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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #1 (Edited)
I had been considering for some time doing the next the oil change on my CLK myself - after all, how hard could it be?

First, I had to get myself some suitable ramps. Average ramps will not do. I needed ramps that can take a (front) tire width of 225mm minimum, and sustain a load of 2 tons over the pair. I also needed to get the car lifted about 8 inches for working comfortably under the car.

My engine needed 8 litres of MB approved oil. The make is immaterial provided it is to MB spec 229.5.

I also needed a MB filter, a sump plug crush washer and an MB filter wrench.

Once the front of the car was safely on the ramps and the rear wheels were wedged with chocks, I could crawl under the car and remove the front and rear splash covers under the engine. The forward panel is held by 6 studs (2 shared with the rear panel) and this has to come off first. The rear panel is held by another 4 studs, and the sump drain plug is concealed by this panel.

The removed panels are shown below.

continued....
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #2 (Edited)
oil change - continued A

I unscrewed the oil filler cap, and decided to remove the filter before draining the oil. in case I had a problem with the filter removal. However, using the special wrench the filter cap unscrewed quite easily.

Now revealed, the old filter element was quite an effort to extract from the filter canister - it need a good vertical pull as the 3 internal O rings grip very firmly.

Once the filter assembly is removed from the canister the old filter can be slid off the shaft in a downwards direction. Four new O rings are supplied with the filter, and three must be fitted in the correct grooves on the shaft and one on the cap. You can ease them off using a small screwdriver, as shown below. This is the large one fitted on the filter cap.

continued
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #3 (Edited)
continued B

With the new O rings in place, the new element can be slid up the shaft into position. I then re-installed the new filter assembly into the canister and tightened it to 25nm.

Next I removed the sump drain plug under the engine. This has to be done carefully to catch all the oil that will gush out once the plug is totally out. It is possible to almost remove the plug and allow the oil to flow slowly at first.. I had allowed the oil to mostly cool from an earlier run, as I did not want to get my fingers in hot oil.

No pictures here as I could not get the camera into position.

I used a bucket large enough to hold 8 litres to catch the old engine oil, and this took about 15 minutes to completely drain. 8 litres of oil will fill a bucket like the one shown below.

Next I fitted a new crush washer and re-installed the sump plug. I then re-fitted the 2 splash panels in the reverse order to the removal. A little grease on the screws also seemed a good idea.

I then added 7.5 litres of new oil via the oil filler hole, using a tapered funnel and rags to prevent spillage.

I removed the car from the ramps and ran the engine for 5 minutes. I then switched off and allowed the car to stand on the level for another 5 minutes. I checked the status of the oil level via the engine management system, and added the remaining oil until it reported OK. I double-checked using an MB measuring stick (no dipstick on my model) and the level was also OK.

I cleaned up, reset the service interval on the cluster, and the job was done.
 

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9 Posts
What oil do you recommend using on the 2003 Mercedes Clk 320 w209? I was hoping to use Mobil 1 5w-30 syn, but underneath the hood it states to use a different weight? Would using the Mobil damage the engine? I am new to owning a Mercedes and didn't want to make a costly mistake. Thanks
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #5 (Edited)
To the best of my knowledge - any oil that complies with MB specification 229.5

It will tell you on the can.
 

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2005 CLK 500
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30 Posts
Re: CLK Oil Change

Do yourself a favor, save yourself a whole lot of trouble and time... Purchase a filter wrench for removal of the oil filter
along with a topsider fluid suction tool at any boating supply store...

After removal of the old filter and replacement of the new filter element and o rings...

Stick the topsider plastic suction hose down the CLK oil dipstick, pump up the topsider, open the suction valve and just let the topsider vacuum the dirty oil out of your crankcase...

Once the old oil is removed, just replace with fresh 0w40 in the case of the CLK500...

Simple proceedure, takes about a half hour and you don't even have to get your hands dirty...

This is by far the easiest way to change oil on your CLK...
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #7
Simple proceedure, takes about a half hour and you don't even have to get your hands dirty...

This is by far the easiest way to change oil on your CLK...

Yea.. whatever floats your boat....

I personally quite like getting under my baby and taking a poke around.. And I don't mind if I get a little dirty either.

After all, that's what the drain plug is there for. ;)
 

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CLK 220CDi
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109 Posts
Hi Keyhole,

the pictures do not show up for me? Can anyone else see them?
Thanks for the informative post though, any chance of e-mailing the pics to me?

Russ
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #9
Hi Russ

I think that it's a problem with ImageThrust where they are hosted. They disappeared a month ago, and while I was discussing with the mods the best thing to do, they suddenly appeared again.

So let's leave it for a few days. If they are still missing, pm me and I'll email the set over to you.
 

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2005 CLK 500 Convertable
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70 Posts
How do you reset the computer for the oil change milage and also the "B" service interval milage?
charlie
 

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2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #12
Hi Charlie - welcome to the forum.

Details are in the Owners' handbook - do you have one? Also, could you complete your details showing us what model/year you have.
 

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2005 CLK 500 Convertable
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70 Posts
Hi Keyhole.. The manual says I have to return to dealer to have the service a & b reset!

I tried to find where to input my model CLK 500 convertable 2005. Could not figure out how to do it. Couldn't find a link to that information
 

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CLK 220CDi
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109 Posts
Hi Keyhole.. The manual says I have to return to dealer to have the service a & b reset!

I tried to find where to input my model CLK 500 convertable 2005. Could not figure out how to do it. Couldn't find a link to that information
Turn the key to position 1, press the mileage reset button 3 times and you should hear a beep. Use the up down buttons on the steering wheel to scroll through the menus. You should be able to reset the service indicator from there.

Russ
 

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Premium Member
2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #15 (Edited)
Hi Keyhole..

I tried to find where to input my model CLK 500 convertable 2005. Could not figure out how to do it. Couldn't find a link to that information
OK - at the top of the screen click on User CP. New screen appears.
At left of screen under Settings & Options, click Edit Profile. new screen appears.

Enter details here of vehicle & home location, etc.

Regarding reset, it may be 'slightly' different for your model/year. Read through this sticky on this topic

http://www.benzworld.org/forums/w209-new-clk-class/1349213-ot-my-dealer-continue-refused-reset-mine-fss-when-i-brought-my-car.html
 

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2005 CLK 500 Convertable
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70 Posts
OK Keyhole, I have input the registration info and printed the reset procedure. Will give it a try. Many thanks. charlie
 

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23 Posts
Hi Keyhole,
Just bought 2003 CLK500 last summer and the mileage is 45000ml, the previous owner has given me all the service recept done on this car and the service B was done at around 43000ml and last weekend the car had 48500 ml on it and I changed the engine oil and filter. When I drained the oil and measured it, the car had 8.8 qrt and the engine level show OK. Then I filled 7 qrt of new oil and the level also show OK so now what is the correct capacity of the oil, should I add oil when the level show OK? please advise.
 

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Premium Member
2004 CLK 240 Coupe
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11,367 Posts
Discussion Starter #18
Hi badinata

When you say "the level shows OK" - is that as shown on the cluster display, or using a dipstick?

I cannot explain how you drained 8.8 US quarts. My OM says your CLK 500 oil replacement quantity is 7.5 liters, or 8 US quarts.

So 7 quarts would seem a bit short.
 

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23 Posts
Hi Keyhole,
On the cluster display, I think 7 quarts is the right capacity for this CLK 500 and on the cluster display shows engine oil level OK. I have an engine oil leak at the back of the engine before I changed the oil and I assume 8.8 quarts caused this leak. I will add 1/2 quarts as per your advise.
 

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2005 CLK55 AMG CABRIOLET
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58 Posts
Do yourself a favor, save yourself a whole lot of trouble and time... Purchase a filter wrench for removal of the oil filter
along with a topsider fluid suction tool at any boating supply store...

After removal of the old filter and replacement of the new filter element and o rings...

Stick the topsider plastic suction hose down the CLK oil dipstick, pump up the topsider, open the suction valve and just let the topsider vacuum the dirty oil out of your crankcase...

Once the old oil is removed, just replace with fresh 0w40 in the case of the CLK500...

Simple proceedure, takes about a half hour and you don't even have to get your hands dirty...

This is by far the easiest way to change oil on your CLK...
i have a topsider from my old MB (SL320), now i have a CLK55 Cabriolet with no "Dipstick" so where do you suck the oil out of? Anyone have a picture or diagram?
 
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