Standard Ignition ALS1856 ABS Wheel Speed Sensor - Front

Overview of Standard Ignition ALS1856 ABS Wheel Speed Sensor

The Standard Ignition ALS1856 ABS Wheel Speed Sensor is designed for precise wheel speed monitoring on select Mercedes-Benz models. This sensor ensures reliable ABS system performance by providing accurate data from the spindle mounting location.

• Compatible with Mercedes-Benz R63 AMG, R320, R350, and R500 models
• Mounting type: bolt mount with one bolt hole for secure installation
• Harness length of 32 inches (812.8 mm) for flexible routing
• Connector features a female oval shape with one connector and two male terminals
• Terminal type: pin terminals for reliable electrical connection
• Mounting location: spindle for direct wheel speed measurement
• Mounting hardware not included

Detailed Product Description

The Standard Ignition ALS1856 ABS Wheel Speed Sensor is engineered to deliver consistent and accurate wheel speed data critical for the anti-lock braking system on Mercedes-Benz vehicles such as the R63 AMG, R320, R350, and R500. Featuring a bolt mount design with a single bolt hole, this sensor mounts directly to the spindle, ensuring stable positioning and optimal sensor performance. The harness length of 32 inches (812.8 mm) provides ample length for installation without strain or excessive slack.

The sensor’s electrical connector is female with an oval shape, housing two male pin terminals, which facilitates a secure and precise connection to the vehicle’s wiring harness. This configuration supports reliable signal transmission necessary for ABS functionality. Note that mounting hardware is not included, so appropriate bolts should be sourced separately during installation.

Common Applications and Issues Addressed

• Restores ABS functionality by replacing faulty or damaged wheel speed sensors
• Eliminates ABS warning lights caused by sensor failure on Mercedes-Benz R63 AMG, R320, R350, and R500
• Improves braking system responsiveness and safety through accurate wheel speed data
• Resolves intermittent ABS sensor signal loss due to wiring or connector issues
• Prevents uneven braking and wheel lockup by maintaining proper sensor operation

Installation Notes and Tips

• Ensure the mounting location on the spindle is clean and free of debris before installation
• Use the correct bolt size for the single bolt hole to secure the sensor firmly
• Verify the connector orientation matches the female oval shape with two male pin terminals
• Route the 32-inch harness carefully to avoid contact with moving parts or heat sources
• Test the ABS system after installation to confirm proper sensor operation

Quality Assurance and Warranty

Standard Ignition manufactures the ALS1856 ABS Wheel Speed Sensor to meet or exceed OEM specifications for fit, form, and function. While mounting hardware is not included, the sensor is built to provide reliable performance in demanding automotive environments. Please consult the product documentation or Standard Ignition’s warranty policy for specific coverage details.