Maintain peak engine performance and prevent detonation damage with this Bosch Knock Sensor (Part # 0261231146, OEM # 030905377D), designed for select Audi and Volkswagen applications. This sensor detects engine knock or pinging by monitoring vibrations caused by abnormal combustion, sending real-time data to the ECU to optimize ignition timing and fuel delivery.
As an OE supplier to Audi and VW, Bosch ensures this knock sensor meets strict quality and performance standards for long-lasting reliability and precise operation. Faulty or worn knock sensors can result in power loss, poor fuel economy, and potential engine damage—replace yours today with this high-quality Bosch unit.
Key Features:
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Part Numbers:
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Bosch: 0261231146
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OEM: 030905377D
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Function: Detects engine knock/detonation and signals the ECU
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Restores proper ignition timing and combustion control
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Plug-and-play fit for many Audi and VW engines
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Genuine Bosch quality – original equipment manufacturer for VAG vehicles
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Durable construction to withstand heat and vibration in engine bay
Fitment Includes (but not limited to):
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Audi A3, A4, TT (various models with 1.8T engines)
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Volkswagen Golf, Jetta, Passat, Beetle (select 1.8T & 2.0L models)
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Always verify compatibility with your vehicle using OEM part number 030905377D
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