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DTC/P0470·Volkswagen

P0470 on Volkswagen: Causes, Symptoms and Fix Cost

Quick Answer
Moderate SeveritySafe to drive (short-term)Volkswagen

P0470 on a Volkswagen means the engine computer has found an electrical fault in the circuit of exhaust pressure sensor "A": the signal is missing, stuck or outside what the circuit can produce. What sensor "A" measures depends on the engine: on many diesels it is an exhaust back pressure sensor before the turbo or before the particulate filter, and on many Volkswagen group TDIs the sensor Volkswagen calls exhaust pressure sensor 1 is the DPF differential pressure sensor, the part that tells the engine how full of soot the filter is. The usual causes are the sensor itself, its wiring or connector, or a missing 5 V supply; the exhaust and the filter are usually fine. VW, Audi, Skoda and SEAT apps often show this code as P047000; the last two digits are a failure-type byte.

Typical repair cost, all makes€30 - €470

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What does P0470 mean on a Volkswagen?

The Quick Answer above is the generic definition. What follows is the model-specific detail for the Volkswagen models that log P0470.

Volkswagen Golf TDI

2009-2014

On Volkswagen group common-rail TDIs this code points at exhaust pressure sensor 1 (G450), which is the DPF differential pressure sensor: a small box with one electrical connector and two hoses. On the 2.0 TDI engines coded CBEA and CJAA, sold mainly in North America, it sits in a foil pouch just behind the oil filler cap, not where some factory documentation shows it.

What causes P0470 on a Volkswagen?

Beyond the generic causes listed on the main P0470 page, these are the patterns noted for Volkswagen models:

Volkswagen Golf TDIFailed G450 sensor
Volkswagen Golf TDIBroken signal wire between G450 and the engine computer

How to diagnose P0470 on a Volkswagen with OBD2

Follow these steps to pinpoint the root cause of P0470:

  1. Read all stored codes and the freeze frame. Note whether P0471 or a DPF code (P2452 to P2455, P244A, P244B or P2463) is stored alongside, because a loaded filter changes the plan. A generic OBD2 reader shows this code, its freeze frame and standard live data. A few diesels also report exhaust or DPF pressure on a standard PID, but on most cars the pressure reading, the soot load and the regeneration history need manufacturer-level software, and only that software or a workshop can run a forced regeneration or adapt a new sensor.
  2. Find out which sensor is exhaust pressure sensor "A" on your engine: a back pressure sensor near the exhaust manifold or turbo, a sensor before the particulate filter, or on many Volkswagen group TDIs the DPF differential pressure sensor. Check the workshop information for your engine code before buying a part.
  3. Check the fuse for the sensor supply, then unplug the sensor and inspect the connector for corrosion, water and pushed-back pins.
  4. With the key on and the engine off, measure the 5 V reference and the ground at the connector. A missing reference or ground points to the wiring or the engine computer, not the sensor.
  5. Back-probe the signal wire. The signal should sit at a steady value with the engine off and rise smoothly with revs once it is running. A signal stuck near 0 V or near 5 V, or one that drops in and out, points to the circuit or the sensor.
  6. Follow the harness from the sensor, especially where it passes the turbo, exhaust pipes or DPF, and look for melted insulation or chafing. Wiggle-test it while watching the signal.
  7. If the circuit tests good, replace the sensor with the correct part for the engine code, run the sensor adaptation if the engine computer asks for one, clear the code and road-test. If soot built up while the sensor was out, a forced regeneration may be needed afterwards.

How much does P0470 cost to fix on a Volkswagen? (EUR)

Estimated repair costs for P0470 in EUR, compiled across makes. Volkswagen costs typically sit in the middle of each range.

Repair Parts Cost Labor Cost Total Estimate DIY Difficulty
Replace exhaust pressure sensor €40–€150 €30–€80 €70–€230 Easy
Clean and repair sensor connector €10–€60 €60–€180 €70–€240 Moderate
Repair sensor wiring harness section €20–€120 €120–€350 €140–€470 Professional
Adapt or relearn a new sensor with diagnostic software (where required) €0–€0 €30–€80 €30–€80 Professional
Forced DPF regeneration if soot built up meanwhile €0–€0 €60–€150 €60–€150 Professional

Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.

These codes are often seen alongside P0470 or point to related issues, on any make:

P0471VolkswagenP2452VolkswagenP2453VolkswagenP2454P2455P244AVolkswagenP244BVolkswagenP2463Volkswagen

Looking for the full P0470 reference (all makes, full diagnosis flow, complete repair cost matrix)?

See the main P0470 guide
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Diagnose P0470 on your Volkswagen

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