Global Parts 1811861 Ignition Knock (Detonation) Sensor

Reliable Ignition Knock Sensor for BMW 318i, 318is, and 318ti

The Global Parts 1811861 Ignition Knock (Detonation) Sensor is designed to accurately detect engine knock and help optimize ignition timing for BMW 318i, 318is, and 318ti models. This sensor features a 5.5-inch wiring harness and a rectangular female connector to ensure a secure and precise fit.

• Wiring harness length: 5.5 inches for flexible installation
• Blade terminal type with 2 terminals for reliable electrical connection
• Single rectangular female connector for compatibility with factory wiring
• Wiring harness included for ease of replacement
• Mounting hardware not included

Product Details and Specifications

The Global Parts 1811861 ignition knock sensor is engineered to detect detonation or knocking in the engine, allowing the vehicle’s engine control unit (ECU) to adjust ignition timing accordingly. It comes with a 5.5-inch wiring harness that provides sufficient length for installation in the engine bay of BMW 318i, 318is, and 318ti vehicles. The sensor uses a blade terminal type with two terminals, ensuring a stable electrical connection. The connector is a single rectangular female type, designed to match the original equipment manufacturer (OEM) specifications for these BMW models. This sensor does not include mounting hardware, so existing hardware should be reused or sourced separately.

Common Applications and Problem Resolution

• Detects engine knock or detonation to prevent engine damage
• Helps improve engine performance and fuel efficiency by optimizing ignition timing
• Resolves engine misfire or rough idle issues related to faulty knock sensor signals
• Prevents check engine light activation caused by knock sensor failure
• Supports emission control by maintaining proper combustion timing

Installation Notes and Tips

When installing the Global Parts 1811861 ignition knock sensor on BMW 318i, 318is, or 318ti models, ensure the wiring harness is routed away from high-heat areas to prevent damage. Verify the rectangular female connector securely mates with the vehicle’s wiring harness. Since mounting hardware is not included, retain the original sensor mounting bolts or acquire compatible hardware before installation. Proper torque specifications should be followed to avoid sensor damage or improper function.

Quality Assurance and Warranty

Global Parts manufactures this ignition knock sensor to meet or exceed OEM standards for fit and function on BMW 318i, 318is, and 318ti vehicles. The part number 1811861 is backed by quality control processes to ensure reliable performance. Please refer to Global Parts’ warranty policy for specific coverage details.