DPF REGENERATION PROBLEMS HOW TO

вЂ“ This results in often large labour bills for the removal and refitting of the filter, this will also only result in a temporary solution if any underlying faults have not been resolved. They suggest removing the DPF and cleaning it out with a jet wash or chemicals.They suggest removing the DPF completely вЂ“ This is effectively an illegal practice, as of January 2014 the removal of a DPF is an instant MOT FAILURE.When this is the case they usually do 1 of 3 things in order to вЂњfixвЂќ the problem.

DPF REGENERATION PROBLEMS HOW TO

Some garages donвЂ™t understand the function of DPF filters, and they donвЂ™t understand why they are blocking up and they certainly donвЂ™t know how to regenerate them. So my DPF is blocked, what are my options? The car at this point may also start to feel like it is down on power. When the DPF filter blocks the car will show a warning symbol on the dashboard or monitor if fitted. вЂ“ We always carry out a diagnostic check for this first. There is an underlying fault with the engine, there may be additional faults in the DDE that have prevented regeneration from taking place.вЂ“ We also see cars that are used for short journeys driven on the fuel light. The car only gets used for short journeys, or stop-start city like driving, where the car fails to get up to speed for any length of time.There are multiple reasons why a DPF can blocked up, but the main two are The exhaust becomes blocked and this triggers fault codes to store in the DDE ( engine control unit ) At this point it is highly unlikely that the DPF will вЂњnaturallyвЂќ regenerate. The problem arises when the car fails to regenerate the DPF. A journey of 20-30 minutes of driving at speeds of above 40mph.at least 10L of fuel вЂ“ ideally above 1/4 of a tank of fuel.A DPF regeneration involves the car altering the fuel injector timings which results in the exhaust temperature increasing to a point at which the build up of carbon should burn off.ДЇor the car to regenerate the DPF, certain criteria need to be hit. These particles (carbon) get caught in the filter and begin to build up, eventually getting to a point at which the car will attempt a regeneration. If you drive a post 2006 BMW diesel then you probably have a DPF fitted!ДЄ Diesel particulate filter gathers, diesel particulates. BMW introduced DPF вЂ“ Diesel particulate filters around 2004 and eventually phased them in to the entire diesel range.

Dpf regeneration problems