Mercedes | DPF clean | OM651 220,250CDI W204

How to clean out a diesel particulate filter (DPF) on a Mercedes C250 CDI

[audepropertysales]

A good video but I HATE the too loud and intrusive music. It does not need it. A well explained video.

[flyerh]

The carbon is only 20 % of the problem the other 80% is the ash that you can't see inside.Yes you will get a result but it will only last until you put back that 20% carbon because the chemical you bought only dissolves carbon not ash.To dissolve the real problem the ash, you need 25% hcl to 75% water, stop off the narrow pipe and keep filling and emptying the dpf every 30 minutes.The colour of the water when flushing will be dark pink (ash) .Flush out until clear. Now you have cleaned the main problem.

[Kaktus]

In Germany we go on the Autobahn and drive full speed for 200 km/h to start the regenerationprocess. The DPF gets so hot, that the soot burns away. In this process no harmfull gasses occur. It's the natural Freibrennen how it is engineered to work.

[dllopez]

Had the same problem, did exactly as you but notice it's hard to get all the areas with the pressure washer, ended cleaning with the flash cleaner £200 but it came like new. It's also highly recommend to change the DPF pressure sensor as it's a common fault.

Anyway, excellent video as usual

[WEEChannel-inwi]

Had one of these 204s with DPF issue. Dealer said it needed a new one! Friend took it to me and I put it on Star. There is a way of forcing DPF regeneration in the car which requires Star and driving the car to a certain temp + over a certain speed for 20 mins or something like that can recall details just now.

It worked - Car regenerated it's DPF same day on a test drive and didnt bat an eyelid after.

[SWMP]

I think it is time to make the DPF structure easier to clean. It is not eco-friendly to use special equipment and solvents forever. The manufacturers should change the DPF structure so that it is as easy as replacing the engine air cleaner.

[saschastalberg]

Such problems only occur when driving short distances. My Mercedes regenerates its DPF after exactly 1000 km and everything is fine. The vehicle now has almost 300, 000 km with the first DPF and I know people who are still traveling over 800, 000 km with the first DPF. The problem is the people who buy the wrong car. Diesel is for people who drive long distances.

Active DPf regeneration can only begin after 10 km. Then another 20-30 km are necessary to complete the regeneration. if someone constantly drives less than 10 km, they
definitely have the wrong car. The DPF is full again after a few weeks.

[pocketrocket]

I mainly drive my C250 short distances, but I also give it a right good stick wherever possible.

[REALHelloKitty]

Your mileage doesn't match between both diagnostic screens (0:46 & 5:55). It seems that you have a 2nd car where you want to show us the "cleaned" DPF.
On the other hand, ash content is very important it shows how much ash remains in the DPF after all the regenerations.
In this case a forced regeneration would also "clean" the filter.

[soaringspirit]

Very nice solution! In Russia many people prefer to cut off all DPF, EGR, catalytic neutralizers and other ecological systems even on new and not cheap cars just not to service it. You can easily see for example X5 M40D accelerating with big black smoke behind it.

[wick]

I wonder where that dirty water goes.. Well here they have „eco” filters

[zhrk]

The filter should be properly dried properly before starting the engine, otherwise it may crack.

[rlefjuk]

Hi, you should wash it backwards to really get it clean! You dont want to push the soot and ash deeper into the pores of the material but to take them off and out. As you see on the video, most of the flow is up from where you are trying to push water in.

[xmas]

Why not cap one end of the DPF and fill it with the cleaner? Just makes sense. Great video!

[Greece]

2 easy steps to keep ur dpf clean....
Step 1: Remove ur dpf
Step 2: Use straight pipe
Thats all!!!

[TheMerlin]

Wynns off-car dpf cleaner is the dogs danglies. If that solution doesn't clean out the dpf, then it probably cannot be saved. Mercman uses the same method that most garages use when confronted with this problem and most of the time, but not all of the time, this product does the job.

[MrSkyliner]

I think you'd get the job done quicker if you spray the rear face so all the soot comes out of the channels it went in

[rockfordwoods]

You cannot leave any cleaner in the DPF when you reinstall it. Otherwise you will blow it into the NOX catalyst and destroy that.

[a.chandler]

Perfectly explained, I'm gonna do this now, thank you for uploading this video 👍

[emilmiraliyev]

you must clean the dpf from outgoing pipe