Citroen C1 Rear Springs: Specs, Fitment & Common Faults

A part that fails quietly, then suddenly — sagging gradually before a sudden, audible failure.

Illustration for editorial purposes

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A Part That Fails Quietly, Then Suddenly

On the Citroen C1, a rear spring often sags gradually for months without an obvious symptom beyond a slightly lower ride height, then fails suddenly at the coil's end with an audible clunk — worth bearing in mind if you notice one rear corner sitting lower than the other.

Before you buy: generation and body style both affect spring rate and fitment. Always confirm against your VIN before ordering.

Citroen C1 Rear Springs: Watch: Replacing It

🎬 Watch: How to change rear springs / rear coil springs on CITROEN C1 (PM, PN) [TUTORIAL AUTODOC]

Watch on YouTube ↗

This video is of an earlier generation of the same model; the job is similar but the spring seats and fixings can differ slightly.

OEM Part Number: confirm via VIN — rear coil springs (aftermarket) Kilen 51449 / Monroe SP4301

Accuracy note: Covers the Citroen C1 (2014-) as listed in the UK aftermarket catalogues. Rear coil springs are sold as a pair for the axle and should be replaced as a pair, because a new spring beside a tired one leaves the car sitting unevenly. The right spring depends on the engine and gearbox, the suspension type (standard, sport or heavy-duty) and, on some cars, the body style. The references below are UK aftermarket catalogue listings for this generation, labelled by brand with the fitment details the catalogue gives; carmakers rarely publish the genuine number against these, so match a genuine spring against your VIN if you want a guaranteed fit. genuinely worth knowing: rear springs are sold in left/right pairs matched to a specific rate marking — confirm the marking on your existing spring rather than assuming from trim alone.

Rear coil springs (aftermarket)	Kilen 51449; Monroe SP4301; Monroe SP4302 (320 mm); Suplex 07197 (standard, 324 mm)
Genuine (OE) numbers quoted	None quoted in the catalogue listings — the genuine spring varies by engine, suspension type and body style, so order it against your VIN
Standard rate	Confirm your exact generation and side, since PSA Group used multiple distinct rear spring references across most model generations
Estate/higher-load body style, where applicable	Genuinely a stiffer rear spring rate than the equivalent standard body style, to handle the increased load-carrying capacity

Always replace Citroen C1 rear springs in pairs — a single new spring paired with an old, sagged one on the other side creates an uneven ride height and handling bias.

Citroen C1 Rear Springs: What It Does

The Citroen C1's rear coil spring supports the weight of the car's rear end and absorbs the initial impact of a bump, working alongside the shock absorber rather than replacing its function. A sagged or broken spring lowers ride height, can affect headlight aim, and in severe cases is an MOT failure item.

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Citroen C1 Rear Springs: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Rear Springs Guide for symptoms of a failing spring, confirming fitment against your VIN, and OEM vs aftermarket guidance.

More Citroen Rear Springs

The same part, covered across other Citroen models.