How to change the oil on a W203 C200 Mercedes-Benz C-Class.

Difficulty Rating


Tools/Parts Required

  • Socket Set
  • Trolley Jack and Axle Stands
  • Oil Pan
  • Replacement Oil Filter
  • 5w-40 Oil (5.5L)
  • Sump Plug + Washer

Step 1

Remove the splash shield located under the engine. This is secured with six bolts as circled.

C200 Splash Shield

Step 2

Raise the vehicle and place it onto axle stands. The jacking point is located towards the front of the engine.

W203 Engine Oil Change

Step 3

You will also need to remove the rearwards splash shield which covers the second half of the engine, as well as the transmission. Bolts are located as per the picture.

W203 Engine Oil Change

Step 4

Now we need to drain the oil. Using a socket set or breaker bar, gently loosen the sump bolt.

W203 Engine Oil Change

Step 5

Prepare your oil pan and loosen off the sump bolt by hand.

The oil will now drain into the pan. Once the dripping has stopped re-install the new sump plug and washer. You can re-use the existing bolt and washer however this is not recommended as leaks can occur.

W203 Engine Oil Change

Step 6

Locate the oil filter in the engine bay. It is a cartridge style filter inside a plastic canister.

W203 Engine Oil Change

Step 7

Using a large socket, unscrew the oil filter cap.

W203 Engine Oil Change

Step 8

Once loosened, pull upwards and remove the cartridge filter from the vehicle.

W203 Engine Oil Change

Step 9

Pull gently on the cartridge to remove it from the canister lid. There are three seperate o-rings that we now need to change. These are highlighted in the image.

W203 Engine Oil Change

Step 10

Remove the first o-ring and replace.

W203 Engine Oil Change

Step 11

Remove the second o-ring and replace.

W203 Engine Oil Change

Step 12

Remove the third o-ring and replace.

W203 Engine Oil Change

Step 13

With all three o-rings replaced, slide the new filter onto the canister lid as pictured.

W203 Engine Oil Change

Step 14

Replace the canister and gently tighten. As the entire unit is made from plastic be very careful not to over-tighten the filter.

W203 Engine Oil Change

Step 15

Now fill the vehicle with 5.5L of oil. For the Australian climate we chose to use fully synthetic 5w-40.

W203 Oil Change

Step 16

Before starting the engine we need to check the oil level. See our guide on accessing the Engineering Menu.

Once the level is at roughly 5.5L start the engine and monitor for leaks. Turn the engine off and re-install both splash shields. The oil level will drop after you have started the engine.

C-Class W203 Engineering Menu

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This Post Has 20 Comments

  1. and which Type of Oil and Oil Filter you recommend for the replacement?

    1. 5w-40 Oil and 5.5L. Most oil filters will be fine for the job, I believe MANN is a popular choice in Europe.

  2. Borrowed my dad W203 C200 kompressor, engine sine appeared on dash & he thought it’s oil. He topped oil, but now giving a notice “engine oil too high, reduce oil”
    How long may i go before i manage to engage an exprert (or DIY), & what are the dangers of excessive engine oil.
    Also need to know about the engine sign on dash. Thank yo

    1. Hello, the engine light could be anything, you will need to see a mechanic who can diagnose the issue. The excess oil also needs to be drained as soon as possible, as this can damage your engine.

  3. Hello I want to change the engine oil in a c200 Kompressor W203 with 185 000 klms .I live in Australia so which oil do you recommend I use the 5W 40 or 10w 40

    1. Hi Nick, your owners manual should specify oil types based on climate temperature, please check this. Australia has wildly different temperatures across the states!

      1. Hi AutoInstruct! I much appreciate ur answers! However I have a 2004, c200 kompressor w203 manufactured in Japan. and at my place weather is btn +20°c and +30°c. Does 5W40 Extreme engine oil ok?! Km are around 70,000. Many thx

        1. Hello, that sounds fine!

  4. I poured 6 liters and board computer picked up 5.9l, is it OK for my engine?

    1. Hello, Yes this is normal. The reading is never 100% accurate. You only need 5.5L however.

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