orbeluser

2014 250 glk How to clean the diesel particulate filter while in the car

Plutoe

Take it to the interstate and run at 80 for and hour----then return at 80.

mstrbenztech

How do you know that it's clogged? The only way to see the soot and Ash values are with the diagnostic equipment. The system performs regenerations while you drive and burns the soot into Ash and you would never know it's doing it

larrypmyers

107123210

That is apparently the first thing to do, especially if car has been used mostly for short in-town trips.
Second recommendation is to try a fuel additive. Apparently they can help the soot burn off at a lower temperature. Never tried these, but worth Googling to get more experience:
https://www.hypermiler.co.uk/dpf-die...-actually-work

Replacement apparently very expensive.

orbeluser

I've tried the highway speed solution with limited success. The light does go off and the car goes back to a normal setting after awhile. However a day or two around town and the lights back. I am thinking about the Molly cleaning system. Getting to the NoX sensor to access the inside of the filter does not look to be an easy feat.

formerjeepguy

If you are in the US and under 80K miles then take it in and let the dealer clean or replace it. The emissions warranty is 8 years/80K miles.

My DPF clogged at 18K miles. Way too early.

107123210

I had read that some diesel owners were told that the DPF was not covered by the Federal warranty, but according to this MBUSA document page 52, it is, at least in the listed states:

https://www.mbusa.com/vcm/MB/Digital...on_booklet.pdf

I was counting on the 8 yr emissions warranty and my 7 yr extended warranty to allow us to keep our GLK for a while yet. But I could not find Mercedes Canada equivalent of MBUSA warranty document.

purebass

My DPF was replaced last year. 2014 GLK250, about 65000kms when it happened. Dealer told me its covered under the 8year emissions warranty. Located in the GTA

Plutoe

For those of you in the USA that believe in the HS additive approach, I would seriously consider what the consequences of additive use has on the factory emission warranty.

C300fan2

Can you tell me which dealer? im in the GTA as well. Cheers!

purebass

My check engine light came on, took it to MB Mississauga and they told me it was the DPF and it was covered under warranty.

orbeluser

I never seem to have luck. The filter went at 88,000 miles. So i am on my own. I bought a bottle of Lucas Diesel Deep Clean. Tomorrow I'm going on a 100 mile run mostly highway. See if anything improves. I have a sense of the technical issues involved with the dpf. However the dealer was not forthright when the vehicle was initially purchased. I understand wear items such as tires, brakes, etc. When a exhaust filter replacement adds over $1.00 per gallon to the cost of operation there is a responsibility of the manufacturer to disclose the cost. I never would have bought a diesel had i known the hidden costs especially when you can only source the part though Mercedes. I would call this whole adventure dirty pool. We've owned BMW's, (8) Porsche's (2) put on high miles with little to no issues. Mercedes has created a once and done situation. We all make bad decisions, we hate being taken advantage of...

GLK Super Fan

hey man, just do a dpf delete and call it good. you will never have to worry about emission problems

107123210

deleted

formerjeepguy

Deleting the DPF isn't an option if you need to pass emissions testing.

The DPF can be cleaned if it is removed. I understand it is fairly common on large diesels and even their smaller Mercedes sprinter kin. If I understand it correctly they pneumatically clean it then bake it for 8-10 hours, then pneumatically clean it again. If you can find an independent shop willing to remove the DPF and take it to a truck center for cleaning then it would still probably be cheaper than the parts and labor for a DPF delete. You should only be down for a few days.

GLK Super Fan

i still have my dpf in my garage. if you looking for used part, i can sell it to u. hust send me a msg.

For the years i live in Toronto. There are lots of shop that offer guarantee to pass the emission test. Give kijiji a search, you will see it.

orbeluser

I would be interested in your DPF . I didn't have any luck on kijiji.

GLK Super Fan

Private message sent. check your inbox

a64armt

AandMMag

DPF clogged at 12k I had to replace it....I had a James Bond smoke screen behind the car, and I had no button to turn it off. The MB USA dealer made me pay quiet a pretty penny to replacet it!!!

orbeluser

So, after endless help from this board and abit of leg work on my own i was able to overcome the dredded clogged DP filter. I found a small company that bakes, air blows and aqueous washes the filters for large trucking companies. I had my local mechanic remove the filter from the car. We UPS'd the unit to the people in Pittsburgh, PA for cleaning. With in one day they had the filter cleaned and heading back to me. The mechanic did the reinstall. The filter was cleaned as advertised. The last piece to the puzzle was clearing all the codes in the system. Once done my car runs like new after 1,000 miles of driving. Costs: Mechanic time $265.00. Filter repair $490.00. Shipping $60.00 for a total of $815.00 US dollars. Not cheap, but better than the $2,500.00 the Mercedes had quoted me... Thanks for everyone's help!

formerjeepguy

That's great news. I'm glad it worked out for you.

pwj77

Mine was just replaced under warrantee at 58,000 miles, after the check engine light went on (2014 E250)