P2002 on Renault
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
P2002 on Renault vehicles indicates diesel particulate filter efficiency below threshold (bank 1). Au7o has documented this code across 3 Renault models — most commonly on Captur, Kadjar, Koleos. P2002 indicates that the diesel particulate filter (DPF) on bank 1 is performing below its required efficiency threshold. The DPF captures and stores soot from diesel exhaust and periodically burns it off (regeneration); the engine computer monitors exhaust pressure across the filter and other data to judge how well it's trapping and clearing soot. When that efficiency falls too low, this code sets. Symptoms can include reduced power, a clogged-filter warning, frequent or failed regenerations, and increased emissions. Typical repair costs on Renault range from $150 to $2,200, depending on the specific model and root cause.
Common Causes of P2002
- •Clogged or damaged diesel particulate filter
- •Failed or incomplete DPF regeneration (mostly short trips)
- •Faulty differential (DPF) pressure sensor or hoses
- •Faulty exhaust temperature sensor(s)
- •Exhaust leak before or across the DPF
- •Engine running issues causing excess soot (injectors, EGR, turbo)
- •Use of incorrect (non-low-ash) engine oil or fuel quality issues
P2002 on Renault by Model
Renault Captur(1 issue)
- 1.5 dCi DPF/EGR Clogging and AdBlue SCR Faults on Short-Trip Cars2013-2021
The 1.5 dCi (K9K) diesel Captur is prone to diesel particulate filter clogging when used mainly for short urban journeys that never let the filter complete an active regeneration; the EGR valve typically sools up at the same time, compounding the airflow restriction. After repeated failed regenerations the ECU forces limp mode with 'Check Anti-Pollution System' warnings. On later Euro 6d Blue dCi versions, AdBlue/SCR faults — injector crystallisation, NOx sensor errors and incorrect urea level readings — additionally trigger 'No start in xxx km' countdown restrictions.
Renault Kadjar(1 issue)
- DPF Regeneration Failure2015-2022
The Kadjar diesel models experience frequent DPF regeneration failures, particularly in vehicles used primarily for short urban commutes. The regeneration process requires sustained load that urban driving cannot provide.
Renault Koleos(1 issue)
- 2.0 dCi diesel particulate filter (DPF) blockage2008-2020
The 2.0 dCi diesel Koleos (130/150/175 hp variants) is prone to DPF clogging, especially when driven mainly on short, low-speed trips that never allow the filter to reach regeneration temperature. Symptoms include reduced power / limp mode, visible smoke, and a DPF warning light. Faulty differential pressure or exhaust temperature sensors can worsen or falsely trigger the problem, and a botched dealer forced-regeneration has in some cases destroyed the filter outright.
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View P2002 across all makes →Frequently Asked Questions
What does P2002 mean on Renault?▼
P2002 stands for "Diesel Particulate Filter Efficiency Below Threshold (Bank 1)." P2002 indicates that the diesel particulate filter (DPF) on bank 1 is performing below its required efficiency threshold. The DPF captures and stores soot from diesel exhaust and periodically burns it off (regeneration); the engine computer monitors exhaust pressure across the filter and other data to judge how well it's trapping and clearing soot. When that efficiency falls too low, this code sets. Symptoms can include reduced power, a clogged-filter warning, frequent or failed regenerations, and increased emissions. On Renault specifically, this code is documented across 3 models.
What causes P2002 on Renault vehicles?▼
Common causes on Renault: Clogged or damaged diesel particulate filter, Failed or incomplete DPF regeneration (mostly short trips), Faulty differential (DPF) pressure sensor or hoses, Faulty exhaust temperature sensor(s), Exhaust leak before or across the DPF. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2002 on a Renault?▼
Repair costs on Renault range from $150 to $2,200, depending on the specific model and root cause.
Which Renault models have P2002 documented?▼
Au7o has documented P2002 on 3 Renault models: Captur, Kadjar, Koleos.