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 1 Renault model — most commonly on Kadjar. 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 $200 to $2,000, 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 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.
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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 1 model.
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 $200 to $2,000, depending on the specific model and root cause.
Which Renault models have P2002 documented?▼
Au7o has documented P2002 on 1 Renault model: Kadjar.