DPF light on HELP PLEASE!!!

Buxton2901

Buxton2901

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Hi Guys,

So my DPF light came on yesterday and after a look in the owner manual which advises to drive for 15mins at 3000rpm, which I did and the light went out but started the car this morning and after letting it warm up the light is back on.
The car is driving lumpy also and feels likes is hesitant off the mark.

any ideas?
thanks
Paul
 
I would get it checked for soot levels with vcds & if need be do a regen with vcds, usually 30 mins to an hour for heavily sooted dpf's.
 
As NHN says, but you aren't having a lot of luck with the new motor are you :/
 
SI-W85 said:
As NHN says, but you aren't having a lot of luck with the new motor are you :/
Click to expand...

:(:dejection:

I know, don't remind me.

will the vcds regen completely clean the dpf then? can u take then out and clean?
and whats the likely hood of the pressure sensor being ducked?
 
Maybe the DPF is has come to end of its life which is pretty common after 100k, it should regen with out throwing a light unless you are only running small commutes in which case it will never heat up enough to regen efficiently and get clogged completely over time to the point it cant regen fully.
They are expensive to replace but I have heard some companies will refurb them with a chemical clean if it is caused by short commutes which is allot cheaper than a replacement, but I have not got any personal experience on these services so would need a little research.

Might be worth considering a DPF delete and coding it out , get a little performance and money saving out of a delete at least ;) just have to know your MOT tester or have it punched out for visual affect. I know I would go for a delete especially if it only does short commutes, but depends what you prefer with the MOT regs.
 
Manda said:
Maybe the DPF is has come to end of its life which is pretty common after 100k, it should regen with out throwing a light unless you are only running small commutes in which case it will never heat up enough to regen efficiently and get clogged completely over time to the point it cant regen fully.
They are expensive to replace but I have heard some companies will refurb them with a chemical clean if it is caused by short commutes which is allot cheaper than a replacement, but I have not got any personal experience on these services so would need a little research.

Might be worth considering a DPF delete and coding it out , get a little performance and money saving out of a delete at least ;) just have to know your MOT tester or have it punched out for visual affect. I know I would go for a delete especially if it only does short commutes, but depends what you prefer with the MOT regs.
Click to expand...


how easy are they too remove or to gut it out?
it will only be doing short journeys so probably for the best
easy to code out?
 
PB2.7TDI said:
how easy are they too remove or to gut it out?
it will only be doing short journeys so probably for the best
easy to code out?
Click to expand...

You will have to get it done by a company as I wouldnt advise doing it yourself, yours might be different but in my 2.0tdi 170 the engine is bizarely mounted sideways compared to the 170's in other VAGS, so the gear box has to be dropped to get the DPF out. It will be the same gear box drop to replace, fix or delete regardless of where you go so still cheaper to delete out by removing and coding.

What area are you in? I know a few places all over that do them, AKS tuning in Bedford, Darkside in Barnsley etc.. (broad spectrum of area :)) there are loads of places that offer DPF delete so should be able to find a local one.
A huge chunk cheaper than replacing with a new one, and you get peace of mind that it wont break again :)
 
Manda said:
You will have to get it done by a company as I wouldnt advise doing it yourself, yours might be different but in my 2.0tdi 170 the engine is bizarely mounted sideways compared to the 170's in other VAGS, so the gear box has to be dropped to get the DPF out. It will be the same gear box drop to replace, fix or delete regardless of where you go so still cheaper to delete out by removing and coding.

What area are you in? I know a few places all over that do them, AKS tuning in Bedford, Darkside in Barnsley etc.. (broad spectrum of area :)) there are loads of places that offer DPF delete so should be able to find a local one.
A huge chunk cheaper than replacing with a new one, and you get peace of mind that it wont break again :)
Click to expand...


Mine is a 2008 2.7tdi multitronic. don't fancy having to drop the gearbox to get it out :-(
anyone know where and how easy the dpf is to get at on this engine?
@desertstorm where is the dpf on the 3.0tdi? if you don't mind me asking :kiss:
 
Hi. Sorry for jumping in. On 3.0 tdi dpf is behind turbo. You will see big can in the middle at the back of the engine bay. That's a bad boy. I don't think that you need to drop a gearbox as I've seen people taking it out without dropping a gearbox on a5 3.0tdi.
 
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I was told its sub frame that needs to be dropped amongst other things either way 3 different garages have said its a full day's work :(
 
DPF is located at the back of the engine, I have taken mine off and put it back on and took me about 2 hours, would be a lot quicker in a garage as they have ramps and the like.
You can see some location pictures here.

http://www.supersprint.com/de/doc-s...d_out_which_version_of_the_downpipe_fits.aspx

As NHN stated above you need to check it on VCDS, You may have an issue with a sensor that is not allowing it to regen. You can do a forced regen with VCDS if required.
The tricky part is getting the one bolt that secures the downpipe undone. It's a right PITA to get to from under the car, the other two are got from the top. You need some long extensions and a universal joint.

karl.
 
bonifacy87 said:
Hi. Sorry for jumping in. On 3.0 tdi dpf is behind turbo. You will see big can in the middle at the back of the engine bay. That's a bad boy. I don't think that you need to drop a gearbox as I've seen people taking it out without dropping a gearbox on a5 3.0tdi.
Click to expand...
Not atall, helpful stuff.
is the 170 engine on an a4 b8 that has to be done, his is different :)
 
Ok further development guys.
Took it out again to try the Regen and now it's in limp mode. Poop. Glow plug light flashing and minimal power.
Phoning the garage in the morning and she'll be going back again. Under warranty.
Might it be the the sensor?

Just red the codes with the torque app thing and it's showing error code p2463
Which is
P2463 - GenericTypePowertrain - Auxiliary Emission Controls - ISO/SAE ControlledDescription

Diesel Particulate Filter Restriction - Soot Accumulation
 
Last edited:
In a word yes, it will need to be written out of the ecu, it's up to you wether you have it mapped for performance at the same time or not. I will be removing my dpf some time soon but my reason is to gain a bit more power so I will be having it mapped for more power and the dpf written out at the same time.
 
SI-W85 said:
In a word yes, it will need to be written out of the ecu, it's up to you wether you have it mapped for performance at the same time or not. I will be removing my dpf some time soon but my reason is to gain a bit more power so I will be having it mapped for more power and the dpf written out at the same time.
Click to expand...


What do you expect to pay for dpf delete and remap?
 
http://wiki.ross-tech.com/wiki/index.php/18895/P2463/009315

18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation
Possible Symptoms
  • Malfunction Indicator Light (MIL) ON
Possible Causes
  • Diesel Particle Filter "full"
Possible Solutions
  • Check Diesel Particle Filter
    • Perform Emergency Regeneration
Special Notes
  • Check the repair manual for any TPI/TSBs related to dealer level engine control module software updates and revised replacement parts.
Depending on the soot level the car can be made to do a forced regen, when it gets above a certain amount it won't regen at all and you need to either get the DPF cleaned out or replaced.
Or gutted and mapped out.
How many miles has the car done and what kind of driving do you do? . Looking at your posts you have only just had the car so the garage you bought it from should be sorting the issues. Sounds to me like the car has underlying problems, probably why the previous owner sold it.
To gut and remap a car anything from £400 for a cheapy upwards. To turn the DPF functionality off in the map on these is very simple. You needn't necessarily have a performance map added.
This seller in Germany has loads of used DPF's for sale

http://www.ebay.co.uk/itm/Audi-A5-8...303622685?pt=DE_Autoteile&hash=item51cb53e01d

karl.
 
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desertstorm said:
http://wiki.ross-tech.com/wiki/index.php/18895/P2463/009315

18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation
Possible Symptoms
  • Malfunction Indicator Light (MIL) ON
Possible Causes
  • Diesel Particle Filter "full"
Possible Solutions
  • Check Diesel Particle Filter
    • Perform Emergency Regeneration
Special Notes
  • Check the repair manual for any TPI/TSBs related to dealer level engine control module software updates and revised replacement parts.
Depending on the soot level the car can be made to do a forced regen, when it gets above a certain amount it won't regen at all and you need to either get the DPF cleaned out or replaced.
Or gutted and mapped out.
How many miles has the car done and what kind of driving do you do? . Looking at your posts you have only just had the car so the garage you bought it from should be sorting the issues. Sounds to me like the car has underlying problems, probably why the previous owner sold it.
To gut and remap a car anything from £400 for a cheapy upwards. To turn the DPF functionality off in the map on these is very simple. You needn't necessarily have a performance map added.
This seller in Germany has loads of used DPF's for sale

http://www.ebay.co.uk/itm/Audi-A5-8...303622685?pt=DE_Autoteile&hash=item51cb53e01d

karl.
Click to expand...

Cheers Karl, it's done 143k
It's going back to garage in the morning but they will probs just do a forced Regen.
I will price up removal and a Remap
Thanks again you your advice
 
@PB2.7TDI Price around mate try get reputable tuner

@Manda it's not a cradle out job for dpf on 2.0tdi 170hp it can be removed from above
If A/T its a turbo off job
 
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What sort of underlying problems would u think? Got me worried now
 
On 143K the DPF is probably full, and may not be recoverable. If the previous owner did a lot of town driving then that won't have helped, if he had an engine tuning box on then the same. The previous owner probably got a forced regen done to clear the the DPF for a bit. EGT sensor issues, pressure sensors etc can cause the DPF not to be regenerated correctly.
Have you had other issues with the car ??.
 
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Over time the DPF blocks up with deposits that can't be burnt off such as oil which is why low SAPS oil should be used in any car with a DPF. Also there is always a small amount of ash left when a DPF is regenerated, eventually they just block up.

Karl.
 
desertstorm said:
On 143K the DPF is probably full, and may not be recoverable. If the previous owner did a lot of town driving then that won't have helped, if he had an engine tuning box on then the same. The previous owner probably got a forced regen done to clear the the DPF for a bit. EGT sensor issues, pressure sensors etc can cause the DPF not to be regenerated correctly.
Have you had other issues with the car ??.
Click to expand...

Just esp light which was a loose wire and been fine and the alternator belt shredding itself probably through age. I expect to haunt to replace things on a car with such high mileage. That's why I'm glad I have the 6 month warranty lo
Thanks for your help
 
@Manda it's not a cradle out job for dpf on 2.0tdi 170hp it can be removed from above
If A/T its a turbo off job[/QUOTE]

Cheers for the information. The guy who will fit my turbo back exhaust with dpf delete said he needs to drop the gear box to get to the dpf to put the delete in, so just passing on the information. :)
hopefully he can have it done without the drop if thats the case
 
Well she is at the garage AGAIN, and they are going to take it off and try to clean it I think, they said they have done it on other in the past.
I think this may solve the problem temporarily, but as I mainly do town driving it will probs fill again so will deafo look into the delete.
anyone done this themselves?
 
OK UPDATE

just been onto garage and its a dodgy sensor of some sort, they waiting for replacement to arrive.
hopefully this might be the reason it was running rough.

fingers crossed all sorted by tomoz
:think:
 
A duff EGT or pressure sensor can cause it not to regen properly or at all. It will then fill up with soot and will not run correctly.
There are companies that advertise a cleaning service where they are chemically cleaned with specialised kit and they claim to be able to restore them to an as new condition. Other people just put it in a bucket of TFR and jut wash it through.

Karl.
 
ok apparently the sensor is fine and it just needs a forced regen via vagcom which the guy is doing today.
think this will solve the issue? I'm not holding my breath.
what would stop it regening anyway
 
If it was only used on short journeys around town then it may not get to regen, eventually it goes past a certain point and the car itself won't then regen the DPF and will put the light on. DPF's have a finite life and some cars suffer more than others with issues. On the 2.7 and 3.0 TDI they aren't too bad normally as DPF is very close to the turbo.
 
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