Holstein 2BWS0157 Disc Brake Pad Wear Sensor - Front

Front Brake Pad Wear Sensor for Audi, Porsche, Volkswagen

Holstein Parts 2BWS0157 is a front disc brake pad wear sensor for select Audi Q7, Porsche Cayenne, and Volkswagen Touareg applications. It monitors brake pad wear at the front axle and supports accurate wear-indicator function when the original sensor is due for replacement.

Key Features

• Disc brake pad wear sensor for front brake applications
• Connector shape: oval
• Connector gender: male
• Connector quantity: 1
• Terminal type: pin
• Terminal quantity: 2
• Holstein Parts 2BWS0157 replacement sensor

Product Details

Holstein Parts 2BWS0157 is built for front disc brake wear monitoring on vehicles equipped with compatible factory brake systems. This sensor is used on 2007-2015 Audi Q7, 2003-2006 and 2008-2010 Porsche Cayenne, and 2004-2018 Volkswagen Touareg front brake applications listed in the fitment data. The oval, male connector with two pin terminals supports direct replacement of the original wear sensor connection on the specified vehicles. Holstein Parts 2BWS0157 also cross-references Standard Ignition PWS197 for the same application.

What It Helps Address

• Brake pad wear warning light staying on after pad service
• Damaged or broken front brake wear sensor wiring
• Faulty pad wear signal from the front brake circuit
• Replacement needs after brake pad and rotor service
• Loss of wear-indicator function on the front axle

Installation Notes

Verify the vehicle’s brake package and front axle configuration before ordering. This sensor is listed for front positions only and is tied to specific brake setups, including Audi Q7 models without ceramic brakes, Porsche Cayenne models with the noted disc and caliper configurations, and Volkswagen Touareg models with the listed PR codes and front disc brake packages. Inspect the connector style, terminal count, and routing path against the original part before installation.

Quality Assurance

Holstein Parts supplies replacement brake sensors for the listed OE-style applications. Fitment is confirmed for the vehicles shown in the catalog data, including Audi Q7, Porsche Cayenne, and Volkswagen Touareg front brake systems.