DPF (Diesel Particulate Filter) issues are one of the most common and expensive problems for modern diesel van owners. Here's what you need to know:
What causes DPF problems?
- Lots of short journeys (the DPF can't regenerate)
- Low-quality fuel
- Faulty EGR valve
- Using wrong engine oil specification
- Ignoring warning lights
Prevention tips:
- Drive at motorway speeds for 20+ minutes at least once a week
- Use the correct low-ash engine oil (check your manual)
- Don't ignore the DPF warning light — drive at 2,000+ RPM in a lower gear
- Use quality fuel — premium diesel can help
- Keep on top of general servicing
When it's blocked:
- Forced regeneration by a garage (£100-200)
- Chemical cleaning (£200-400)
- Professional DPF cleaning service (£300-500)
- Replacement (£800-2,000+ depending on van)
⚠️ Important: Removing the DPF is illegal for road use in the UK and will result in an MOT failure.
Has anyone dealt with DPF issues? What worked for you?