14 E250 CEL on, then off - DPF code
- CEL comes on. Using a genuine and current MB code scanner, determined that the DPF needs a regen. Do a force regen drive, CEL resets. All is well.
- CEL comes on again about 700-ish miles later. Using the same MB code scanner, same code. This time, we run through the menus, test a few things and the CEL resets.
- CEL comes on again after another 700-ish miles - same code, leave it as-is so the dealer can start the process. Make an appointment with the dealer, still under warranty.
- Have to drive for about a week (750 miles) before I can get to the dealer, get a tank of gas, then CEL goes off.
Still under the 8/80 emissions warranty. Anybody have anything similar?
The car is 5 years old, only accumulating 51,000 miles. I will be rolling 30,000 per year, 95% highway miles. Suspect the first few years would have been hard on the DPF/cat, just need to get through this episode...
Last edited by EDiesel; Feb 1, 2019 at 04:04 PM.




So my advise would be
1. buy ScanGauge and download X gauges for DPF regeneration and soot control.
2 drive observing soot % going up
3. when you notice soot at 100% and regeneration kicking in- turn off ECO and drive around till count comes to 0
In my case DPF was not clog, but the inserts moved and I concluded the error was due too low differential pressure. Scanner did not tell me the detail after displaying the code.
And if you really have the warranty, YELL for new DPF.
When/if the CEL comes back on, we'll put it on the scanner again. (using a real, current MB scanner for this) If its the same code, then it will go to the dealer immediately.




Since I understand that you already log the problem with the dealer, going there with pending code should give you new DPF.
Get a scanner !!!
Covered under the emissions warranty at 53,000 miles.
Last edited by EDiesel; Jan 23, 2019 at 07:18 PM.
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CEL came on as I was leaving the dealer.
U-turn... new code for a dpf pressure sensor.
Another 20 minutes pass and now it’s getting a new dpf under warranty at 54,000 miles.
And this time I got a bigger loaner. The gla was way too small.




I placed order for DPF for 2014 E250 and the part turn out obsolete.
7 months after dealer took my money, the part never left Germany.
Let's see what is going to happen here.




I have records for my black car and it shows DPF replacement at 120k miles.
Yet 60k miles later the DPF if kaput and the part number on it does'r match the part number master inquiry shows.
so keep all the records in perfect order if if you don't want future problems




Haven't hear about anybody in USA re-manufacturing them and then so called re-manufactured show 185% clog. I stand the whole case is very fishy and they hosed warranty for 4 grands.
Did you get copy of remanufacturer warranty?




I have master inquiry for one, showing new DPF installed with the same number you have on your receipt, yet the DPF on the car has old number.
I think PO of my car was hosed and the same feeling here.
You have the repair covered by warranty, so you might not worry about it now, but in my case the "new" DPF gave ghost 60k miles later with no replacement available.
Something to keep in mind.
I'm hoping that my driving habits, 30,000 miles per year, mostly highway, will keep the DPF clear. And if it doesn't, that someone will crack the code and offer a delete kit by the time I need another DPF.
Time will tell.




I did DPF delete and it seem to work, but my state makes annual sniff tests and I can only hope It will pass.
Wasnt aware are that was out there for these. Tell me more. I suspect these engines will run forever without egr, dpf and def.
my state is sniffer free.




