Problems with Audi Q7 Diesel: Engine indicator light, loss of power and defective diesel particulate filter

Hey, had a similar problem with my 2012 Audi Q5, I'm not a car mechanic but it was diagnosed as "DPF very heavily loaded" at my garage. Had it fixed and it cost me 1325 euros. For more specific help, could you please give me some more information about your vehicle, like mileage, when and how often the problem occurs? Any abnormalities you have noticed? This can help enormously to localize the problem more precisely. I hope you find a solution soon, I know how annoying this can be!

(Translated from German)

Hey, thanks for your reply. My Q7 already has 175832 km on it and the problem occurs irregularly, especially on longer journeys. I particularly noticed the high fuel consumption. The regeneration of the DPF also no longer seems to be working properly. I'm already thinking about going to the garage. However, 1325 euros is a steep price. Does anyone else have any experience of this or any other tips?

(Translated from German)

Hi, I once had a similar problem with my old Bimmer. The same symptoms - engine light on, loss of power, uneven engine running and increased fuel consumption. I was told straight away that it could be the diesel particulate filter. It turned out that the DPF was completely clogged and the regeneration was no longer working correctly. At the garage, they tried to clean the filter instead of replacing it straight away. Incidentally, the costs were not really far off what you quoted. In the end, however, the DPF had to be replaced. What I can tell you: Really get it checked at the garage. I know the price is steep, but in the end you'll be happy when your car is running properly again. And if it can be cleaned, it might not be that expensive ;)

(Translated from German)

Hi, thanks for your detailed reply and your advice. Yes, you're right, I should probably go to the garage sooner rather than later before the problem gets worse. I've now arranged a workshop appointment for next week and will see what they say. A new DPF will probably be inevitable, but I'm hoping the cost won't be too high. I'll report back here what comes out of the investigation. Thanks again for the help!

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Hello, what should I do?

(Translated from French)

Hi Adrian, could you please provide more details about your car issue? The more specific you are, the better I can assist you.

So yesterday I had the DPF fault in my Audi A4 B8 V6. I then drove faster and kept my revs at 2500-3000 so that it would burn out. Unfortunately it didn't work. And when I started my engine this morning, the DPF error was gone and now my display shows drive malfunction. It's in emergency mode but the engine is running normally and smoothly. So unfortunately I don't know what exactly has happened. The errors it shows me now are: P246300, P200200,P200400 and U112300

(Translated from German)

The error codes you've mentioned are related to the Diesel Particulate Filter (DPF) system. P2463 indicates that the DPF is clogged, P2002 and P2004 suggest issues with the DPF efficiency. U1123 is a communication error, which might not be directly related to the DPF issue. Before you consider replacing the DPF, I would recommend having the exhaust back pressure sensor checked, as a faulty sensor can prevent the DPF from regenerating. Also, a professional mechanic should perform a forced regeneration using a diagnostic tool. Please remember that driving with a malfunctioning DPF can lead to more serious engine damage, so it's important to have this issue addressed as soon as possible. Let us know how it goes after you've had these checks done.

Thanks for the quick solution. I have to drive about 50km to the workshop as my place of work is there which doesn't do the engine any good does it ?

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