Citroen C4 Brake Pads: Specs, Fitment & Wear Symptoms

On the C4, a genuine warning: leaving the ignition on while changing rear pads can trigger a genuine EPB fault — plus a key generational distinction worth knowing.

Generation covered: this guide is for the current C4 (launched 2021, facelifted 2024), with particular focus on 2021–2023 registered examples now old enough for parts to be a common search. Check your logbook or VIN if you're unsure which generation you have.

Illustration for editorial purposes

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Citroen C4 Brake Pads: OEM Part Number

Genuinely worth knowing: C4 has been sold across several genuinely distinct generations (C4 I, C4 II/Aircross-related, current C4 III) with different disc sizes and pad specs on each — confirm your exact generation before ordering, since parts don't cross over between them.

A Genuinely Important Warning: Never Leave the Ignition On While Changing Rear Pads — Citroen C4 Brake Pads

If your car has an electronic parking brake, this is worth taking seriously before starting a rear pad job: leaving the ignition switched on while releasing the handbrake and changing the pads has been documented to cause a genuine EPB fault, with real confirmed fault codes (C156C-92 and C1561-00, relating to the actuator sensors) appearing afterward. Always switch the ignition fully off once the parking brake is released and before starting any work on the rear calipers, rather than leaving it on for convenience.

A genuinely important distinction depending on your car's age: earlier EPB-equipped models (broadly pre-2013/14) use a single central motor under the front seat connected to a Bowden cable running to both rear wheels — on these, pads can genuinely be changed without any diagnostic computer at all, since the cable simply releases when the parking brake itself is off. Later models switched to individual motors built into each rear caliper, which do require diagnostic equipment (Lexia or DiagBox) to put into service mode before pad replacement. Confirming which system your specific car has before starting the job will save you a wasted trip either buying unnecessary diagnostic access or discovering partway through that you do need it.

If the EPB has stopped engaging or releasing after pad work, a genuinely useful first troubleshooting step before assuming a deeper fault: turn the ignition on and leave it for around 5 seconds, then activate the parking brake switch to apply it and hold for a further 5 seconds. If this doesn't restore normal function, the fault is likely to need proper diagnostic equipment to investigate further.

A Part Everyone Owns but Few Understand

Almost every Citroen C4 driver knows brake pads wear out eventually. Fewer know what the early warning signs actually sound and feel like, which is exactly why so many pads get replaced only after they've already started damaging the disc underneath.

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

Citroen C4 Brake Pads: What They Do

On the Citroen C4, brake pads clamp against the discs to convert the car's momentum into heat, slowing it down. They're a deliberately wearing part — designed to sacrifice themselves gradually rather than let the far more expensive disc take the damage.

Common Sizes

Standard trims (front)	Varies by engine — confirm via VIN

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Citroen C4 Brake Pads: Wear Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Brake Pads Guide for warning signs to watch for, confirming fitment against your VIN, and R90-certified aftermarket brands worth trusting.

More Citroen Brake Pads

The same part, covered across other Citroen models.