Skip to content
Skanyx
DTC/P2002

P2002 : Diesel Particulate Filter Efficiency Below Threshold (Bank 1)

Quick Answer
Elevee GraviteConduite deconseilleeEmissions

P2002 means your diesel particulate filter is clogged with soot beyond the acceptable level and cannot clean itself through normal regeneration. The DPF traps harmful soot particles from diesel exhaust, but when it becomes overloaded, engine performance drops and backpressure builds to dangerous levels.

Cout de reparation estimeDe 60 € a 3600 €+, varie selon le vehicule

Que signifie P2002 ?

P2002 means your diesel particulate filter is clogged with soot beyond the acceptable level and cannot clean itself through normal regeneration. The DPF traps harmful soot particles from diesel exhaust, but when it becomes overloaded, engine performance drops and backpressure builds to dangerous levels.

P2002 est un code defaut lie a emissions, classe en gravite high. Lorsque le calculateur de ton vehicule detecte cette condition, il enregistre P2002 et allume le voyant moteur.

Quels sont les symptomes de P2002 ?

Si ton vehicule a declenche P2002, tu peux remarquer un ou plusieurs de ces symptomes :

  • DPF warning light illuminated on dashboard
  • Check engine light on
  • Noticeable loss of power and acceleration
  • Increased fuel consumption
  • Excessive black or white smoke from exhaust
  • Vehicle entering limp mode
  • Strong exhaust smell in or around the cabin
  • Engine fan running constantly at high speed

Quelles sont les causes de P2002 ?

Voici les causes les plus courantes de P2002, classees selon la probabilite qu'elles soient en cause :

eleveeFrequent short journeys preventing passive DPF regeneration
eleveeFailed active regeneration attempts due to driving patterns
moyenneFaulty DPF differential pressure sensor
moyenneFaulty DPF temperature sensor
moyenneEGR valve malfunction increasing soot production
moyenneWorn fuel injectors causing incomplete combustion
faibleUsing incorrect engine oil (non low-SAPS specification)
faibleDPF end of life (exceeded ash capacity)

Peut-on rouler sans risque avec P2002 ?

Non, regle ca immediatement. A blocked DPF can cause excessive exhaust backpressure that damages the turbocharger and engine. Continued driving without a successful regeneration may lead to a forced engine derate or complete DPF failure requiring expensive replacement.

Comment diagnostique-t-on P2002 ?

Suis ces etapes pour identifier la cause profonde de P2002 :

  1. Read freeze frame data and check the DPF soot loading percentage with a diagnostic scanner. Values above 80-85% indicate a severely blocked filter. Also note the km since last successful regeneration.
  2. Check the DPF differential pressure sensor readings with the engine running. Compare upstream versus downstream exhaust pressure. Excessively high differential pressure confirms a physical blockage, while normal pressure with a P2002 code suggests a sensor fault.
  3. Inspect the DPF temperature sensors (upstream and downstream). The upstream sensor should read 400-600 degrees Celsius during active regeneration. If temperatures are too low, the regeneration process cannot burn off soot effectively.
  4. Check for additional codes related to the EGR system, turbocharger, or fuel injectors. A malfunctioning EGR valve or leaking injector produces excess soot that overloads the DPF faster than it can regenerate.
  5. Attempt a forced (stationary) regeneration using a dealer-level diagnostic tool. If the regeneration completes and pressure drops to normal, the DPF is still functional but the driving pattern was preventing passive regeneration. If it fails, the DPF may need professional chemical cleaning or replacement.
  6. Check the engine oil specification. Diesel engines with DPFs require low-SAPS oil (typically ACEA C2 or C3). Standard oil produces ash that permanently blocks DPF cells and cannot be burned off during regeneration.

Combien coute la reparation de P2002 ?

Les couts de reparation de P2002 varient selon la cause profonde et ton vehicule. Voici des estimations courantes :

Reparation Cout des pieces Cout de main-d'oeuvre Estimation totale Difficulte en autonomie
Forced DPF regeneration (diagnostic tool) €0–€0 €60–€150 €60–€150 Professionnel
DPF professional cleaning (chemical or thermal) €30–€80 €150–€400 €180–€480 Professionnel
DPF differential pressure sensor replacement €30–€120 €40–€120 €70–€240 Moderee
DPF temperature sensor replacement €25–€100 €40–€120 €65–€220 Moderee
EGR valve replacement €80–€350 €100–€300 €180–€650 Moderee
DPF replacement (new OEM) €800–€3000 €200–€600 €1000–€3600 Professionnel

Prix estimes au March 2026. Les couts varient selon la region, le vehicule et le garage.

P2002 sur des vehicules specifiques

P2002 se comporte differemment selon ton vehicule. Selectionne ta voiture ci-dessous pour des causes propres au modele, les problemes connus et des estimations de couts ajustees :

Volkswagen

P2002 sur Volkswagen Golf

2005-2024

The Golf TDI (1.6 and 2.0 diesel) is the most commonly affected model in the EU. The EA189 and EA288 engines are prone to DPF blockage when used primarily for city driving. VW's DPF regeneration requires specific conditions: engine warm, speed above 60 km/h, and sufficient fuel. The 1.6 TDI (CAYC engine) is particularly problematic as its lower exhaust temperatures make passive regeneration more difficult than the 2.0 TDI.

Quelles sont les causes de P2002 sur une Volkswagen Golf ?

Volkswagen Golf1.6 TDI (CAYC) low exhaust temperature preventing passive regen
Volkswagen GolfEGR valve failure increasing soot loading
Volkswagen GolfDPF differential pressure sensor hose blockage or cracking
BMW

P2002 sur BMW 3 Series

2005-2024

The E90/F30/G20 320d and 330d are widespread diesel models in Europe that commonly trigger P2002. BMW uses an additive-free DPF system, meaning the filter relies entirely on exhaust temperature for regeneration. The N47 engine (2007-2014) is particularly prone to DPF issues due to its timing chain problems, which can cause rough running and increased soot production.

Quelles sont les causes de P2002 sur une BMW 3 Series ?

BMW 3 SeriesN47 engine timing chain wear increasing soot output
BMW 3 SeriesSwirl flap failure causing incomplete combustion
BMW 3 SeriesDPF pressure sensor pipes blocked with soot

Cout de reparation de P2002 pour BMW 3 Series

Couts estimes pour les proprietaires de BMW 3 Seriesajuste a la hausse par rapport a la moyenne en raison du prix des pieces specifiques a BMW

Reparation Cout des pieces Cout de main-d'oeuvre Estimation totale Difficulte en autonomie
Forced DPF regeneration (diagnostic tool) €0–€0 €78–€195 €78–€195 Professionnel
DPF professional cleaning (chemical or thermal) €39–€104 €195–€520 €234–€624 Professionnel
DPF differential pressure sensor replacement €39–€156 €52–€156 €91–€312 Moderee
DPF temperature sensor replacement €33–€130 €52–€156 €85–€286 Moderee
EGR valve replacement €104–€455 €130–€390 €234–€845 Moderee
DPF replacement (new OEM) €1040–€3900 €260–€780 €1300–€4680 Professionnel

Prix estimes au March 2026. Les couts varient selon la region, le vehicule et le garage.

Peugeot

P2002 sur Peugeot 308

2007-2024

Peugeot 308 diesel models use an additive-based DPF system (Eolys/Infineum) that injects a cerium-based additive into the fuel to lower the soot combustion temperature. This system requires periodic additive refills (every 120,000 km or when the additive tank light appears). Running out of additive prevents regeneration entirely. The additive tank is located under the car near the fuel tank.

Quelles sont les causes de P2002 sur une Peugeot 308 ?

Peugeot 308Eolys/Infineum DPF additive tank empty
Peugeot 308Additive injection pump failure
Peugeot 308DPF temperature sensor failure on 1.6 HDi

Cout de reparation de P2002 pour Peugeot 308

Couts estimes pour les proprietaires de Peugeot 308ajuste a la hausse par rapport a la moyenne en raison du prix des pieces specifiques a Peugeot

Reparation Cout des pieces Cout de main-d'oeuvre Estimation totale Difficulte en autonomie
Forced DPF regeneration (diagnostic tool) €0–€0 €66–€165 €66–€165 Professionnel
DPF professional cleaning (chemical or thermal) €33–€88 €165–€440 €198–€528 Professionnel
DPF differential pressure sensor replacement €33–€132 €44–€132 €77–€264 Moderee
DPF temperature sensor replacement €28–€110 €44–€132 €72–€242 Moderee
EGR valve replacement €88–€385 €110–€330 €198–€715 Moderee
DPF replacement (new OEM) €880–€3300 €220–€660 €1100–€3960 Professionnel

Prix estimes au March 2026. Les couts varient selon la region, le vehicule et le garage.

Skoda

P2002 sur Skoda Octavia

2006-2024

The Octavia TDI shares its DPF system with the VW Golf TDI. The 1.6 TDI and 2.0 TDI engines are affected. The DPF on the 1.6 TDI is positioned further from the engine than on the 2.0 TDI, meaning it takes longer to reach regeneration temperature. Skoda recommends a 30-minute motorway drive every 300-500 km to maintain DPF health.

Quelles sont les causes de P2002 sur une Skoda Octavia ?

Skoda Octavia1.6 TDI low exhaust temperature from distant DPF placement
Skoda OctaviaDifferential pressure sensor hose degradation
Skoda OctaviaEGR cooler failure increasing particulate production

Cout de reparation de P2002 pour Skoda Octavia

Couts estimes pour les proprietaires de Skoda Octaviaajuste a la baisse par rapport a la moyenne en raison du prix des pieces specifiques a Skoda

Reparation Cout des pieces Cout de main-d'oeuvre Estimation totale Difficulte en autonomie
Forced DPF regeneration (diagnostic tool) €0–€0 €57–€143 €57–€143 Professionnel
DPF professional cleaning (chemical or thermal) €29–€76 €143–€380 €171–€456 Professionnel
DPF differential pressure sensor replacement €29–€114 €38–€114 €67–€228 Moderee
DPF temperature sensor replacement €24–€95 €38–€114 €62–€209 Moderee
EGR valve replacement €76–€333 €95–€285 €171–€618 Moderee
DPF replacement (new OEM) €760–€2850 €190–€570 €950–€3420 Professionnel

Prix estimes au March 2026. Les couts varient selon la region, le vehicule et le garage.

Ces codes apparaissent souvent avec P2002 ou indiquent des problemes connexes :

P2003P244AP244BP2463P246CP246D

Questions frequentes sur P2002

What does P2002 mean on a diesel car?

P2002 means your diesel particulate filter (DPF) is clogged with soot and is not filtering efficiently. The DPF captures harmful soot from diesel exhaust and periodically burns it off through a process called regeneration. When this process fails repeatedly, soot accumulates beyond the threshold and this code is set.

Can I fix P2002 by driving on the motorway?

Sometimes. A sustained motorway drive at 2500-3000 RPM for 20-30 minutes can trigger passive regeneration and burn off soot. However, if the DPF is severely blocked (above 80% soot load), a forced regeneration with a diagnostic tool is usually needed instead.

How much does DPF replacement cost?

A new OEM DPF costs 800-3000 EUR depending on the vehicle, plus 200-600 EUR for fitting. Professional DPF cleaning (150-480 EUR) is a much cheaper alternative and can restore the filter if it is not physically damaged or ash-saturated.

Why does my DPF keep blocking?

The most common reason is driving habits. Short trips, city-only driving, and low engine loads prevent the exhaust from reaching the 500-600 degree Celsius temperature needed for regeneration. Other causes include faulty sensors, EGR problems, worn injectors, or using the wrong engine oil.

Is it legal to remove the DPF in Europe?

No. DPF removal or deletion is illegal in all EU countries. Vehicles with removed DPFs will fail emissions testing (MOT/TUV/ITV/CT) and can result in significant fines. The vehicle may also be refused insurance cover.

Lis nos guides detailles

Skanyx

Scanne ta voiture avec Skanyx pour diagnostiquer P2002

Branche un adaptateur OBD2 Bluetooth standard, scanne les codes et obtiens un diagnostic par IA avec niveaux de gravite et estimations des couts de reparation.

Telecharger Skanyx