DPF issue after ad-blue delete

[danak95]

Hi Guys, This is my first post on here.

i had a issue with my ad blue twice in a row, after the first repair i promised my self i wouldn't spend another penny on the adblue system...
fast forward 4 weeks and the next issue came up, including a mileage to no restart counter...

i had a adblue delete done for this time, and it all seemed to work pretty well.. for a couple of days, 2 days later my engine management light came on and i returned to the people who done the adblue delete to check it out, they advised me it was a issue with the DPF and totally unrelated to the adblue delete,
around the same sort of time the engine management light came on i was getting a weird "tick tick" noise from the back of the engine area.

i drive approx 2000-2500 motorway miles per week, so bit confused at why the dpf was having issues.

for the next week i was just running the car in manual only mode on higher revs (as advised by the adblue delete guy) yet this didn't help...

i then took it to my local garage who had the car for 2 days, they told me the dpf was completely blocked up, and they've ran it down the motorway forcing a regen to happen, which had cleared it out, although they did say the DPF was only getting to approx 400 degrees when it should have got to the 500-600 degrees mark, and when they stopped the regen, it rapidly dropped in temp.

they also said they didn't get a lot of time to look at the ticking noise, but suspected the drive chain to be the fault given where the noise was coming from...

today i drove the car about 100-120 miles and the engine management light has returned.. totally confused on what to do!


does anybody have any advice here on what could be happening? seems a bit scary to know the ad-blue, dpf, and timing chain had all gone within a matter of weeks of each other, seems to strange to all be unrelated..

i was planning on getting a oil change within the next few days (apparently the dpf puts fuel into the oil when it seems to struggle to clear dpf)

i don't know if i should still chuck approx 5k at this car fixing the dpf and timing chain, if it's totally something else thats going to cause more issues, or even the ad-blue delete thats somehow caused some issues in the system? any advice will be much appreciated!


the car is a 2016 E220 W213 with 160k motorway mileage

 

[ajlsl600]

I don't know if u did or not. But taking into account all the grey areas surrounding adblu delete , DPF delete ect. I would only go somewhere where I can get evidence, good reliable reviews for any of this. I wud prefer my adblu to work as designed but if mine fails as it did for the previous owner at over a 1k cost I will be deleting mine as well.
Bearing in mind, one is not supposed to be at delete, I am fairly sure there will be a number of undesirables at this kind of thing and hence little or no come back for any issues a "bad" delete brings on.
All avoidable if maker s would produce the kit at a price level and with individual pts that make the efforts of deleting a waste of effort, money, time.
Unfortunately I don't see makers backing away from this kind of tethered cash cow any time soon.

 

[LostKiwi]

My views on tampering with emissions controls are well known .

I suspect you've done the delete as a result of poor diagnosis of an underlying issue that's also caused the DPF to fill, most likely a split boost hose generating excess soot, a bad thermostat not allowing the engine to reach proper operating temperature or a sensor giving bad readings. All too often the adblue and DPF systems cop the blame when it's not them at all.

 

[brandwooddixon]

Did any of the garages put your car on a STAR system to read the fault codes first?
I gather that some readers can give misleading information or none at all.

 

[M80]

During regen you should expect temps above 580. I see 700 hundred easily enough and that's with easy driving.

The car didn't regen at 400, it isn't high enough.

From an y high temp situation the temp will drop rapidly as load is reduced. The higher the temp, the faster it will fall.
The difference between hi exhaust temp and the ambient temp is massive, it wants to equalise.

I hope your ad blue delete hasn't caused other issues, but 1st I would look to see what is preventing the regen.
What is the % fill?
How much fuel is in the tank?
What is the engine coolant temp?

Then you start to look at sensor readings, via Star is favourable

 

[mersum1es]

Bad, crappy adblue delete does that. You selected wrong programmer.

WARNING FOR ALL NEW MERCEDES CARS WITH (Wanted) ADBLUE OFF (by tuning file)

1

mhhauto.com

 

[alexanderfoti]

Poor adblue delete solutions cause DPF regens to stop working, as the two systems are intrinsically linked. If the adblue system is reporting a problem, DPF Regens are stopped. It requires a better software modification as above.

 

[mioba]

Go back to the drawing board and get the original probs fixed properly. Circumvention is ignoring the issue at hand. If you have a leaking roof and it damages paintwork inside, do you just repaint. Just my view on maintenance.

 

[Gazwould]

Quality.....

 

[Botus]

no one mentioned the timing chain - nothing at all to do with dodgy emission fiddles, lots to do with they wear out and this is high miles....

why on earth would people drop ad blu its trying to save our lives... its cost is almost nothing - due to the corrupt and incompetent government, many in these death machines are getting away with a 1k road tax deduction anyway, so 5 quid for 7k miles is hardly the end of the world - but it will be if you turn it off !!!

 

[mioba]

View attachment 75699


Quality.....

Ha Ha. Where did you get that

 

[Blobcat]

Ha Ha. Where did you get that

It’s copied from another forum

 

[mioba]

Its pretty spot on tbf!

 

[mioba]

btw any garage doing an adblue delete lack professional integrity of the highest magnitude.

 

[mioba]

Did any of the garages put your car on a STAR system to read the fault codes first?
I gather that some readers can give misleading information or none at all.

Based on what the garage has told the OP and what they have done, i doubt it. Sound like cowboys!

 

[Gazwould]

Ha Ha. Where did you get that

#6

 

[ajlsl600]

If the motive was to save the planet environmental parts would be reasonably priced and not just extortionate priced whole assly, s. Its purely because we are a captive market that the parts are not individual or reasonably priced. Get the environmentalists to force a 10 Yr warranty on all such kit and see the change in failure rates of these parts and how soon, when makers pay, that individual pts become available and more reliable.
I am not a fan of delete, but if it happens a 2nd time I won't be going to get bent over at benz. Or any other maker. I will find someone who can to a proper job of delete
On another note if makers had to properly inform buyers of these matters in legal literature , at point of purchase I suspect the "shine" of the cabin environment might dull somewhat.

 

[danak95]

Did any of the garages put your car on a STAR system to read the fault codes first?
I gather that some readers can give misleading information or none at all.

Yeah the originally AdBlue delete guy put the STAR system on, it came up with a DPF fault code (i don't know what), he advised it was a blocked dpf, likely caused from driving while the adblue system was faulty, original garage backed this up, to some sort.

no one mentioned the timing chain - nothing at all to do with dodgy emission fiddles, lots to do with they wear out and this is high miles....

why on earth would people drop ad blu its trying to save our lives... its cost is almost nothing - due to the corrupt and incompetent government, many in these death machines are getting away with a 1k road tax deduction anyway, so 5 quid for 7k miles is hardly the end of the world - but it will be if you turn it off !!!

it's not 5 quid for 7k miles. in the past 2 months i've had 2 s-classes need £800 worth of adblue repairs, and this car had £1800 repair before it broke again, the adblue system is faulty, has been on all Mercedes, will continue to be, and emissions should be fixed without causing other issues.

Poor adblue delete solutions cause DPF regens to stop working, as the two systems are intrinsically linked. If the adblue system is reporting a problem, DPF Regens are stopped. It requires a better software modification as above.

when it was plugged in to the system, they was able to force a regen, but it didn't get up to heat, i'm wondering if this could be caused by the adblue (as it did regen to some what)
or if i should just replace the dpf?
thanks for any help.

If the motive was to save the planet environmental parts would be reasonably priced and not just extortionate priced whole assly, s. Its purely because we are a captive market that the parts are not individual or reasonably priced. Get the environmentalists to force a 10 Yr warranty on all such kit and see the change in failure rates of these parts and how soon, when makers pay, that individual pts become available and more reliable.
I am not a fan of delete, but if it happens a 2nd time I won't be going to get bent over at benz. Or any other maker. I will find someone who can to a proper job of delete
On another note if makers had to properly inform buyers of these matters in legal literature , at point of purchase I suspect the "shine" of the cabin environment might dull somewhat.

i'd have to agree with this, i have spent stupid amounts of money over the years on the adblue system, there has to be a point where i say it's enough, mercedes make it almost impossible to keep up with these disgustingly overpriced parts.


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Thank you everybody for your help here.

 

[Botus]

it's not 5 quid for 7k miles. in the past 2 months i've had 2 s-classes need £800 worth of adblue repairs, and this car had £1800 repair before it broke again, the adblue system is faulty, has been on all Mercedes, will continue to be, and emissions should be fixed without causing other issues.

I meant 5 quids worth of adblu additive to drive 7k miles - 100% true about needing repairs - adblue system was never correct - the biggest issue sorting it all out so it works in the end, is the Engine ECU is full of deliberate bugs - they got found out - and wrote a good one - but half the idiots don't want it and even when you do - you need the latest DFP sensor and Mk3 Nox sensors or you can't fit the fault free map or sort the corresponding SCR update

 

[carlbcfc]

I meant 5 quids worth of adblu additive to drive 7k miles - 100% true about needing repairs - adblue system was never correct - the biggest issue sorting it all out so it works in the end, is the Engine ECU is full of deliberate bugs - they got found out - and wrote a good one - but half the idiots don't want it and even when you do - you need the latest DFP sensor and Mk3 Nox sensors or you can't fit the fault free map or sort the corresponding SCR update

Are the latest sensors only available from Mercedes?