P244A on SEAT: How to Diagnose & Fix
Diesel Particulate Filter Differential Pressure Too Low (Bank 1)
1 SEAT model · 1 documented issue · 1 critical · $300-$1,500 repair
P244A on SEAT by model: symptoms, diagnosis and fix
Diesel Leons (1.6 TDI and 2.0 TDI) using the EA189 engine - the engine at the centre of the Dieselgate emissions scandal - are widely reported for EGR valve and EGR-cooler clogging with soot and DPF (diesel particulate filter) blockages, especially on short-trip/urban driving that prevents the filter reaching regeneration temperature. After the mandated emissions 'fix', many owners additionally reported worsened DPF behaviour and oil dilution (diesel washing into the sump during frequent active regens), requiring more frequent oil changes.
Common Symptoms
- DPF / glow-plug warning light
- Loss of power / limp mode
- Frequent active regenerations
- Rising oil level (diesel dilution)
- Rough running and increased emissions
- Excessive smoke
How to Fix
Clean or replace the EGR valve and EGR cooler; clean or replace the DPF; force a regeneration via diagnostics and take the car for regular sustained motorway runs to allow passive regen. Monitor oil level/dilution and shorten oil-change intervals if doing many short trips. Use correct low-SAPS (e.g. VW 507.00) oil.
Sources for this issue (2)
P244A code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P244A mean on a SEAT?
P244A stands for "Diesel Particulate Filter Differential Pressure Too Low (Bank 1)." P244A is a diesel emissions code meaning the differential pressure across the diesel particulate filter (DPF) on bank 1 is too low. A pressure sensor measures the difference between the DPF inlet and outlet to gauge how loaded with soot the filter is; an abnormally low reading suggests the filter isn't restricting flow as expected. This can indicate a cracked, missing, or hollowed-out DPF substrate, or a sensor/hose problem giving a false low reading. It points to the DPF or its differential pressure sensing system rather than the engine itself. On SEAT it is documented across 1 model: Leon.
What are the most common causes of P244A?
The most common causes of P244A are: Cracked, damaged, or failed (hollow) DPF substrate, Faulty DPF differential pressure sensor, Disconnected, cracked, or leaking pressure sensor hoses, Clogged or blocked pressure sensor reference lines, Exhaust leak upstream or around the DPF, Aftermarket or tampered/removed DPF, Wiring or connector fault at the pressure sensor. The specific cause varies by vehicle.
How much does it cost to fix P244A on a SEAT?
Published repair estimates on SEAT range from $300 to $1,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P244A on a different make?
View P244A across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.