Automotive knock sensor designed to detect abnormal combustion and enable ECU timing corrections for petrol engines. Lemark Knock Sensor keeps engines running smoothly and lowers the risk of knock-related damage for drivers and garages. Is this the correct fit for the Opel, Vauxhall or Chevrolet model in your garage?
⚡ At a Glance
- • Detection Accuracy: Vibration-based knock detection relays fast signals to the ECU for timing correction
- • Best for: Owners and mechanics replacing knock sensors on compatible Opel, Vauxhall and Chevrolet petrol engines
- • Not ideal for: Diesel engines and vehicles not listed in the compatibility information
Detects engine knocking and sends signals to the engine control unit for ignition timing adjustment. Brown housing and included cable allow straightforward fitment and connection.
Engine protection - thanks to knock detection
Piezoelectric-style vibration sensing picks up pre-detonation events and converts the signal into an electrical pulse for the engine control unit to read. The ECU then alters ignition timing and fuel mixture as required.
Prevents knock-related damage and helps reduce component wear, extending engine life when correct combustion is maintained.
Improved fuel efficiency - with ECU timing adjustment
Rapid feedback from the sensor allows the ECU to refine ignition timing under changing load and throttle conditions, keeping combustion closer to its ideal timing window.
More consistent combustion reduces fuel waste and prevents power loss, resulting in steadier acceleration and better everyday economy.
Simpler replacement fitting - thanks to included cable and compatible design
Connector and mounting design match a range of Opel, Vauxhall and Chevrolet petrol models, and the supplementary cable is supplied for direct connection into the engine harness.
Eases DIY swaps and workshop replacements by reducing the need for additional wiring or adaptor parts, saving time during installation.
✨ The 4 Key Reasons for Lemark Knock Sensor
- Direct-fit compatibility - Reduces installation labour by matching factory mounting and connectors
- Included cable - Enables plug-and-play connection without additional wiring or adapters
- Lightweight construction - At 0.048 kg, minimal added weight under the bonnet
- Brown housing - Discreet under-bonnet colour, making the replacement blend with existing components
📋 Technical Details at a Glance
- Product Type: Knock Sensor
- Brand: Lemark
- Product ID: B0FLY2PT1W
- Compatible Models: Opel Astra (2010-2015), Vauxhall Astra (2010-2015), Chevrolet Orlando (2011-2024), Opel Mokka / Mokka X (2013-2024), Chevrolet Cruze (2009-2024), Chevrolet Aveo (2011-2024), Opel Zafira Tourer (2011-2024), Vauxhall Zafira (2011-2018), Opel Insignia (2008-2017)
- Drive: FWD, AWD
❓ Frequently Asked Questions
Q: Which vehicles are compatible with this knock sensor?
A: Compatibility includes Opel Astra (2010-2015), Vauxhall Astra (2010-2015), Chevrolet Orlando (2011-2024), Opel Mokka / Mokka X (2013-2024), Chevrolet Cruze (2009-2024), Chevrolet Aveo (2011-2024), Opel Zafira Tourer (2011-2024), Vauxhall Zafira (2011-2018) and Opel Insignia (2008-2017).
Q: What role does the knock sensor perform?
A: Knock detection senses abnormal combustion and sends electrical signals to the engine control unit, which adjusts ignition timing and fuel mixture to prevent knocking and related engine damage.
Q: Is a cable included and how heavy is the unit?
A: Supplementary information notes a cable is supplied with the part, and the net weight is 0.048 kg.
🏆 Our Verdict
Suitable for motorists and workshops needing a direct-fit replacement for listed Opel, Vauxhall and Chevrolet petrol engines. Lightweight construction with a supplied cable and brown housing supports quick fitting while enabling ECU timing corrections to protect the engine. While upfront cost varies, the sensor's role in preventing knock-related repairs offers clear long-term value.
