At Meta Mechanics, we specialize in ensuring that your high-performance vehicles, like the Audi RSQ8, stay in peak condition. Recently, we completed a rear brake pad replacement for an Audi RSQ8, and during the service, we identified a few key issues that needed addressing. Below is a detailed report of our findings and the solutions we’ve implemented to ensure the safety and performance of the vehicle.
Issues Identified:
1. Worn Rear Brake Pads:
- What We Found:
The rear brake pads on this Audi RSQ8 were significantly worn, with less than 1mm of usable friction material left. This is well below the minimum wear thickness and can severely affect braking efficiency, especially in emergency situations. - Solution:
We replaced the rear brake pads with high-quality, OEM-compatible pads designed specifically for the Audi RSQ8. Regular inspections are recommended every 10,000 miles or as soon as you notice any changes in braking performance (such as squealing or vibration). This will help avoid further damage to the braking system.
2. Uneven Wear on Rear Brake Pads:
- What We Found:
Upon further inspection, we noticed that the inner rear brake pads were more worn than the outer pads. This often points to potential issues with brake caliper function, particularly the caliper’s slide pins, which may not be moving freely, causing uneven pad contact and pressure. - Solution:
After disassembling the rear brake components, we cleaned and lubricated the caliper slide pins, ensuring they move smoothly and evenly. We also checked the calipers for any other signs of wear or damage. If uneven pad wear is observed again, further inspection of the braking system is recommended to address any potential underlying issues, such as suspension misalignment or worn brake components.
3. Grooved or Scored Rear Brake Rotors:
- What We Found:
The rear brake rotors exhibited light scoring and grooves from the worn brake pads. This can create uneven friction and reduce braking performance, leading to vibration or noise when braking. While the damage wasn’t severe, it’s important to address this to maintain smooth braking. - Solution:
We performed a rotor resurfacing to eliminate the grooves and restore a smooth, even surface. In some cases, rotors that are excessively scored may need to be replaced. Fortunately, this wasn’t the case with this vehicle, and resurfacing was sufficient. Regular rotor checks are essential to ensure they’re not worn down beyond the safe operating limit.
4. Brake Fluid Check:
- What We Found:
During the service, we inspected the brake fluid. While the fluid level was normal, we observed that the fluid had started to show signs of slight contamination with moisture. Moisture in brake fluid can compromise brake performance and cause internal corrosion of the brake system components over time. - Solution:
We performed a brake fluid flush, replacing the old fluid with fresh, high-performance fluid that meets the manufacturer’s specifications. This helps ensure the hydraulic system operates correctly and extends the lifespan of the brake components.
5. Brake Pad Wear Sensors:
- What We Found:
The brake pad wear sensors on the rear pads were no longer functioning properly. These sensors are critical in alerting the driver when it’s time to replace the brake pads, and their failure can lead to missed warnings about the condition of the brake pads. - Solution:
We replaced the faulty brake pad wear sensors with new, OEM-approved sensors. Now the vehicle’s onboard system will accurately monitor brake pad wear and notify the driver when it’s time for the next inspection or replacement.
Audi RSQ8 Inspection of Rear Brake Pads
Audi RSQ8 Removal of Rear Wheels
Audi RSQ8 Removal of Old Rear Brake Pads
Audi RSQ8 Inspection of Rear Brake Rotors for Damage or Wear
Audi RSQ8 Rotor Resurfacing or Replacement (if necessary)
Audi RSQ8 Cleaning of Brake Components (Calipers, Rotors, etc.)
Audi RSQ8 Lubrication of Caliper Slides and Hardware
Audi RSQ8 Installation of New Rear Brake Pads
Audi RSQ8 Brake Pad Bedding-In Process
Audi RSQ8 Reinstallation of Rear Wheels and Torque Check
