What the diesel particulate filter light means As you drive, the car’s computer constantly monitors the soot level inside the filter to determine when regeneration is necessary. The end result of this, is that the particulate filter gets more and more blocked with soot, on each journey to the point where the car exhaust cannot process the emissions correctly and the DPF warning light comes on, and the car often enters ‘limp mode’, meaning reduced performance and a very sluggish response. Our certified technicians here at YourMechanic are always available to inspect your car and find out the cause of the issue. It prevents harmful particulate matter from being released into the atmosphere. Fortunately the early blockages can be cleared easily – sometimes your car will even do it naturally without you having to … When you first see the light, you can resume normal driving, but when you get a chance, take the car onto the highway and drive it for around 10 minutes at 40+ MPH. How it works and why the light may come on. Hello. This should turn off the light as long as nothing is preventing the regeneration from taking place. Check the dashboard to confirm that the diesel particulate filter warning light is on. Be sure to act quickly if your car ever goes into limp mode otherwise the filter will need to be replaced and that turns out to be quite a costly repair. When the ECU... Get a fair & transparent quote instantly before booking. The best thing to do in such an instance is to take your car to a trusted garage. The exact text will differ depending on the actual application you have running. All rights reserved. Take the car to a certified technician who can run a forced regeneration program to try and save the filter. Many diesel engines now require the addition of a diesel particulate filter to the exhaust system to comply with the emissions legislation. I was up and running in no time ! When this light first comes on, continue driving your car like normal and try the active regeneration method by driving on the highway. And thanks for reading Autoblog. Ford Taurus - Warning Light is on - Jamaica, New York. One of the ways vehicle manufacturers have been able to clean up the tailpipe of diesels is the use of a Diesel Particulate Filter (DPF).The DPF is fitted to new diesel … From September 2009, the Euro 5 legislative standard came into effect, part of which required all diesel cars registered from that point on to be equipped with a diesel particulate filter, or DPF. Why Does Diesel Particulate Filter (DPF) Warning Light Came On? In order to combat exhaust emissions, modern diesel engines are fitted with a particulate filter in the exhaust. This time I want to tell you how to solve DPF warring light from coming on to often to any car fitted with Diesel Particulate Filter. The diesel particulate filter systems on these engines are poorly designed and prone to serious, ongoing problems. The engine control unit (ECU) monitors the saturation level inside the filter, and when it reaches a certain percentage, increases the temperature inside the exhaust to ‘burn off’ … This should sufficiently raise the temperature to levels high enough to regenerate the filter, and hopefully the light will turn off. When driving at high speeds, the temperature in the exhaust gets hot enough to burn the soot. Jason es todo un profesional con mucho conocimiento en la mecanica, buena persona educado y amigable. Fast, free online quotes for your car repair. You must be logged in to perform that action. A yellow diesel particulate filter light means that action is required. If the vehicle doesn’t reach high speeds frequently, the engine can burn some extra fuel to raise the temperature at lower speeds and achieve the same result. Thank you so much Nicholas for resolving my issue with my car. This article originally appeared on YourMechanic.com as What Does the Diesel Particulate Filter Warning Light Mean?. document.write(new Date().getFullYear()) On Vauxhall cars it indicates that the filter is full or has become blocked with soot. This is called active regeneration. Hope we get him every time! You may have noticed that modern diesels no longer leave you in a cloud of smelly black smoke when they accelerate off. Has become blocked with soot have n't turned off your adblocker in your browser enough fuel in the gets! Or the oil Pressure light coming on or blinking constantly despite oil being... A week between 7AM-9PM in a cloud of smelly black smoke when they accelerate off much 80... Available to inspect your car and find out the cause of the diesel particulate filter in exhaust! To burn the soot 2,000 U.S. cities resort solution that the filter for as as... 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