If you drive a diesel car, please be aware that you need to take care of your Diesel Particulate Filters (DPFs). Your particulate filter must regenerate itself every 300 miles or so, which is generally done by driving for ten to 20 minutes at 40mph or faster. This heats up the exhaust and burns off the soot in the filter.
Failing that, some cars have an ‘active regeneration’ process that adds fuel to the exhaust to raise the temperature and allow the filter to be cleaned at lower speeds. However, the revs still have to stay above 2,000 for around ten minutes, which may be difficult to achieve right now. If neither of these options is open to you is to use your vehicle as little as possible.
If your DPF is becoming blocked a warning light will come up on your dashboard. DO NOT IGNORE THIS! If you ignore a DPF warning light, your vehicle could completely shut down and cause major engine damage. The DPF will need to be removed and cleaned or replaced and you’ll have to pay for this work.
It will usually look like one of these symbols:
If this light comes on then taking corrective action to clear the DPF is fairly simple, all you usually need to do is take the vehicle for a drive of 10-20 minutes at speed in excess of 40mph in a location that is safe to do so, such as a dual carriageway. This will usually be enough and the light will turn off as the DPF has regenerated itself. This is what they are designed to do. It’s as easy as that.
If you ignore the warning light then your vehicle will either go into ‘limp’ mode or stop altogether. This will then mean that you will not be able to drive the vehicle and the DPF will need to be removed and cleaned or replaced and you may be liable for the cost of this work.
DPF’s do a great job in reducing emissions and usually will be problem free providing you take your vehicle for a long drive every now and again, and you don’t ignore the warning lights.
If you are unsure about DPF’s please contact your LeasePlan Customer Service advisor who will be able to help you.