P2572Direct Ozone Reduction Catalyst Deterioration Sensor Circuit
General electrical fault on the DOR catalyst deterioration sensor circuit. This sensor estimates the remaining ozone-conversion capacity of the DOR coating — coating worn off the radiator surface, contaminated by salt or grime, or thermally aged. Without a valid signal the deterioration monitor is disabled.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Check engine light on Failed emissions inspection Possibly slightly increased fuel consumption Sulfur (rotten egg) smell from exhaust under load
Possible Causes
The components or conditions that trigger this code
- 1Open or shorted wiring
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.4-1.5 hours. Estimated cost: €80-€
- 2DIY possible
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly: