Toyota Aygo Brake Discs: Specs, Fitment & Wear Symptoms

On the Aygo, a genuinely useful myth worth correcting: discs don't actually "warp" — the real cause is pad material depositing unevenly.

Illustration for editorial purposes

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OEM Part Number: 43512-YZZAJ (genuine front disc — confirm via VIN) — aftermarket front discs Brembo 09.9928.11 / Bosch 0 986 479 B91

Accuracy note: Covers the Toyota Aygo (2014-2021) as listed in the UK aftermarket catalogues. Front brake discs are sold by diameter and thickness, and most models have two or three disc sizes depending on engine, brake size and trim — a 278 mm disc will not fit a car built with 300 mm brakes, so the caliper carrier and the disc must match. The references below are UK aftermarket catalogue listings for this generation, labelled by brand with diameter x thickness in mm; genuine numbers are shown only where a listing quotes one. Measure the old disc or check the brake size against your VIN before ordering, replace discs in pairs with new pads, and scrap any disc at or below its minimum thickness.

Front brake discs (aftermarket)	Brembo 09.9928.11 (247 x 20 mm, vented, 4 holes, coated, min 18 mm, 100 Nm); Bosch 0 986 479 B91 (247 x 20 mm, vented, 4 holes, coated, min 18 mm, ECE-R90); TRW DF4469 (247 x 20 mm, vented, 4 holes, painted black); ATE 24.0120-0180.1 (247 x 20 mm, vented, 4 holes, coated, min 18 mm); Ferodo DDF1527C (247 x 20 mm, vented, 4 holes, coated, min 18 mm, bolts included); Zimmermann 180.3021.20 (247 x 20 mm, vented, 4 holes, coated, min 18 mm, ECE R90); febi 30636 (247 x 20 mm, vented, 4 holes, coated, min 18 mm).
Disc sizes & variants	one front size only, 247 x 20 mm vented, 4-stud, for both the 1.0 and 1.2 engines.
Genuine (OE) numbers quoted	43512-YZZAJ (genuine front disc number for this model — confirm via VIN, as several disc sizes exist)
Fitment notes	Minimum thickness 18 mm. This is the same front disc as the Peugeot 108 and Citroen C1 of the same years.

A Genuinely Useful Myth Worth Correcting: Discs Don't Actually "Warp" — Toyota Aygo Brake Discs

If you're feeling a pulsing sensation through the brake pedal and have been told the discs have "warped," this is genuinely worth understanding: discs don't actually physically warp or bend. What's really happening is that pad material transfers unevenly onto the disc surface, creating slightly higher and lower points around the circumference — this is what you feel as pulsing. A common cause worth knowing: holding the brake pedal down while stationary immediately after hard braking, rather than releasing it once stopped, keeps heat concentrated in one spot and encourages exactly this kind of uneven deposit.

A genuinely counterintuitive fact worth knowing if your car is a hybrid: regenerative braking typically means the rear brakes see considerably less use than you'd expect, since the electric motor handles much of the everyday deceleration. This can mean rear discs corrode more than the fronts — the opposite pattern to what most owners expect based on conventional cars.

It's also worth knowing that a car left standing overnight with heavily corroded discs can occasionally feel genuinely stuck when trying to pull away — a firm, deliberate application of the accelerator followed by a couple of firm brake applications once moving typically clears this within a few hundred metres.

Toyota Aygo Brake Discs: The Part That Pads Depend On

On the Toyota Aygo, because discs and pads wear as a pair, neglecting one speeds up wear on the other — which explains why a routine pad change so often turns up discs that are further gone than expected.

Toyota Aygo Brake Discs: Watch: Replacing It

🎬 Watch: How To Change The Brake Pads And Discs On A Toyota Aygo, Peugeot 107 And Citroen C1 (older gen)

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Mk1 (107/C1 twins). JEnKkWOWTyc "Aygo Brake Pads and Discs" has no gen stated; Mk2 front set-up near-identical.

Before you buy: disc size and design vary by trim, engine size and whether your car has the standard or "sport" brake package. Always confirm against your VIN before ordering.

Toyota Aygo 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 Aygo typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Toyota Aygo 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 Toyota Brake Discs

The same part, covered across other Toyota models.