What does the Diesel Particulate Filter light mean?
Your car’s internal computer will monitor the level of soot inside the DPF to determine if regeneration is needed. When the level of soot hits a certain threshold, about 45% blocked, then the engine will turn on passive regeneration. If that process is interrupted then the warning light will come on to encourage the driver to do active regeneration.
Can I do dpf cleaning, regeneration & replacement myself?
Unless you are a qualified mechanic with the required skills, training and equipment to do the job, we strongly recommend dpf cleaning, regeneration & replacement is only carried out by a professional mechanic. Just enter your postcode and your car’s registration number at the top of this page and select the work needed to get an instant fixed price up front.
What are the symptoms of a faulty dpf?
There are a number of symptoms which could point to a blocked DPF:
- The DPF warning light on the dashboard will come on
- Car goes into ‘safe’ or ‘limp’ mode
- Loss of power
- High fuel consumption
- Starting issues
How long does it take to clean a DPF filter?
A DPF clean typically takes 1 hour, but can take less or more time. Ultimately, the time that the job will take can depend on the state of the DPF and your vehicle’s make and model, year, as well as other factors.
The mechanic will go through the DPF history diagnostic and check that the filter has failed to complete a regeneration.
Specially designed chemicals are added to the system, via an opening usually used for a pressure sensor / temperature sensor on the
DPF and allowed to soak in before running a forced regeneration through the diagnostics.
The mechanic will check performance of the DPF and advise further if there is still an issue with regeneration due to failure of the unit core.
What are the symptoms?
The DPF warning light on the dashboard will come on
Car goes into ‘safe’ or ‘limp’ mode
Loss of power
High fuel consumption
A DPF regeneration has not sufficiently cleared the DPF of soot build up.
Can a DPF be cleaned?
Yes, if a DPF has become too clogged for a forced regeneration or the Mass Ash Volume has been exceeded, then a physical cleaning of the DPF will be required.