OEM Audi Brake Calipers

Maintaining Brake Calipers for a Safe Ride

Brake calipers are the heart of the hydraulic stopping system on your Audi S5. These heavy metal housings wrap around the spinning rotor, converting pressurized brake fluid into mechanical force. The pistons forcefully shove the friction pads against the iron disc to decelerate the vehicle.

How to Check Your Brake Calipers for Wear

1. Visual Leak Check

Look closely at the rubber piston dust boot to ensure it is free of wet fluid.

2. Inspect Pin Sliding

Examine the floating bracket by grabbing the caliper and confirming it moves slightly side-to-side.

3. Check For Dragging Heat

Ensure the wheel isn't radiating burning heat after a calm highway commute.

4. Verify Bleeder Integrity

Gently inspect the top bleeder screw confirming massive rust hasn't welded it shut.

5. Review Braking Pull

Test the brakes firmly at highway speeds to ensure the car doesn't pull sideways.

Common Brake Caliper Issues and Quick Fixes

Catastrophic Piston Seizing

Replace the frozen brake calipers entirely to restore a completely smooth retracting pad.

Deep Pad Dragging

Inspect the worn brake rotors and utilize a new caliper if the pad was constantly grinding.

Bleeder Screw Snapped

Utilize a drill extractor very carefully or simply replace the ruined caliper housing.

Leaking Piston Seals

Ensure you are buying a complete new loaded caliper rather than attempting a messy rebuild.

Frequently Asked Questions

Do OEM brake calipers come with pads?

No, genuine calipers are typically sold as bare housings requiring separate pad purchase.

Can I buy a rebuilt brake caliper?

Generic rebuilds utilize cheap seals that blow out instantly during panic braking.

Will a bad caliper ruin my rotor?

If the rigid piston seizes, it will constantly drag the pad and superheat the rotor.

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