Driving with the DPF light on: How long is safe? | Rooster
Modern diesel vehicles are equipped with Diesel Particulate Filters (DPFs) to reduce harmful emissions. When the light comes on, it’s a signal that the filter requires attention. Ignoring this warning can lead to costly repairs or even engine damage. Here’s everything you need to know about driving with the DPF light on and how long it’s safe to continue.
What does the DPF light mean?
The DPF light typically illuminates when the filter is partially blocked due to a build-up of soot. This can happen if you’ve been doing frequent short trips or city driving, which prevents the DPF from reaching the high temperatures needed to burn off soot effectively.
Can you keep driving with the DPF light on?
It’s possible to drive a short distance with the DPF light on, but you should address the issue promptly. Continuing to drive without resolving the problem may cause the filter to become fully blocked, requiring professional cleaning or replacement.
How to clear the DPF light
To clear the DPF light, try the following steps:
- Go for a regeneration drive: Take your vehicle on a motorway or dual carriageway and drive at a steady speed (around 40-50 mph) for 20-30 minutes. This helps the DPF reach the necessary temperature to burn off the accumulated soot.
- Follow your vehicle’s manual: Some vehicles have specific instructions for manual regeneration. Check your owner’s manual for guidance.
- Seek professional help: If the light remains on after attempting a regeneration drive, consult a mechanic. Ignoring the light for too long can result in costly repairs.
How long is it safe to drive with the DPF light on?
It’s best to address the DPF light as soon as possible. Driving for a prolonged period with a partially blocked filter can lead to:
Reduced fuel efficiency
Increased emissions
Permanent damage to the DPF, which may cost hundreds or even thousands of pounds to replace
Preventing DPF issues
To avoid problems with your DPF, consider the following tips:
Incorporate longer journeys at higher speeds into your driving routine to allow the DPF to regenerate naturally.
Avoid excessive idling, which can contribute to soot build-up.
Use high-quality diesel fuel and adhere to your vehicle’s maintenance schedule.
How Rooster can help
At Rooster, we’re committed to supporting safe and efficient driving habits. With Rooster, you can save up to 50% on services, MOTs, and repairs while enjoying car insurance tailored to your driving behaviour. Download the app today to take control of your vehicle’s maintenance and insurance costs.
