P252AEngine Oil Quality Sensor Circuit
General electrical fault on the engine oil quality sensor — typically a capacitive/dielectric sensor that estimates oil aging from permittivity, viscosity proxies and conductivity. With no valid reading the dynamic service-interval algorithm falls back to the fixed-interval default.
Can I keep driving? Yes
You can keep driving normally. Schedule a check soon so emissions and performance are not affected.
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.
Possible Causes
The components or conditions that trigger this code
- 1Open or shorted wiring to the sensor Failed sensor electrode after long use
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.5-2 hours. Estimated cost: €120-€
- 2Professional repair recommended
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: