Cars that do high motorway mileage are less likely to suffer from DPF problems compared with town driven low mileage cars .A DPF regen will take place on the motorway when required it will have reached temp after few miles.It needs a coat of looking at but don´t panic people with unsubstaniated statements, there are fail safe systems build into the cars in fact they just stop if the DPF is so blocked or if its not bad they drop into LHM. .

Edited by Collos25 on 17/12/2012 at 21:55

Try one gear lower you will not get so many miles to the gallon but you will have less problems with the DPF.

No, you will have more problems.

DPFs can't burst into flames because they are a contained structure. It is possible for a very clogged DPF to regenerate too quickly and damage the channels through overheating, but this won't affect the rest of the car.

If you do reasonable high speed runs, the chances are that you are not having problems with DPF regeneration.The DPF may blocked with ash which cannot be burnt off. In this case, a new DPF will be required.

Or there may simply be a problem with a pressure sensor that is indicating an incorrect pressure drop across the filter and logging a fault code.

Thanks

Thanks

The particle filter system usually has a special fluid that saturates the DPF and lowers the temperature at which carbon/soot burns. This is why you need a longer run so that you can get the exhaust system hot enough to burn the soot out of the filter. Provided you have been using the correct low ash engine oil (VW507.00 spec) then it shouldn't be clogged up with ash. You can buy one shot fuel treatments that do the same thing to regenerate the DPF, Wynns will be the most available one but Forte do them as well and they work well. If the DPF is completely clogged the engine will not run.

VW do not use Eolys fluid in their DPF systems. Only engines that derive from Peugeot/Citroen designs and also used in some Ford's, Volvo's, Mazda's and Mini's use the system you refer to.

Don't waste your money, Wynns and Forte will not help the DPF regenerate, that is done by the ECU when it reaches a certain level of saturation.

If driving on the motorway for 30 minutes or so at about 2000 rpm has not cleared the light you need to visit a main dealer ASAP and get them to connect the car to their computer and do a forced regen. if you delay the DPF may not be recoverable.

Thanks

Thanks