Mercedes-Benz C30 CDI AMG CL2033.0 litre · 170 kW

Sep 2002 – May 2008 · Coupé · Diesel · 203.718

Oil, coolant and a checklist for your next service.

Silver Mercedes-Benz C-Class CL203 coupé, generated side-profile illustration

Oil & coolant

Engine oil capacity

6.5 L

  • Oil change with filter

Coolant capacity

13 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

OM 612.990

  • 2,950 cc · 5 cylinders · 20 valves
  • Turbocharged · direct injection
  • Bore × stroke 88 × 97 mm
  • Compression 16.5:1

Drive

Rear-wheel drive

Automatic gearbox fluid

MB 236.14

  • 5G-TRONIC (722.6)

Rear axle oil

1.6 L

  • Approval MB 235.0

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

For jobs with both a time and a kilometre limit, use whichever comes first.

Replacement intervals

Part or fluidWhen to replace it
Brake fluidEvery 2 years
Fuel filterMore than 60,000 km or 4 years since last change

Service checklist

A service checklist is not available for this version.

Brake discs

AxleDisc sizeTypeMinimum thicknessApplies to
Front 345 × 30 mm Vented 28 mm All versions
Rear 290 × 10 mm Solid 8.3 mm All versions
Rear 300 × 22 mm Vented 19.4 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

Factory wheel and tyre sizes

WheelTyre sizeRimFitted to
17-inch 225/45 R17Mercedes-approved (MO) tyres listed 7.5J × 17, offset ET37 Front and rear
17-inch 205/50 R17 7.5J × 17, offset ET37 Front and rear
18-inch 225/40 R18 7.5J × 18, offset ET37 Front and rear

Sizes the parts catalogue lists for this car. A "Rear" row is the wider rear tyre on cars with different sizes front and rear. Your tyre placard, on the driver's door pillar, gives the sizes and pressures for the wheels your car was built with.

Bulbs

LightBulbApplies to
Headlight (low beam)H7 · 55 WHalogen
Headlight (low beam)D1S xenon · 35 WBi-Xenon
High beamH7 · 55 WHalogen
High beamD1S xenon · 35 WBi-Xenon
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 / tail lightP21/5W · 21 W—
Brake lightP21W · 21 W—
Reverse lightP21W · 21 W—
Rear fog / tail lightP21/4W · 21 W—
Number plate lightC5W · 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 70 Ah 760 A (EN) 62%

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.

Engine, gearbox, brake, wheel, tyre, bulb, battery and plug details are taken from the parts makers' listings for this exact vehicle. Where those listings disagree, only the clear majority is shown.

Parts for this car

22 in stock

Every part we stock that is listed to fit the C30 CDI AMG CL203 3.0 litre · 170 kW. Build date and factory options can still affect fitment, so check the fitment table on a part before you order.

Brakes2 parts
Engine & cooling3 parts
Suspension & steering1 part
Transmission & driveline3 parts
Electrical1 part
Exhaust1 part
Body & interior11 parts

Keep a record of this service

Print the specifications and checklist with your registration, VIN, mileage and the products you used.

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Your printable service record

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