Audi A6 Quattro Disc Brake Hardware Guide: 2013-2025
Eliminate brake noise and ensure proper function on your A6 Quattro by understanding this often-overlooked part.
- Always replace the disc brake hardware kit when changing brake pads to prevent noise and ensure even wear.
- A rattling noise over bumps that vanishes with light brake pressure is a classic symptom of failing hardware.
- For rear brake service, you MUST use a scan tool to put the Electronic Parking Brake (EPB) in service mode.
- Confirm your car's specific brake PR code from the vehicle sticker to ensure you buy the correct size hardware.
Symptoms of Failing Brake Hardware
Worn or missing brake hardware is a common source of brake problems. The symptoms are often noise-related and can be misdiagnosed as other issues.
- Rattling or Clicking Noises: The most common symptom is a metallic rattling or light clicking sound when driving over bumps or uneven roads. A key indicator that it's the hardware is if the noise immediately stops when you apply even the slightest pressure to the brake pedal.
- Squealing or Grinding: While often a sign of worn pads, failing hardware can cause pads to sit at an improper angle, leading to high-pitched squealing. If the clips fail entirely, a pad could shift and cause grinding.
- Uneven Brake Pad Wear: If the hardware is corroded or installed incorrectly, it can prevent the pads from moving freely. This can cause one pad to wear out much faster than the other.
Critical Note for DIY: Electronic Parking Brake (EPB)
All 2013-2025 Audi A6 models are equipped with an Electronic Parking Brake. You cannot simply use a C-clamp to press the rear caliper pistons back. You must use a compatible diagnostic scan tool (like VCDS or OBDeleven) to put the rear brakes into "service mode" before starting work. Failing to do this will permanently damage the electronic motors inside the calipers, resulting in a very expensive repair.
🎬 See how to use VCDS for rear brake service mode.Known Issues & Service Bulletins
While there are no recalls for the hardware itself, Audi has issued Technical Service Bulletins (TSBs) for related brake noise issues on the A6 platform.
- TSB 46 15 15 2033674/8: For some 2012-2013 A6 models, Audi acknowledged issues with squealing from the front brakes. The official fix involves applying a specific anti-seize lubricant to the caliper carrier guide pins to ensure smooth movement. This is a good 🎬 Watch this walkthrough for replacing front pads and rotors. practice for any brake job on these vehicles.
- General Brake Noise: In another TSB, Audi notes that brake noise can sometimes be caused by the installation of aftermarket pads or discs. This highlights the importance of choosing quality components.
Choosing the Right Aftermarket Hardware Kit
When you replace your brake pads, you should always install a new hardware kit. Reusing old, heat-cycled, and corroded clips is a recipe for noise and premature wear. For the A6 Quattro, you have a choice between OEM and several quality aftermarket brands.
OEM vs. Aftermarket: Original Audi hardware is excellent but can be costly. High-quality aftermarket kits from reputable brands offer comparable performance and fit, often at a much lower price. Many aftermarket kits use stainless steel or have special coatings to resist corrosion better than the original parts.
Check Your Brake Codes (PR Number)
The 2013-2025 A6 Quattro spans two generations, the C7 (2012-2018) and C8 (2019-Present). These cars were offered with multiple brake sizes depending on the engine and options package. To ensure you order the correct hardware, check the vehicle identification sticker (usually in the trunk by the spare tire or in the service manual) for the brake PR code (e.g., 1LA, 1LB). This is the only way to guarantee a perfect fit.
Aftermarket Brand Tiers
- Premium Aftermarket (Centric, Dynamic Friction): Brands like Centric are well-regarded in repair shops for having a good fit and finish, often comparable to OEM. Dynamic Friction (DFC) is also noted for using high-quality materials like stainless steel in their kits. These are a solid choice for a quiet, reliable repair.
- Standard Aftermarket (Raybestos): Raybestos is a long-established brand offering reliable, OE-quality parts that meet factory specifications. They provide a good balance of quality and cost for daily driving.
- Value & Problem-Solvers (Dorman): Dorman specializes in providing a wide range of aftermarket parts and is known for engineering solutions to common OE problems. Their hardware kits offer a cost-effective option for your brake service.
| Part Type | Estimated Cost |
|---|---|
| New OEM Hardware Kit | $40 - $100 |
| New Aftermarket Hardware Kit | $6.69 - $55.52 |
| Shop Labor (as part of brake job) | $200 - $400 |
Frequently Asked Questions
Do I really need to replace the hardware with every brake job?
Yes. The old clips and springs have been exposed to thousands of heat cycles and road grime. They lose their tension and can corrode, which leads to noise and improper pad movement. For the small cost, it is essential insurance for a quiet and effective brake job.
Why are my brakes rattling right after I replaced the pads?
This is almost always caused by either reusing the old hardware or installing the new hardware incorrectly. Ensure the anti-rattle clips are seated properly and are making firm contact with the brake pads and caliper bracket.
🎬 Watch a guide on installing rear pads and anti-rattle shims.What is the difference between C7 (2013-2018) and C8 (2019+) hardware?
The C7 and C8 generations use different brake caliper designs and sizes. The hardware is not interchangeable. You must purchase the kit that is specific to your vehicle's exact year and model generation.
Can I just buy the hardware to fix a rattle without changing the pads?
While you technically can, it is not recommended. If the hardware has failed, it's likely the pads are also worn or have developed an uneven wear pattern. The job requires removing the caliper and pads anyway, so it is best to replace the pads, rotors, and hardware all at the same time for a complete and lasting repair.
Helpful Videos
Technical Specifications
Hardware kits are specific to the vehicle's generation (C7/C8), year, and brake option package (identified by a PR code). Kits typically include anti-rattle clips, guide pin boots, and springs made of materials like stainless steel.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Audi A6 Quattro:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Symptoms of Failing Brake Hardware
- Critical Note for DIY: Electronic Parking Brake (EPB)
- Known Issues & Service Bulletins
- Choosing the Right Aftermarket Hardware Kit
- Check Your Brake Codes (PR Number)
- Aftermarket Brand Tiers
- Frequently Asked Questions
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