Volkswagen what is dpf

Log in. Install the app. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. DPF and how it works. Thread starter AlanC Start date Feb 3, AlanC Traveling Top Poster. Lifetime VIP Member. Makes a lot of sense, if you have had the problems I have experienced before the new engine was fitted.

Sorry it is a long item, but worth reading. Diesel particulate filters are becoming more commonplace on diesel engines, particularly sizes 2.

This is in order to reduce the exhaust emissions as required by European legislation. The prime reason for a DPF is to reduce particulate matter entering the atmosphere. Particulate matter is found in the form of soot, which is produced during diesel combustion. The DPF traps most of the soot which would normally travel down the exhaust and into the atmosphere. The ash is non-removable. During long motorway journeys, passive regeneration will occur. This needs no intervention from the engine control unit.

Due to this soot is burned-off and is converted into a smaller amount of ash. The procedure lasts for about 5 — 10 minutes. The soot particles are oxidised at this temperature. The ECU will trigger a regeneration process, if for some reason this is aborted, ie. This will continue for 15 minutes.

If after 2 attempts of 15 minutes, a successful regeneration has not been possible, the loading will increase. The system will try to run a regeneration process for 15 minutes. If unsuccessful, the system will repeat this process for a further 15 minutes, if still unsuccessful, the DPF light on the driver display panel will then be lit.

The owners handbook states, the DPF symbol lights up to indicate that the diesel particulate filter has become obstructed with soot due to frequent short trips.

As a result of the increase in temperature the soot in the filter will be burned off. If the DPF symbol does not go out, the driver should contact an authorised Volkswagen repairer and have the fault rectified.

At this point the customer should follow the advice in the handbook. At this point the customer will also be complaining of lack of power, etc. Not recommended for sale in the Channel Islands and inner city driving. At this point regeneration is not an option and replacement of the DPF is necessary.

This does not only relate to the DPF itself, but the entire exhaust gas handling system. Stay tuned. Your email address will not be published. Never use biodiesel, petrol or heating oil. Do not allow the fuel tank to run empty.

Do not tow-start the vehicle. Even when the exhaust purification system is working perfectly, there may be a smell of sulphur from the exhaust in some conditions. This depends on the sulphur content of the fuel being used. First read and observe the introductory information and safety warnings. This depends on the sulphur content of the fuel.

Next Research shows that over number plates are stolen a week in the UK. About The Author. Karl Karl is the editor and owner of this glorious website. Related Posts. Jim White on May 6, at Leave a reply Cancel reply Your email address will not be published. DPF Cleaning Aditives. EGR Cleaning Sprays. Observe the valid speed limits. The DPF warning message may either flicker or have a constant light, your VW management light may also appear.

Providing practical solutions to DPF filter issues. Our DPF cleaning services provide many advantages over traditional cleaning methods. Call us for more information with advice from experienced DPF experts or contact us via our contact form here.