Page 421 of 474
420 Technical dataRims and TiresSame size tiresModel
C 230 Kompressor (standard in Canada; Canada only)
Rims (light alloy)
7Jx16H2
Wheel offset
1.22 in  (31  mm)
Summer tires (radial-ply tires)
-
All season tires (radial-ply tires)
205/55 R16 91H M+S
Winter tires (radial-ply tires)
205/55 R16 91H M+S 
         
        
        
     
        
        Page 422 of 474
421 Technical data
Rims and Tires
Mixed size tiresModel
C230 Kompressor (standard in USA; optional in Canada)
Evolution Package
C320
Evolution Package
Front axle:Rims (light alloy)
71/2Jx17
Wheel offset
1.46 in (37 mm)
Summer tires (radial-ply tires)
225/45 R17 91W
Rear axle:Rims (light alloy)
81/2Jx17 H2
Wheel offset
1.34 in (34 mm)
Summer tires (radial-ply tires)
245/40 R17 91W
1
1Must not be used with snow chains. 
         
        
        
     
        
        Page 427 of 474
426 Technical dataFuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective 
lubricants must match. Therefore use only 
brands tested and approved by 
Mercedes-Benz. Please refer to the Factory Approved Service Products 
pamphlet, or inquire at your authorized 
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
C230Kompressor
C320
5.8 US qt (5.5 l)
7.9 US qt (7.5 l)
approved engine oils
Automatic transmission
8.5 US qt (8.0 l)
MB Automatic Transmission Fluid
Manual transmission
1.3 US qt (1.2 l)
MB Manual Transmission Oil
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 (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1 oz (60 g) each
High temperature roller bearing grease
Cooling system
C230Kompressor
C320
approx. 5.9 US qt (5.6 l)
approx. 6.8 US qt (6.4 l)
MB 325.0 Anticorrosion/Antifreeze Agent 
         
        
        
     
        
        Page 428 of 474
427 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Fuel tank
including a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91 (Avg. of 96 RON / 86 MON)
Flexible Fuel Vehicles (identified by a label reading 
Premium gasoline or E85 only! on fuel filler flap):
Alternative fuel: Ethanol fuel (E85)
Air conditioning system
R-134a refrigerant and special PAG lubricant oil 
(never R-12)
Windshield washer
3.2 US qt (3.0 l)
MB Windshield Washer Concentrate
1
Windshield washer and 
headlamp cleaning system*
6.4 US qt (6.0 l)
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing point or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 435). 
         
        
        
     
        
        Page 429 of 474

428 Technical dataFuels, coolants, lubricants, etc.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 re-
quired for vehicles with Maintenance 
System (U.S. vehicles) or FSS (Canada 
vehicles). For a listing of approved engine 
oils and oil filters, refer to the Factory 
Approved Service Products pamphlet, or 
contact an authorized Mercedes-Benz 
Center.
Using engine oils and oil filters of specifica-
tion other than those expressly required 
for the Maintenance System (U.S. 
vehicles) or FSS (Canada vehicles), or 
changing of oil and oil filter at change inter-
vals longer than those called for by the 
Maintenance System (U.S. vehicles) or 
FSS (Canada vehicles) will result in engine 
damage not covered by the 
Mercedes-Benz Limited WarrantyPlease follow Maintenance System (U.S. 
vehicles) or FSS (Canada vehicles) recom-
mendations for scheduled oil changes. 
Failure to do so will result in engine dam-
age not covered by the Mercedes-Benz 
Limited Warranty.
Engine oil additives
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.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG 
lubricating oil is used in the air condition-
ing system.
Never use R-12 (CFC) or mineral-based 
lubricating oil. Otherwise damage to the 
system will occur.
Brake fluid
During vehicle operation, the boiling point 
of the brake fluid is continuously reduced 
through the absorption of moisture from 
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture 
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the 
spring.
Only brake fluid approved by 
Mercedes-Benz is recommended. An 
authorized Mercedes-Benz Center will 
provide you with additional information. 
         
        
        
     
        
        Page 430 of 474

429 Technical data
Fuels, coolants, lubricants, etc.
Premium unleaded gasoline
Fuel requirements
Use only premium unleaded fuel 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 must not 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.
!To maintain the engine’s durability and 
performance, premium unleaded gaso-
line must be used. If premium unleaded 
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.
iFlexible Fuel Vehicles (identified by a 
label reading Premium gasoline or 
E85 only! on fuel filler flap) are de-
signed to operate on premium unlead-
ed gasoline or Ethanol fuel (E85), or any 
mixture of these two.
For more information, see “Flexible 
Fuel Vehicles” (
page 431). 
         
        
        
     
        
        Page 431 of 474

430 Technical dataFuels, coolants, lubricants, 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 
engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power lossIn areas where carbon deposits may be 
encountered due to lack of availability of 
gasolines which contain these additives, 
Mercedes-Benz recommends the use of 
additives approved by us for use on 
Mercedes-Benz vehicles. Refer to Factory 
Approved Service Products Pamphlet for a 
listing of approved product(s). Follow 
directions on product label.Do not blend any specific fuel additives 
with fuel. This only results in unnecessary 
cost and may be harmful to engine opera-
tion.
Damage or malfunction resulting from 
poor fuel quality or from blending addition-
al fuel additives other than those tested 
and approved by us for use on 
Mercedes-Benz vehicles listed in the 
Factory Approved Service Products 
pamphlet are not covered by the 
Mercedes-Benz Limited Warranty. 
         
        
        
     
        
        Page 432 of 474

431 Technical data
Fuels, coolants, lubricants, etc.
Flexible Fuel Vehicles
Flexible Fuel Vehicles are identified by a 
label reading Premium gasoline or E85 
only! on fuel filler flap).
These vehicles are designed to operate on 
premium unleaded gasoline or Ethanol fuel 
(E85), or on any mixture of these two.
Ethanol fuel (E85) is a mixture of approxi-
mately 85% Ethanol and 15% unleaded 
gasoline.Switching fuels
For best performance and driveability it is 
recommended to use either one or the oth-
er fuel. A refueling pattern that alternates 
between the two different fuels should be 
avoided if possible.
When switching fuels, make sure:
Fuel level is below half full.
Fuel level is above reserve (reserve 
warning lamp is not lit).
Amount of added fuel is more than 
5 gallons (20 liters).
Ignition is off during refill.
Immediately after refueling engine is 
started and operated for at least five 
minutes.
These precautions and recommendations 
are supposed to prevent any difficulties 
when starting and operating the engine 
which otherwise may be experienced 
before the engine has fully adapted to the 
different fuel.If in spite of these recommendations the 
engine does not perform properly, adding 
more gasoline (at least 3 gallons 
[12 liters]) to the fuel may improve the 
engine behavior.
Cold weather performance
It is possible that starting times will signif-
icantly increase at temperatures below 
32°F (0°C). At low temperatures the use 
of a block heater is recommended (see an 
authorized Mercedes-Benz Center for 
further information). Rough idling may also 
be experienced at such temperatures 
before the engine is fully warmed up.
Warning!
G
Ethanol fuel (E85) and its fumes are highly 
flammable, poisonous and burn easily. Etha-
nol fuel can cause serious injuries if ignited 
or if you come into contact with it or inhale 
fumes of it. Avoid inhalation of Ethanol 
fumes and skin contact with Ethanol. Extin-
guish all open flames before fueling. Never 
smoke or create sparks close to Ethanol.
!E85 fuel is unsuitable for use when am-
bient temperatures fall below 14°F 
(-10°C).