Audi A5 Coupe Brake Discs: Specs, Fitment & Wear Symptoms
On the A5, what's commonly called "warped discs" is genuinely almost always uneven pad deposits on related models, not physical warping.
Illustration for editorial purposes
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The Part That Pads Depend On
On the Audi A5 Coupe, discs and pads don't wear independently — neglect one and the other degrades faster too, which is exactly why what starts as a routine pad change frequently turns into a disc replacement as well.
OEM Part Number: 4G0-615-301-AF (genuine front disc — confirm via VIN) — aftermarket front discs Brembo 09.A820.11 / Bosch 0 986 479 467
| Front brake discs (aftermarket) | Brembo 09.A820.11 (314 x 25 mm, vented, 5 holes, coated, high-carbon, min 23 mm); Bosch 0 986 479 467 (314 x 25 mm, vented, 5 holes, coated, high-carbon, min 23 mm); ATE 24.0125-0184.1 (314 x 25 mm, vented, 5 holes, coated, high-carbon, min 23 mm); TRW DF4866S (314 x 25 mm, vented, 5 holes, black painted, high-carbon); Bosch 0 986 479 E49 (318 x 30 mm, vented, 5 holes, coated, high-carbon, min 28 mm); Brembo 09.D059.11 (338 x 30 mm, vented, 5 holes, coated, high-carbon, min 28 mm); Zimmermann 100.3356.52 (345 x 30 mm, vented, 5 holes, Sport Coat Z coated, high-carbon, drilled, min 28 mm) |
|---|---|
| Disc sizes & variants | Four front sizes are listed, 314 mm, 318 mm, 338 mm and 345 mm. The 314 x 25 mm disc is the standard fitment on the 2.0 TFSI and 2.0 TDI cars, the 318 x 30 mm and 338 x 30 mm discs serve the higher-output 2.0 TFSI quattro and 3.0 TDI cars, and the 345 x 30 mm disc is the S5 size. |
| Genuine (OE) numbers quoted | 4G0-615-301-AF (genuine front disc number for this model — confirm via VIN, as several disc sizes exist) |
| Fitment notes | Minimum thickness is 23 mm on the 314 mm disc and 28 mm on the 30 mm-thick larger discs. Brembo 09.D058.11 (318 x 30 mm) and the drilled Brembo 09.A820.1X (314 mm) are also listed. Ridex 82B0270 (314 mm) and 82B0796 (345 mm) are uncoated budget discs limited to cars built up to November 2016. |
The A5 Coupe was offered with two different front rotor diameters (320mm and 345mm) depending on trim and brake package, and this number is shared with the mechanically related A4, A6, S4 and S5 given the platform they have in common. Confirm your rotor size before ordering.
Audi A5 Coupe Brake Discs: Watch: Replacing It
B9/F5 platform, title covers A5; rotors and pads
Audi A5 Coupe Brake Discs: What They Do
Brake discs provide the surface the brake pads clamp against to slow the car, converting momentum into heat through friction. Larger, sportier trims of the A5 Coupe typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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A Genuinely Useful Piece of Context Worth Knowing About Brake Vibration — Audi A5 Coupe Brake Discs
If you're facing a vibration under braking that's been diagnosed as warped discs, this is genuinely worth knowing: among experienced Audi owners, there's a widely repeated consensus that true disc warping is actually quite rare, with the vibration almost always caused by uneven pad material deposits on the disc surface instead. It's genuinely worth trying braking firmly from around 70mph down to 10mph, repeated several times without letting ABS intervene, to remove this build-up before assuming discs need replacing.
It's also genuinely worth knowing that a dealer refusing warranty cover for a brake disc issue, citing ordinary wear, has in documented cases been overturned by escalating directly to the manufacturer's UK customer service.
Audi A5 Coupe Brake Discs: Wear Symptoms, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Brake Discs Guide for warning signs to watch for, confirming fitment against your VIN, and choosing a reliable aftermarket disc.
More Audi Brake Discs
The same part, covered across other Audi models.