Hi, any advise would be appreciated. Couple of weeks ago my dpf started going mental. It's regenerating continously like the picture attached. I have a crap mpg but nothing else. No fault codes. I have replaced already the glow plugs( had an error on glow no 3) and the pressure sensor aswell and while there's an improvement it's far away from what it should be. It is a superb 2016 2.0 dsg used for taxi so does a mix of city-motorway driving and has plenty time to get the regen completed.

The oil ash level is very high...

 

That's the stuff that can't be burnt off so I think the DPF is at the end of its life. You probably need a new DPF or to have a specialist remove and clean the oil ash for you.

Is that 183k miles? Sounds like new dpf time I'm afraid.

The oil ash residue will be your issue, as above you either need to replace the DPF or look to have it cleaned, although it doesn't mean it will be successful. 
My advice would be do not leave it, the DPF regen process puts a lot of stress on other components and you will just end up with an even bigger bill. 
 

Yes the ash is a by product of burning the soot  you can’t burn the ash, and looking at the pre and post temps I would expect a bigger difference, you all so say you changed the pressure sensor did you carry out an adaption after fitting ?
 As said new DPF I’m afraid  

40 minutes ago, patrolman said:

Yes the ash is a by product of burning the soot  you can’t burn the ash, and looking at the pre and post temps I would expect a bigger difference, you all so say you changed the pressure sensor did you carry out an adaption after fitting ?
 As said new DPF I’m afraid  

Thanks everyone for reply. I'm booked tomorrow for a cleaning to see if improves anything. The new sensor hasn't been adapted so i'll do that aswell. Forgot to mention that the car has problem with the oil it's burning ( 5l in 10k miles ) which i think it made the dpf blocking sooner than it should.

1 hour ago, SSuperb3 said:

Thanks everyone for reply. I'm booked tomorrow for a cleaning to see if improves anything. The new sensor hasn't been adapted so i'll do that aswell. Forgot to mention that the car has problem with the oil it's burning ( 5l in 10k miles ) which i think it made the dpf blocking sooner than it should.

That’s not going to help 

Stating the obvious, given that oil ash comes from the oil that is burned any oil consumption is bad, in 17 years and probably 400K miles of driving 1.9TDi's PD's and now a 2.0 CR TDi I have only ever once needed to top up the oil so maybe 1l in all that time and I used to really stretch the oil change intervals.

 

Burning 1l every 2K miles I would expect the DPF to become clogged very quickly, lets hope that cleaning will get rid of the gunge.

25 minutes ago, J.R. said:

Stating the obvious, given that oil ash comes from the oil that is burned any oil consumption is bad, in 17 years and probably 400K miles of driving 1.9TDi's PD's and now a 2.0 CR TDi I have only ever once needed to top up the oil so maybe 1l in all that time and I used to really stretch the oil change intervals.

 

Burning 1l every 2K miles I would expect the DPF to become clogged very quickly, lets hope that cleaning will get rid of the gunge.

It's defo not good eating that much oil, i might get a diagnostic for that aswell finger crossed it's not going to be something too expensive cause if it is will be on sale. Dpf will need to be changed sooner or later and only this alone it's not going to be cheap.

On 28/01/2022 at 23:16, SSuperb3 said:

It's defo not good eating that much oil, i might get a diagnostic for that aswell finger crossed it's not going to be something too expensive cause if it is will be on sale. Dpf will need to be changed sooner or later and only this alone it's not going to be cheap.

Oil consumption is going to be a big contributor to the DPF issues (presuming it is burning it and not leaking it), It would be beneficial to fix that otherwise the DPF cleaning is going to be short lived.
A genuine DPF is around £1800-£2000 on these from memory, so not a cheap fix unfortunately.