Monitor engine lubrication pressure with the Walker Products Engine Oil Pressure Switch 256-1144, an OE-replacement switch that reads oil pressure and signals the ECU or dashboard warning light when levels fall below safe limits. It drops in as a direct-fit replacement for a wide range of Audi and Volkswagen models, including the 2018-2023 Volkswagen Atlas, 2012-2018 Volkswagen Passat, 2009-2016 Volkswagen CC, 2011-2015 Volkswagen Touareg, 2009-2018 Audi A6 Quattro, 2009-2017 Audi Q5, and 2011-2015 & 2017-2019 Audi Q7 — see the Buyer's Guide tab for the full list of applications.
- OE Replacement Calibration: Matches original specs for pressure activation point, thread pitch, and electrical response.
- Engineered for Harsh Conditions: Built to resist high temperatures, oil exposure, and vibration.
- Monitors Oil Pressure: Activates the dashboard warning or ECU input when oil pressure falls below safe operating thresholds.
- Exact OE Fit: Threads into the factory location using the original threads and connector with no modifications.
Built with high-temperature, oil-resistant materials for consistent performance under prolonged engine exposure, the switch threads directly into the factory port — typically the engine block or oil filter housing. Signs the original may need replacing include an oil light that flickers, false warnings, or no signal under actual low-pressure conditions; if a failed pressure switch is the cause, this unit replaces it. Diagnose the cause before replacing.
