Standard Ignition ALS404 ABS Wheel Speed Sensor - Rear Left

Reliable ABS Wheel Speed Sensor for Mercedes-Benz ML350 and ML500

The Standard Ignition ALS404 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for your Mercedes-Benz ML350 or ML500. Engineered to meet OEM specifications, this sensor ensures consistent performance and reliable ABS system operation.

• Terminal Quantity: 2 for secure electrical connections
• Connector Gender: Female for proper mating with vehicle harness
• Terminal Gender: Male pin type terminals
• Single oval-shaped connector for precise fitment
• Harness Length: 23 inches (580 mm) to accommodate wheel mounting location
• Mounting Location: Wheel with one bolt hole for straightforward installation
• Hardware not included

Detailed Product Description

The Standard Ignition ALS404 ABS Wheel Speed Sensor is specifically designed for the wheel mounting location on Mercedes-Benz ML350 and ML500 models. Featuring a 23-inch harness length and a single oval-shaped female connector, this sensor integrates seamlessly with the vehicle’s ABS system. The sensor includes two terminals—male pin type—to ensure a secure and reliable electrical connection. Its single bolt hole mounting design simplifies installation while maintaining a stable fit. This sensor is engineered to provide accurate wheel speed readings, which are critical for the proper functioning of the ABS and traction control systems.

Common Applications and Problem Resolution

• Restores ABS warning light functionality by providing accurate wheel speed data
• Eliminates erratic ABS or traction control system behavior
• Prevents false ABS activation during braking
• Addresses wheel speed sensor failure codes specific to Mercedes-Benz ML350 and ML500
• Improves overall vehicle stability and safety during braking

Installation Notes and Tips

When installing the Standard Ignition ALS404 sensor, ensure the connector is fully seated and locked to prevent electrical issues. Verify the sensor is mounted securely using the single bolt hole at the wheel location. Avoid twisting or stretching the 23-inch harness to maintain sensor integrity. Since hardware is not included, retain original mounting bolts or source appropriate replacements. Proper installation will help maintain accurate ABS system performance.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The ALS404 ABS Wheel Speed Sensor undergoes rigorous quality control to ensure durability and reliable operation. Please refer to Standard Ignition’s warranty policy for specific coverage details.