dpf issues | Ask Honest John

Ask Honest John

Most recently answered dpf issues questions

I have a great Mitsubishi L200 pickup, which is pre-DPF. I'm now looking to change it, but I only do 5000 - 6000 miles per year, which are mostly short journeys so I don't want a diesel with a DPF. Is...

How should I get rid of the soot in my DPF?

What's the best way to clean soot from a DPF?

The DPF light keeps coming on in my car, despite driving it properly - what do you think?

I bought a 2006 Hyundai Tucson in October 2017. The engine warning light was flashing when I test drove it and I was told that this was the DPF. I was aassured it would be fixed and it was okay when I...

What should I look out for when buying a 2006 Volkswagen T5 Caravelle?

Can I reject my secondhand diesel because the DPF light keeps coming on?

I’ve recently bought a used car on finance with a deposit of £1000. On day three of having the car (less than 50 miles later), the engine management light came on. I rang the dealership and took it in....

The DPF light has come on in my car despite doing lots of miles - why has this happened?

I have a 2008 BMW 3 Series Touring 3.0d. I do 20,000 miles per year on A roads, at high speeds, and change the oil and filter very regularly. A diesel particle filter warning light has now come on. Why...

The oil is my BMW 3 Series is reading high - should I have it checked out?

The oil appears to be reading high in my diesel E90 BMW 3 Series, both via the dashboard indicator and also by manually checking (after driving approximately seven miles and leaving five minutes to cool)....

The DPF light has come on in my Audi Q3 - is this caused by the emissions update?

The DPF warning light has come on in my Audi Q3. It had the emissions update in March 2017. Audi have said that they will charge me £60 for diagnostics. If the problem is caused by the update then they...

How do you advise I drive my diesel Peugeot 2008 to avoid DPF issues?

I have a Peugeot 2008 1.6-litre BlueHDI. I'm aware that travelling very short journeys is not good for diesel cars. However, occasionally it is unavoidable to undertake such journeys. Is it beneficial...

I only do short drives - can I take precautions to stop DPF issues with my Mazda 6?

I've been reading some of the problems Mazda 6 owners have with DPFs. My Mazda 6 now has 93,000 miles on the clock, it had 90,000 when I bought it. I mostly do short runs (less than 15 miles). What should...