Bosch 003-153-86-28 64 Ignition Knock Sensor - 64

The Bosch 003-153-86-28 64 is an OEM-quality knock sensor designed to detect engine knock and detonation in real-time. This sensor monitors high-frequency engine vibrations characteristic of abnormal combustion and transmits precise signals to the engine control unit (ECU) for optimal ignition timing adjustment.

Key Features:

• OEM replacement sensor manufactured by Bosch to exact specifications
• Detects structural-borne vibrations caused by engine knock and pre-ignition
• Highly accurate piezoelectric sensing element for reliable performance
• Helps prevent engine damage by allowing ECU to adjust timing parameters
• Ensures optimal fuel efficiency and engine performance
• Direct fit replacement for Mercedes-Benz applications

This knock sensor plays a critical role in modern engine management systems by continuously monitoring combustion quality. When knock is detected, the sensor signals the ECU to retard ignition timing, protecting the engine from potentially damaging detonation while maintaining maximum performance and fuel economy.