Rinse the filter from both sides with warm water. Ensure that any contaminant flush is drained out from the filter, and continue until the water runs clear through all openings/apertures. DPF’s have been fitted to comply with European emissions regulations and it is illegal to alter or remove the system. Prior to the conception of DPF filters, those harmful exhaust gasses were being pumped straight out into the atmosphere. The warning light is there to serve as an alert that the system requires attention. It’s really important to take action as soon as the light illuminates, failure to do so can result in an expensive repair bill. Update – October 2023– We have updated our product recommendations in line with some excellent new products that have been released in the UK market.

You may notice a rough and different idle to your car engine. It may be jerky and unsteady when stationery, due to the gasses not flowing properly through the DPF filter. Put the numbers to one side and notice that hundreds of car repair garages continue to offer the removal of DPF filters. MP’s are labelling this practice as ‘detrimental to people’s health’ and ‘unacceptable’. By running your car in this manner, you regenerate the DPF Filter and unclog all the soot and dirt that’s built up over time.DPF cleaners are suitable for most diesel or biodiesel engines and they may require regular usage to keep the DPF clean. However, if you find that they aren’t as effective as you would expect, go on a “spirited” drive whilst keeping the RPM’s high. You could also drive on the motorway and keep the car in a lower gear whilst travelling at 60 to 70 MPH. This type of driving along with using the cleaner should help to keep it clean as long as there isn’t a fault with the DPF. As well as the warning light, you’ll also likely notice a decrease in performance from your car. You may experience the following symptoms.

If you have an automatic select the auto second gear position and drive the engine around 5,000 rpm. Wynn’s, the US based company, have developed an outstanding reputation over many years. They produce a whole host of engine performance additives and this DPF cleaner scores highly for value for money. Impressively, this DPF cleaner is also suitable for use in biodiesel vehicles all the way up to B30. The key features of Wynn’s DPF cleaner are;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. The Used Car Guy holds no liability for your outcomes when trying the procedure listed above. This article is meant only to aid car owners that wish to avoid spending large amounts of money on their used car.

If your diesel car is fitted with a DPF, it’s imperative that you use DPF compliant engine oil. Using an oil that doesn’t meet the required specifications for your engine can result in catostrophic failure. Since 2014, any diesel vehicle missing a diesel particulate filter will automatically fail its MOT. The Guardian newspaper revealed that thousands of drivers have been caught without a DPF fitted to their vehicles.

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The cost of using a dedicated DPF cleaner regularly is far cheaper than the cost of a DPF repair or replacement, it’s a great preventative measure which is now an essential part of maintaining our vehicles. You need to make sure you choose the best DPF Cleaner you can afford to get the best results possible. How Long Does The DPF Cleaner Take To Work? A DPF system works sitting in between the vehicle engine and exhaust system. It’s a small to medium sized filter which catches exhaust soot and then stores it in the filter instead of it being pumped out of the exhaust and into the atmosphere. If your car is suffering with a fuelling, or EGR valve system problem, it can prevent a DPF regeneration from taking place. Our advice would be to use a good quality DPF cleaner to keep the system clean and also to ensure your car is treated to a decent run out allowing the system to do what it needs to do. This is one of the reasons we have added to and enhanced our Best DPF Cleaner article as the needs has increased What is a DPF? Wait for five minutes before restarting your car to find that the DPF warning light, glow plug light or engine management light switched off!

Diesel particulate filters (DPF) are placed on the exhausts of diesel vehicles to prevent toxic emissions from flowing into the environment. Despite this, some motorists have the diesel filter removed to avoid mechanic failures and additional maintenance costs. In 2016 I bought a Vauxhall Zafira diesel automatic, with a DPF filter fitted as standard. As I was driving the car from Southampton to Bristol the engine glow plug light began flashing. Different cars will illuminate different warning lights as you can see in the image below.Over the last 10 years, air pollution has become a public health emergency and it is further alleged that particulate pollution is now responsible for around 50,000 avoidable deaths every year in the UK. Founded in 1971, FoE is a federation of 74 groups from all over the world who are dedicated to saving the environment. One of their primary causes involves complaining to the ASA about the prevalence of adverts for DPF removal services. Modern diesel vehicles require regular journeys and not just that, they require journeys which allow the engine to get up to optimum temperature which then allows all of the emissions systems to work at their best. Unfortunately, short, infrequent journeys are a huge problem for modern diesels which are equipped with DPF filters as they don’t allow the DPF and other emissions systems to work properly. The Coronavirus pandemic has resulted in most people working from home which has then culminated in their vehicles not being used anywhere near as much. When drivers are using their cars, they are generally being used for a weekly trip to the shops, school run etc.