Fiat Panda Brake Discs: Specs, Fitment & Wear Symptoms

A genuinely detailed, expert-level explanation: the real root cause is often the reaction frame corroding, not the disc itself — a low corrosion-resistant bracket that can seize pads solid and bend them, plus why a pressure washer will only make things worse.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — front discs (aftermarket) Brembo 08.5085.11 / Bosch 0 986 478 343

Accuracy note: Covers the Fiat Panda (2012-) 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 08.5085.11 (240 x 11 mm, solid, 4 holes, coated, Prime line); Brembo 08.5086.11 (257 x 12 mm, solid, 4 holes, coated, Prime line); Brembo 09.5843.11 (257 x 22 mm, vented, 4 holes, coated, Prime line); Bosch 0 986 478 343 (257.5 x 12 mm, solid, 4 holes, oiled, ECE-R90); Bosch 0 986 479 B43 (257.2 x 22 mm, vented, 4 holes, coated, ECE-R90); ATE 24.0112-0127.1 (257.5 x 12 mm, solid, 4 holes, coated); ATE 24.0122-0197.1 (257.5 x 22 mm, vented, 4 holes, coated); TRW DF2734 (257 x 22 mm, vented, 4 holes, painted)
Disc sizes & variants	Three front sizes, all four-hole on a 98 mm bolt circle. The 240 x 11 mm solid disc is fitted to the base 1.2 petrol; the 257 x 12 mm solid disc to the 0.9 TwinAir 65 and 85 and some 1.3 Multijet cars; and the 257 x 22 mm vented disc to the higher-output TwinAir, 1.3 Multijet 95 and the 4x4 and Cross versions. A 284 x 22 mm five-hole disc (Ridex 82B0668) also appears but is a 500L/Tipo fitment.
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine discs against your VIN
Fitment notes	Minimum thickness is 9.2 mm for the 240 mm solid disc, 10.2 mm for the 257 mm solid disc and 20.2 mm for the 257 mm vented disc. The solid and vented 257 mm discs share a diameter, so check the disc type fitted before ordering.

A Genuinely Detailed, Expert-Level Explanation Worth Knowing — Fiat Panda Brake Discs

If you're facing recurring corrosion-related brake problems, this is genuinely worth understanding at a deeper level than "the discs have corroded": a detailed, real explanation from an experienced owner traces the actual root cause to the reaction frame — the metal bracket the pads slide within, distinct from the disc or pad themselves — being made from a grade of cast iron with genuinely low corrosion resistance. Even on an almost-new car, the sliding surfaces of this frame can corrode significantly, preventing the pads from moving freely as designed. In the worst documented cases, pads can actually seize solid within the frame, with hydraulic pressure then physically bending the pad itself rather than allowing it to move. This is a genuinely more specific and mechanistically different problem than simple disc corrosion, and explains why replacing discs and pads alone sometimes doesn't fully resolve a recurring judder or noise.

A genuinely important warning worth knowing before attempting a DIY fix: using a pressure washer to try to clean away this corrosion won't work, and carries a real risk of forcing water past the caliper seals, which will ruin the caliper entirely. The proper, documented fix involves full disassembly — removing the pads, then the caliper, then the reaction frame itself — followed by thorough cleaning with a wire brush and applying copper grease specifically to the frame's sliding surfaces, not just the backs of the pads. It's genuinely worth knowing that skipping the copper grease step and only cleaning the surfaces has been documented to see the corrosion return within about a week, meaning the grease isn't optional if you want this to actually last.

It's also genuinely worth knowing that brake disc corrosion is generally worse on cars that sit unused for extended periods, since regular driving and braking naturally polishes surface corrosion away before it becomes established — worth bearing in mind if the car is used infrequently, since more regular short drives can genuinely help keep this specific issue at bay.

Fiat Panda Brake Discs: Watch: Replacing It

🎬 Watch: How to change front brake discs / brake rotors on FIAT PANDA (169) [TUTORIAL AUTODOC] (older gen)

Watch on YouTube ↗

169 Panda (2003-2012); no 319 disc video found, front setup very similar

Fiat Panda Brake Discs: The Part That Pads Depend On

On the Fiat Panda, 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.

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.

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

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Fiat Panda 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 Fiat Brake Discs

The same part, covered across other Fiat models.