What happens if you ignore DPF light?
Don’t ignore a warning light If you ignore a DPF warning light and keep driving in a relatively slow, stop/start pattern, soot will build up in the filter until your car goes into ‘restricted performance mode’ to prevent damage. If you let it get this bad: Driving at speed alone won’t be enough.
Why does the DPF light come on in a diesel car?
The DPF light comes on to tell you that there’s a problem with your car’s diesel particulate filter. This is something that has been fitted to diesel cars since 2009 to reduce the amount of soot released through the car’s exhaust system, lowering emissions. This soot is harmful and can cause respiratory problems.
When to switch off the DPF warning light?
Once you have run the car very hot for a sustained period pull over and immediately switch off the car. Wait for five minutes before restarting your car to find that the DPF warning light, glow plug light or engine management light switched off!
Is it illegal to drive with a faulty DPF filter?
Order Forte Diesel DPF Cleaner. Depending on your car type, driving with a faulty DPF filter can be illegal. Motorists tend to avoid repair due to the expense of cleaning, remapping or replacing the filter, particularly if the car still runs pretty well but there is an engine warning or glow plug light flashing.
How long can I drive with the DPF light on?
Find a clear stetch of dual carriageway / motorway, and drive continuously for a further 20 – 25 minutes at 45 – 60mph in a gear which keeps the Engine RPM of the car comfortably at 3000 rpm (automatic owners – choose “M” or sport mode)
What happens when the DPF light comes on?
When the DPF light comes on, the car computer is basically telling you that the particulate filter has not been able to regenerate normally at any point during the car’s daily usage pattern, and that the filter is now becoming blocked to the point where it will affect the cars performance and MPG,…
Can a diesel engine damage the DPF filter?
Notice: Permanent damage can occur to the DPF or related components if the required Ultra Low Sulfur Diesel (15 ppm sulfur maximum) or low ash CJ-4 engine oil is not used. This damage would not be covered by the vehicle warranty.
What happens if you ignore the diesel particulate filter warning light?
If you ignore the light, the soot will continue to build up until the computer turns on a “limp” mode to try and prevent any damage from occurring. This limp mode limits your top speed to reduce how much soot is getting sent through the filter.
How to reset / regenerate / clear your DPF warning light?
It’s at this point the warning light will come on and your intervention is required. How to clean, clear and reset (regenerate) the system. You should drive your vehicle for approximately 15 minutes keeping the engine revs between 2000 – 2500 rpm.