Peugeot P244A

DPF differential pressure too low on Peugeot HDi — Eolys additive system & pressure pipes are the usual culprits.

Peugeot P244A — DPF differential pressure too low on Peugeot HDi — Eolys additive system & pressure pipes are the usual culprits. Typical UK independent garage cost: £160–£1600.

What actually causes P244A on a Peugeot

Peugeot HDi engines use a fuel-additive (Eolys/FAP) DPF system — the additive lowers soot ignition temperature so the DPF regenerates more easily. P244A here usually means: (1) pressure-tap pipes blocked or perished, (2) DPF substrate cracked from a failed regen cycle, or (3) Eolys fluid run dry (the ECU compensates but eventually flags rationality faults). Drivers often report frequent regen attempts, then EML.

Peugeot engines that log P244A

• 1.6 HDi DV6 (208, 308, 3008, Partner)
• 2.0 HDi DW10 (308, 508, 5008)
• 1.5 BlueHDi DV5 (208, 2008, 308 newer)

How we diagnose P244A on a Peugeot

1. Diagbox / scan tool — read DPF differential pressure live, Eolys fluid level, and soot mass load
2. Inspect pressure-tap pipes for soot and splits — clean or replace before condemning DPF
3. Check Eolys fluid level (dealer or independent with Diagbox) — top up if below threshold
4. Inspect DPF visually for substrate damage if pressure pipes confirmed clear
5. After any DPF or Eolys work, perform a forced regen and reset soot counters

The common misdiagnosis to avoid

Don't accept a £1,400+ DPF replacement until Eolys fluid level has been checked at a Peugeot specialist (it's a sealed tank, requires dealer-level tool to read level). A £90 Eolys top-up can restore normal DPF behaviour.

Peugeot P244A repair cost in the UK

Expect £160–£1600 including parts and labour at an independent garage. Main-dealer quotes on Peugeot are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.

Bob's workshop tip

On 1.6 HDi DV6, P244A combined with frequent regen attempts and a slowly-dropping Eolys level often points at a leaking Eolys tank rather than the DPF itself — Peugeot specialist inspection is worth £40 before you spend £1,400 on a DPF you didn't need.

Codes usually seen alongside P244A on Peugeot

• P2002
• P2463
• P1340
• P244B

Symptoms drivers report with P244A

• Engine Management Light (EML) on, often shortly after a motorway run.
• Car drops into 'limp mode' with reduced power, making overtakes dodgy.
• Start-Stop system stops working (standard safety lockout for emissions codes).
• Noticeable whistling or hissing noise from under the car when accelerating.
• DPF warning light might flash, but the car doesn't feel like it's actually blocked.

Repairs that clear P244A

• Replace DPF pressure sensor (cheap first fix)
• Replace rubber sense pipes
• Backpressure test before DPF replacement

For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P244A guide.

Reading P244A on a Peugeot properly

A generic reader will show P244A and nothing else. What matters is the freeze-frame data stored with it — engine speed, load, coolant temperature and fuel trims at the moment the fault was logged — plus whether any other module on the Peugeot has logged something at the same time. Codes rarely arrive alone, and the order they were stored in usually points at which one is the cause and which are the consequences.

Clearing P244A without fixing it

Erasing the code resets the Peugeot's readiness monitors as well as the light. The fault returns on the next drive cycle if the cause is still there, and in the meantime the incomplete monitors can stop the car passing an emissions check. After a genuine repair, the car is driven until the relevant monitor completes before it is handed back.

Bob's Mechanical Repairs is an independent garage in Birnam, Dunkeld, Perthshire, with 32 years of Bob's experience on the tools. If P244A is showing on your Peugeot, bring any scan results with you — we will read the live data ourselves, confirm which cause it actually is, and price the repair before any work starts.