Keep an early eye on engine lubrication with the Walker Products Engine Oil Pressure Switch 256-1150. This OE-replacement switch monitors engine oil pressure and signals the ECU or driver when levels fall below safe operating thresholds. It's a direct-fit replacement across a wide range of Audi models, including the 2020-2021 A6 Allroad, 2019-2021 A6 Quattro, 2019-2021 A7 Sportback, 2015-2021 A8 Quattro, 2018-2021 S4, S5 and SQ5, and many more — see the "Vehicles it fits" section for the full application and engine list.
- OE Replacement Calibration: Matches original specs for pressure activation point, thread pitch, and electrical response.
- Exact OE Fit: Threads into the factory location using original threads and connectors, with no modifications required.
- Engineered for Harsh Conditions: Built with high-temperature and oil-resistant materials to resist heat, oil exposure, and vibration.
- Monitors Oil Pressure Levels: Activates the dashboard warning light or ECU input when oil pressure drops below safe limits.
Signs the original switch 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 restores that early-warning function, helping protect vital components by alerting the driver or system to low-pressure conditions.
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Frequently Asked Questions
What does this oil pressure switch do?
It monitors engine oil pressure and signals the ECU or driver, activating the dashboard warning light or ECU input when pressure falls below safe operating thresholds.
Will the 256-1150 fit my vehicle?
It's a direct-fit replacement for many Audi models, such as the 2020-2021 A6 Allroad and 2018-2021 S4. Check the "Vehicles it fits" section to confirm your exact year, make, and model.
Does it require modifications to install?
No. It threads into the factory location using the original threads and connectors, so no modifications are required.
What are signs this switch may need replacing?
Common signs include an oil warning light that flickers, false warnings, or no signal under actual low-pressure conditions. Diagnose the cause before replacing.
Is this an OE-quality part?
Yes. It's an OE-replacement switch calibrated to match original specs for pressure activation point, thread pitch, and electrical response, built with high-temperature and oil-resistant materials.
