Hi everyone, and help

[dave548]

Hi guys and girls. Good to be here.

Just before Xmas I wrote off my beloved Qashqai on black ice which was a 1.6 petrol on a 60 plate. Eager to replace it because I love the QQ I purchased a 63 plate 1.5 dci Acenta. That was a week ago.

Yesterday I got a steady RED engine warning light on, called RAC this morning who promptly came out with his box of tricks and diagnosed the Diesel Particulate Filter was causing the problem. He cleared the light and advised that I take it for a "drive like you've stolen it" run which I did. However about 3 miles down the road the Red light is back on and it did not clear despite my "aggressive" driving. So next I purchased so DPF cleaning solution, followed the instructions and added to the fuel. Still nothing (although I have only done about 10 miles since). I have been in contact with the dealer who said something about "regeneration"????ttin

Additional to this, I know diesels are significantly noisier than petrol engines which I what I am used to, but the knocking (especially when cold and accelerating) seems incredibly loud. Is this just a feature of the type of engine, and is there anything I can do to  reduce this ie. Injector cleaner etc. etc.

I am sure these topics have been previously raised and apologise for bouncing the subjects, but having just spent a considerable amount of money on this car, I want to know that I am not sitting in a "Dud"

Thanks for reading and your time

Dave

[Trevor]

Hi Dave...welcome to the Forum

I imagine that the your new purchase is quite low mileage and possibly only used for short journeys, hence the reason the DPF is clogged.

Diesels really need to be worked to get the best from them and if not revved sufficiently then they tend to clog up internally.

The advice and course of action you are currently following is good and in certain circumstances (e.g. it hasn't blocked too much) then it should work.

If it still hasn't cleared after a while then it will have to have a forced regeneration by the dealer or reputable repairer.

Once it is clear, then it will involved driving it a distances every so often to let is naturally regenerate and stay clear.

Hope that helps and let us know how you get on with it all.

Cheers,   Trevor

 

[dave548]

Many thanks Trevor. We did have to go down the specialist forced regen as it just wouldn't shift. All good now though.  I hope my daily trip to work of 35 miles will now keep it clear? Thanks again.

[Trevor]

Biggest problem sometimes is inheriting problems with a car that the previous owner has introduced like this. 

Hopefully the journey involves long stretches to keep the revs high enough for prolonged periods of time....then this should keep it clear.  Good luck.