Hi Singh, thanks for you suggestion for my 2015 diesel Volkswagen Toureg. We have 103,805kms on the dash board . My car is now unable to tackle any hills as it stopped half way up the Diesel particulate Filter sign icon did show up.Gone into limp mode perhaps, any lights, messages on the dash?
How many KMs? How do you know it's the dpf?
If you already have reached the last stage ie take it to a workshop message then you will need to get a forced regen by the dealer and they will tell you the ash loading, if too high then you can get it split open/ cleaned by some dpf specialists.
But that shouldn't be the case for a 2015 I would think, unless you have been doing lot of short trips over the years