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 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 is a emissions-related diagnostic trouble code classified as high severity. When your vehicle's ECU detects this condition, it stores P2002 and illuminates the check engine light.
If your vehicle has triggered P2002, you may notice one or more of these symptoms:
Here are the most common causes of P2002, ranked by how likely they are to be the culprit:
No - address this immediately. 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.
Follow these steps to pinpoint the root cause of P2002:
Repair costs for P2002 vary depending on the root cause and your vehicle. Here are typical estimates:
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
P2002 behaves differently depending on your vehicle. Select your car below for model-specific causes, known issues, and adjusted cost estimates:
These codes are often seen alongside P2002 or indicate related issues:
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.
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.
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.
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.
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.
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