Diesel Particulate Filter (DPF) Fault Symptoms & Problems

The diesel particulate filter (DPF) has a pretty dirty job, it sits in the exhaust system and catches and stores soot that's produced from diesel engine combustion. They have become essential in diesel cars since Euro 5 emissions standards were introduced in 2009. It's actually illegal to remove a DPF from your car and the fines can be pretty hefty.

Given the average size of a DPF there's no way that it can hold all of the soot generated between service intervals. So to get around this they have a 'regeneration process' whereby the soot is periodically burned off. The ECU will decide when this needs to be done and will start the process without any driver intervention. If this process doesn't complete you'll often see the orange warning light (see image below).



When you see this it's vital to take the car out for a good run (ideally a motorway run) to give it chance to run the regeneration process. Running the car with this warning light on for months and not allowing it to regenerate can lead to significant engine problems and costs.

DPFs can cost into the thousands so maintaining yours is very important, especially on older cars where the replacement cost could easily write the car off value wise.
5 Symptoms of Diesel Particulate Filter (DPF) Problems
We have 11 owner submitted problems mentioning the Diesel Particulate Filter (DPF)

Showing the latest 10, see more problems here

1
response
Warning light on dash

Warning light on dash check pollution system

2010 Renault Scenic 15 diesel
Posted: Mar 27, 2021
1
response
Engine management and esp/asr system fault

Had this problem a few weeks now first time Engine management light came on along with ESP/ASR System fault it was taken...

2066 Citroen Berlingo HD Blue
Posted: Feb 13, 2021
3
responses
High fuel comsumtion

van using lots more fuel than it used to do,i have used a dpf cleaner in the exhaust,also had a full service,i also use ...

2013 Vauxhall Vivaro 2.0 cdti
Posted: Feb 2, 2021
4
responses
Astra j 2014 diesel loss of power

Astra j 2014 diesel won't rev above 1400rpm and will only drive about 5mph max. Garage which l took it to told me that t...

2014 Vauxhall Astra 1.6 diesel
Posted: Jan 15, 2021
3
responses
Goes into limp mode wiring problem

car goes into limp been told it has wiring problem every thing is fine dpf injectors are all fine

2012 Ford Kuga 2.0 tdci
Posted: Dec 9, 2020
3
responses
Opel Meriva. Code 55 + amber symbols on dashboard

I have a code 55 and an amber filter(?) symbol displaying on dash. Mechanic said it was a sensor for a clogged particle...

2011 Vauxhall Meriva 1.3L CDTi
Posted: Oct 8, 2020
9
responses
Wont rev over 3000rpm

car running rough, wont rev over 3000rpm

2015 Peugeot 308 gt
Posted: Oct 3, 2020
1
response
Dpf light

Running rough , dpf light on

2008 Peugeot 307 Petrol
Posted: Sep 21, 2020
1
response
Engine tickover to fast 1000rpm

when indrive with tickouver at 1000rpm car runs away you have to keep touching the brake or dropping the clutch

2013 Vauxhall Insignia ecoflex cdi
Posted: Sep 21, 2020
7
responses
Fluctuating fuel consumption

Car starts and drives fine, but every so often the fuel consumption goes through the roof while I am driving. If I turn ...

2011 Vauxhall Zafira 1.7tdi
Posted: Feb 23, 2020
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