Citroen C1 Brake Discs: Specs, Fitment & Wear Symptoms

On the C1, a genuine Citroën Technical Bulletin fixes a specific rear brake sticking fault — plus a real consumer-rights point about aftermarket parts and warranties.

Illustration for editorial purposes

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

Accuracy note: Covers the Citroen C1 (2014-) 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); Bosch 0 986 479 B91 (247 x 20 mm, vented, 4 holes, coated, min 18 mm); ATE 24.0120-0180.1 (247 x 20 mm, vented, 4 holes, coated, min 18 mm, with bolts); TRW DF4469 (247 x 20 mm, vented, 4 holes, black painted, min 18 mm); Zimmermann 180.3021.20 (247 x 20 mm, vented, 4 holes, Coat Z coated, min 18 mm); 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 with a 4 x 100 mm bolt pattern, fitted to every engine in the range (1.0 VTi 69, 1.0 VTi 72 and 1.2 VTi 82).
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine discs against your VIN
Fitment notes	Minimum thickness is 18 mm; Brembo quotes 100 Nm wheel bolt torque. The disc is shared with the Toyota Aygo and Peugeot 108 of the same era. Brembo 09.9928.14 is a second Brembo reference for the same disc and Ridex 82B0050 is an uncoated budget alternative limited to cars built up to November 2016.

Confirmed: A Genuine Citroën Technical Bulletin Covers a Specific Sticking Fault — Citroen C1 Brake Discs

If you're experiencing a distinct crunch or clunk when pulling away after releasing the handbrake, this is genuinely worth knowing: Citroën has a documented Technical Service Bulletin covering exactly this fault, involving fitting steel brake shields to the rear discs. These shields are specifically designed to prevent mud, grit, and road debris from building up and binding against the disc, which causes the pad to bind slightly in the carrier and produces the characteristic crunch on release. Multiple owners confirm dealers fitting these shields under warranty once the fault was recognised — worth asking your dealer directly whether this fix has been applied to your car if you're experiencing this specific symptom.

An honest caveat worth knowing: the shields address the sticking and crunching symptom specifically, but don't necessarily solve the underlying rear disc corrosion problem — one owner who had the shields fitted still found the discs badly pitted, grooved, and rusted a few months later, despite the shields being in place. If you're dealing with both symptoms, it's worth treating them as two separate issues rather than assuming the shield fix alone resolves everything.

It's also genuinely worth knowing your consumer rights here: fitting quality aftermarket discs and pads (Brembo is specifically and repeatedly recommended by owners as resolving the corrosion problem where standard-fit discs kept rusting) does not invalidate an extended warranty — warranty conditions relate to the car being serviced according to schedule, not to exclusively using manufacturer-branded parts, and a dealer cannot legally enforce a parts-only restriction as a condition of warranty coverage.

Citroen C1 Brake Discs: Watch: Replacing It

🎬 Watch: Mk 2 Citroen C1 - Front brake discs and pads change

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Mk2 (2014-) front discs and pads

Citroen C1 Brake Discs: The Part That Pads Depend On

On the Citroen C1, discs and pads work as a pair, and neglecting one tends to accelerate wear on the other — which is exactly why worn discs so often get discovered during what was meant to be a routine pad change.

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.

Citroen C1 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 C1 typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.

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Citroen C1 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 Citroen Brake Discs

The same part, covered across other Citroen models.