DPF Repairs & Diagnostics in York
If your vehicle has a DPF warning light, reduced performance or keeps attempting to regenerate, it's important to identify the underlying cause rather than simply clearing the fault codes.
At AS AutoTech York, we provide professional DPF diagnostics and repairs for most diesel cars and light commercial vehicles. Our aim is to identify why the DPF has become blocked before recommending the most appropriate repair.
Our Diagnostic Process
Before recommending DPF replacement, we investigate the vehicle to establish why the fault has occurred.
Depending on the symptoms, diagnosis may include:
Professional fault code analysis
Live data analysis
Differential pressure testing
Temperature sensor checks
Investigation of EGR operation
Boost system checks
Injector correction values where appropriate
Road testing
Assessment of regeneration history
This helps avoid unnecessary DPF replacement where another fault is preventing the system from operating correctly.
Common DPF Problems
We regularly investigate faults including:
DPF warning lights
Frequent or failed regenerations
Reduced engine performance
Engine management lights
Excessive exhaust smoke
High fuel consumption
Vehicles stuck in limp mode
DPF differential pressure faults
Many DPF faults are caused by another underlying issue rather than the DPF itself.
DPF Regeneration
Where appropriate, we can carry out a forced regeneration after confirming the vehicle is suitable and any underlying faults have been addressed.
Not every blocked DPF should be regenerated. If another fault is present, carrying out a regeneration without diagnosis may only provide a temporary improvement.
Why Choose AS AutoTech York?
As an independent workshop, we combine manufacturer training with over 14 years of practical experience to provide honest advice and high-quality workmanship.
Our approach is simple:
Diagnose the fault correctly.
Explain our findings clearly.
Only recommend repairs that are genuinely required.
Never replace parts based on guesswork.
Whether your Peugeot needs routine maintenance or a complex diagnostic investigation, we'll always discuss our findings and any repair options with you before carrying out further work.
Need Help With a DPF Fault?
If your vehicle has displayed a DPF warning or keeps regenerating, we're happy to investigate the cause.
Vehicle Fault Diagnosis appointments can be booked online, or you can contact AS AutoTech York if you'd like to discuss the symptoms first.
AS AutoTech York is based in York and welcomes customers from York and the surrounding areas including Haxby, Wigginton, Huntington, Clifton, Rawcliffe, Acomb, Copmanthorpe, Strensall, Tadcaster, Selby, Easingwold and Pocklington.