P2002: Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
12 vehicles · 10 makes · $150-$3,500 repair
Most Reported On
P2002 is an OBD-II diagnostic trouble code meaning “Diesel Particulate Filter Efficiency Below Threshold (Bank 1).” The diesel particulate filter on Bank 1 is not capturing soot efficiently. Regeneration may be required. This code is most commonly reported on 2010-2020 Land Rover Discovery, 2014-2025 Mercedes-Benz Sprinter (Sprinter 1500, Sprinter 2500, Sprinter 3500, Sprinter 4500), and 2014-2022 Land Rover Range Rover Sport, plus 9 other vehicles, with repair costs ranging from $150 to $3,500.
Common Causes
Typical Repair Cost
Based on 12 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2002, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected (12)
FAQ
What does P2002 mean?
P2002 stands for "Diesel Particulate Filter Efficiency Below Threshold (Bank 1)." The diesel particulate filter on Bank 1 is not capturing soot efficiently. Regeneration may be required.
What are the most common causes of P2002?
The most common causes of P2002 are: DPF substrate degradation, Failed regeneration, Excessive soot loading, Faulty differential pressure sensor, Oil contamination of DPF. The specific cause varies by vehicle.
How much does it cost to fix P2002?
Repair costs for P2002 range from $150 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P2002?
Au7o has documented P2002 across 12 vehicle models from 10 manufacturers: Audi, Citroën, GMC, Land Rover, Mercedes-Benz, Peugeot, Renault, Skoda, Suzuki, Volkswagen.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.