If you own a diesel car then chances are you have a Diesel Particulate Filter (DPF). Any diesel engine can be exposed to soot build-up, especially if you mainly drive short distances or low speed journeys. DPFs are designed to remove this soot as you drive, but over time they can stop working.
We recommend cleaning your DPF regularly to avoid expensive repairs and to keep your car running smoothly.
How does a DPF work?
As you drive, harmful exhaust soot starts to build up on the walls of your DPF filter, reducing performance and fuel efficiency. To keep the system clean, a process called ‘regeneration’ is used. This is when the exhaust temperature rises to 600°C and burns off the soot, keeping your engine free of harmful chemicals.
There are many things that can stop this regeneration process from working effectively, such as the type of fuel and oil used, driving style and vehicle age and mileage.
Do I need my DPF cleaned?
If you’re experiencing any the problems listed below your DPF may need cleaned;
- The DPF warning symbol has come on your car’s dashboard
- Loss of power
- The automatic stop-start isn’t working
- Poor fuel economy
- Cooling fans run more than normal
A new DPF system can cost as much as £3,000 at a main dealer, but in most cases, using a DPF cleaning product can solve the problem. So, if you’re experiencing any of these problems it’s important to get it checked out by a qualified technician as soon as possible to avoid expensive repairs.
Can I remove my DPF?
No. Following an update to UK emissions laws, it is now illegal to drive a car that has had its DPF removed. DPF removal will also mean you car will fail its MOT test.
