Standard Ignition ALS525 ABS Wheel Speed Sensor - Rear Left

Reliable ABS Wheel Speed Sensor for Audi A4 Quattro and S4

The Standard Ignition ALS525 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for your Audi A4 Quattro or S4. Engineered to meet OEM specifications, this sensor ensures proper ABS function and vehicle stability.

• Connector Quantity: 3 for secure electrical connection
• Harness Length: 44 inches (1120 mm) for flexible installation
• Mounting Location: Wheel for precise speed measurement
• Number of Bolt Holes: 2 for stable and secure mounting
• Terminal Type: Blade terminals for reliable electrical contact

Detailed Product Description

The Standard Ignition ALS525 ABS Wheel Speed Sensor is specifically designed for Audi A4 Quattro and S4 models, providing accurate and consistent wheel speed readings essential for the anti-lock braking system. Featuring a 44-inch (1120 mm) harness length, this sensor offers ample reach for installation at the wheel mounting location. The sensor includes three connectors and two bolt holes, ensuring a secure fit and reliable electrical connection through blade-type terminals. This part is engineered to maintain the integrity of your vehicle’s ABS system, contributing to safer braking performance under various driving conditions.

Common Applications and Problem Resolution

• Restores ABS warning light functionality by providing accurate wheel speed data
• Eliminates erratic ABS activation or failure during braking
• Prevents traction control system errors related to faulty wheel speed input
• Addresses uneven braking or wheel lock-up issues
• Resolves diagnostic trouble codes (DTCs) related to wheel speed sensor faults

Installation Notes and Tips

• Ensure the mounting location on the wheel is clean and free of debris before installation
• Verify the harness length is sufficient for your vehicle’s routing requirements
• Use the two bolt holes to securely fasten the sensor to prevent movement
• Confirm the blade terminals are properly connected to avoid electrical faults
• Consult the vehicle’s service manual for torque specifications and sensor alignment

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The ALS525 ABS Wheel Speed Sensor undergoes rigorous quality control testing to guarantee fitment and function for Audi A4 Quattro and S4 models. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.