Global Parts 1813574 Disc Brake Pad Wear Sensor - Rear

Brake Wear Sensor for Audi Rear Applications

The Global Parts 1813574 disc brake pad wear sensor is a direct replacement for rear brake wear monitoring on select 2017-2018 Audi models. It is built to provide accurate pad wear detection so the driver receives a warning when brake pads thin to the service limit.

Compatible With 2017-2018 Audi A4, A4 allroad, A4 Quattro, and Q7 rear brake applications, plus 2018 Audi S4 and S5 rear applications. The 1813574 sensor uses a 2-wire layout with a blade terminal design, oblong connector shape, female connector gender, male terminal gender, and an included wiring harness for OE-style connection.

Key Features

• Direct replacement brake pad wear sensor for rear applications
• Fits 2017-2018 Audi A4, A4 allroad, A4 Quattro, and Q7 rear
• Fits 2018 Audi S4 and S5 rear
• 2-wire construction with blade terminals
• Oblong connector with female connector gender and male terminal gender
• Wiring harness included for proper sensor connection
• Engineered for brake wear detection and service warning output

Detailed Description

Global Parts 1813574 is a disc brake pad wear sensor made for rear brake systems on select Audi vehicles. It monitors brake pad thickness and signals when the pads have worn enough to require replacement, helping maintain consistent braking performance and timely service intervals. This part cross-references Holstein 2BWS0434 for the same application.

Use this sensor on 2017-2018 Audi A4, 2017-2018 Audi A4 allroad, 2017-2018 Audi A4 Quattro, 2017-2018 Audi Q7, 2018 Audi S4, and 2018 Audi S5 rear brake setups. The 1813574 part number is also referenced in OE and aftermarket catalogs for these rear brake wear sensor applications.

What It Helps Address

• Brake wear warning light triggered by a failed sensor
• Inaccurate pad wear detection at the rear axle
• Broken or damaged brake pad wear sensor wiring
• Loss of brake service alert function after pad replacement
• Fitment issues from an incorrect rear brake wear sensor

Installation Notes and Tips

Confirm rear position fitment before installation and compare the connector shape, terminal style, and wire count to the original sensor. Inspect the harness routing and connector locking points during replacement to help prevent chafing or poor electrical contact. After installation, verify that the brake wear warning system resets and functions correctly with the vehicle’s service procedure.

Quality Assurance

Global Parts supplies this brake wear sensor as a direct replacement part for Audi rear brake applications. The 1813574 is built to match the listed fitment and electrical connection style for reliable brake wear monitoring.