or fingers.The radiator fan may continue to run for 
approximately 30 seconds or even restart after the 
engine has been turned off. Stay clear from fan 
blades.If you see flames or smoke coming from the engine 
compartment, or if the coolant temperature gauge 
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 a fire department.
The engine is equipped with a transistorized 
ignition system. Because of the high voltage it is 
dangerous to touch any components (ignition coils, 
spark plug sockets, diagnostic socket) of the 
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned 
manually.
OM_203.book  Seite 318  Donnerstag, 31. Mai 2001  11:57 11 
379 Technical data
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index Electrical system
We i g h t s Model C 240 (203.061)C 320 (203.064)C 32 AMG (203.065)
Generator (alternator) 14 V/120 A 14 V/120 A 14 V/120 A
Starter motor 12V/1.7 kW 12V/1.7 kW 12V/1.7 kW
B a t t e r y 12 V / 10 0   A h 12 V / 10 0   A h 12 V / 74   A h
Spark plugs
Electrode gap
Tightening torqueBosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
NGK IFR 5 D 10
0.039 in (1.0 mm)
15–22ft.lb (20–30Nm)Bosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
NGK IFR 5 D 10
0.039 in (1.0 mm)
15–22ft.lb (20–30Nm)NGK IFR 6 D 10
0.039 in (1.0 mm)
15–22ft.lb (20–30Nm)
Roof load max. 220 lb (100 kg)
Trunk load max. 220 lb (100 kg)
OM_203.book  Seite 379  Donnerstag, 31. Mai 2001  11:57 11