Mercedes-Benz C320 W2033.2 litre · 160 kW

May 2000 – Feb 2007 · Sedan · Petrol · 203.064

Oil, coolant and a checklist for your next service.

Silver Mercedes-Benz C-Class W203 sedan, generated side-profile illustration

Oil & coolant

Engine oil capacity

8 L

  • Oil change with filter

Coolant capacity

10.5 L

  • Total system capacity

Engine oil specification

Not available for this version

Coolant specification

MB 325.6 or MB 326.6

  • MB 325.6: concentrate, dilute before use
  • MB 326.6: premixed, do not add water

Do not mix different coolant types. Let the cooling system cool before opening the reservoir. Check the level after filling. The capacity shown is not a top-up amount.

Engine & gearbox

Engine code

M 112.946

  • 3,199 cc · 6 cylinders · 18 valves
  • Naturally aspirated · intake manifold injection/ carburettor
  • Bore × stroke 89.9 × 84 mm
  • Compression 10:1

Drive

Rear-wheel drive

Automatic gearbox fluid

MB 236.14

  • 5G-TRONIC (722.6)

Rear axle oil

1.1 L

Brake fluid

DOT 4

The gearbox figure is the quantity listed for the gearbox. A fluid change usually takes less, so fill to the correct level rather than to the figure.

When to service & replace parts

Replacement intervals

Part or fluidWhen to replace it
Brake fluidEvery 2 years

Service checklist

A service checklist is not available for this version.

Wiper blade sizes & fittings

Right-hand drive

Check your vehicle’s build month and arm fitting against the rows below.

Build dateBlade sizesAttachment / clipMatching blades
Jan 2004 - Feb 2007Driver 550 mm / passenger 550 mmVATL1.1 (arm code 4)Wiper blade slightly shorter than original partBosch A016S

For right-hand-drive vehicles. Match the build month, existing arm connector and any fitting conditions before ordering.

Find wiper blades

Brake discs

AxleDisc sizeTypeMinimum thicknessApplies to
Front 299.8 × 28 mm Vented 25.4 mm All versions
Front 300 × 28 mm Vented 25.4 mm Without sports package
Front 330 × 28 mm Vented 26 mm With sports package
Rear 290 × 10 mm Solid 8.3 mm All versions

Size is diameter × thickness. Replace a disc before it wears to its minimum thickness, which is also marked on the disc itself. Where two sizes are listed for one axle, the car's equipment decides which it has: measure the disc to be sure.

Wheels & tyres

Stud pattern

5 × 112

  • Number of bolts × circle diameter (mm)

Wheel bolts

M12 × 1.5

  • 17 mm hex head

Bulbs

LightBulbApplies to
Headlight (low beam)H7 · 55 WHalogen
Headlight (low beam)D2S xenon · 35 WBi-Xenon
Headlight (low beam)D2R xenon · 35 WXenon
High beamH7 · 55 WDual Headlight
Front fog lightH7 · 55 W—
Front fog lightHB3 · 60 WXenon
Indicator, frontPY21W · 21 W—
Daytime running lightH7 · 55 W—
Parking / position lightW5W · 5 W—
Brake lightP21W · 21 W—
Reverse lightP21W · 21 W—
Rear fog lightP21/4W · 4 W—
Rear fog / tail lightP21/4W · 21 W—
Number plate lightC5W · 5 W—
Clearance lightW5W · 5 W—

Check the bulb you take out before buying a new one. Halogen, xenon and LED headlights use different bulbs, and LED lights usually have no bulb to replace.

Battery

Case size (L × W × H)CapacityCold crankingShare of listings
278 × 175 × 190 mm 74 Ah 680 A (EN) 56%
353 × 175 × 190 mm 100 Ah 850 A (EN) 18%

The main battery sizes listed for this car, most common first. The right one depends on the car's equipment, such as start-stop, so match the size, capacity and type printed on the battery you are replacing.

Spark plugs

Number

12

Thread

M14 × 1.25

Engine, gearbox, brake, wheel, tyre, bulb, battery and plug details come from the TecDoc parts catalogue for this exact vehicle (TecDoc vehicle 14817). Where suppliers' listings disagree, only the clear majority is shown.

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