Front Brake Disc – 4K0 615 301 AE
Front brake disc, OE number 4K0 615 301 AE. Component group 615301 identifies this as a front disc. Revision index AE. Sold individually — order two per axle. Confirm disc diameter against your vehicle before ordering; a single platform commonly runs two or three different sizes.
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Technical specifications
| Part Number | 4K0 615 301 AE |
| SKU | AUD-4K0615301AE |
| Brand | |
| Category | Brake Rotors |
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3–5 business days. Free on orders over $150.
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Order before 2 PM for next business day delivery.
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Customer reviews
Verified feedback from Audi owners and independent workshops.
4.2
6 reviews
Elena Duarte
March 10, 2026
Better than the dealer discs
My Q5 FY needed this doing at 103k miles. The vane casting is noticeably tidier than the budget set I pulled off. Needed a wind-back tool for the rear calipers but otherwise a straightforward job. Result is no squeal at all, even cold on a damp morning. Will be back for the other side.
Marcus Marchetti
February 8, 2026
Straight, true and quiet
Fitted to my 2015 Q3 8U. Thickness came in bang on the OE figure when I measured it. Took my time bedding them in over 200 miles as the instructions ask. Result is no squeal at all, even cold on a damp morning.
Martin Kaur
December 29, 2025
Pedal feel transformed
Went on my A4 B8.5 3.0 TDI V6 at 53k miles. The hub face cleaned up first, then these went on with no shimming needed. The vane casting is noticeably tidier than the budget set I pulled off. Result is no vibration through the pedal even on a long downhill run. No complaints at all.
Sven Tran
December 19, 2025
Exactly the right spec
My S4 B8 needed this doing at 93k miles. Weight and vane count match the originals exactly. Carrier bolts came off without a fight and the new discs dropped straight on. Result is no squeal at all, even cold on a damp morning. Good value against the dealer price.
Callum Whitfield
August 13, 2025
Judder gone completely
My TT 8J needed this doing at 84k miles. Thickness came in bang on the OE figure when I measured it. The hub face cleaned up first, then these went on with no shimming needed. Result is no vibration through the pedal even on a long downhill run. Cannot fault it.
Kwame Silva
July 5, 2025
Warped inside 3000 miles
Went on my A8 D4 3.0 TDI V6 at 115k miles. They developed a pulsing through the pedal well before they should have. Expected better given the cost.