The Audi A4 brake caliper is a major part in the assembly of brake components at each wheel of your vehicle. Working in conjunction with the brake pads and brake disc, the A4 brake caliper produces the friction that brings your vehicle to a safe and controlled stop when you apply the brakes. With pressure applied to its piston from hydraulic brake fluid, the Audi A4 brake caliper squeezes a pair of brake pads into contact with the brake disc, producing friction as they grip the disc with their strong friction lining, stopping the motion of the wheel.

The A4 brake caliper is a durable and dependable component, but over time, the wear and tear of daily driving can take its toll, reducing the efficiency of the Audi A4 brake caliper. Exposed to the moisture, road salt and debris of the road, the A4 brake caliper can develop corrosion, causing it to seize, no longer moving freely to operate the brake pads.

This can cause the Audi A4 brake caliper to stick open, failing to move the brake pads towards the brake disc, or stick closed, failing to remove the pads from their contact with the disc, wearing away the friction compound with which they are lined prematurely. Either situation severely limits the braking performance of the vehicle, making driving more hazardous. A leak in the brake hose can reduce the hydraulic pressure applied to the piston, leaving the A4 brake caliper unable to function. We carry a selection of quality replacements for the Audi A4 brake caliper at great low prices.Our secure site makes ordering quick and easy or our toll-free phone line is just as convenient, with expert customer service assistants to help you with your A4 brake caliper order.