DPF Diagnostics
Cleaning a filter without knowing why it blocked resets the clock and nothing more. That diagnosis happens on the vehicle, which is not work we do: we clean filters that reach us already removed. What we can tell you is exactly what your filter is doing, measured rather than estimated, and that is often the number the diagnosis was missing.
- Typical duration
- Measured as part of the clean
- What we measure
- The filter
- Who reads the vehicle
- Your workshop
- Report issued
- Every job
What we can do instead
We measure the filter itself on a calibrated flow bench. Diagnosis on the vehicle, including ECU work, is carried out by your own workshop, and we can suggest one.
- Flow and back pressure measured on a calibrated bench, before and after cleaning
- A blocked filter separated from a filter that is merely suspected
- A substrate too far gone to clean identified before you spend anything on it
- Readings issued as a report your workshop can diagnose against
- ECU scans, live data and on-vehicle testing are your workshop, not us
- Ask us and we can suggest a workshop that does the vehicle-side diagnosis
At a glance
- Duration
- Measured as part of the clean
- Indicative price
- Quoted per job
- Category
- Core DPF Services
- Written report
- Included
Prices are indicative and depend on vehicle, filter size and condition. You receive a firm figure after the diagnostic pass, before any work is authorised.
What you get back
Each of these is a figure we record and hand over in writing, not an estimate offered at the counter.
The filter
What we measure
Your workshop
Who reads the vehicle
Every job
Report issued
Every job runs through the same documented six-step sequence, whichever service brought you in.
See the processOften needed alongside this
A blocked filter rarely has a single cause. These are the services most commonly carried out in the same visit.
Book dpf diagnostics
Tell us the vehicle, the symptoms and any fault codes on the dash. We will confirm whether this is the right service before you commit to it.