Audi A1 DPF problems and cleaning
A particulate filter warning light or "particulate system fault" message on a diesel A1 means the filter is clogging with soot. We read the codes at your home or work and clean it there for £275 + VAT.
DPF warning signs on an A1
- The particulate filter warning light
- A "particulate system fault" message
- Less pull than usual, or limp mode
Why the A1's filter blocks
A small diesel used mostly for short local trips rarely runs hot enough to finish a regeneration, so soot builds until the warning appears. A sticking EGR valve or a faulty pressure sensor can add to it.
What we do about it
Diagnostics cost £100 + VAT. Where soot is the cause, the A1's filter is cleaned on the car for £275 + VAT, using a solution and then a forced regeneration.
Where a clean isn't the answer, the DPF delete is £220 + VAT.
Why does my A1's DPF keep blocking?
Mostly because short trips stop regenerations finishing. If it blocks again soon after a clean, there may be a fault adding soot.
Can I keep using my A1 with the DPF light on?
Briefly, but more short trips will make it worse. If the car loses power, book a check.
Will a forced regeneration clear the A1's filter?
On a light soot load, perhaps. Packed soot needs softening with a cleaning solution first.
Can an A1 with the DPF deleted be used on the road?
No, we only delete the filter on cars used off-road or going for export. Our DPF removal guide explains the law.
Sort the DPF problem on your A1
Pass on the A1's registration and the message on the dash, and we'll book a time. Other models are on our Audi DPF page, and A1 remapping is also available.
Eccles, Manchester M30 0SF