Vauxhall Astra Rear Shock Absorber: Specs, Fitment & Common Faults

Genuinely worth knowing: FlexRide-equipped Astras use a completely different rear shock from standard suspension, and it's a genuine factory option rather than something tied to a specific trim badge.

Illustration of a rear shock absorber and coil spring

Illustration for editorial purposes

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Confirmed: FlexRide Shocks Are a Genuinely Different Part

Genuinely important to establish before ordering: Vauxhall's own parts listings distinguish FlexRide (adaptive damping) rear shocks from standard suspension shocks as separate, non-interchangeable references — confirm whether your car has this option fitted before ordering, since it's not always obvious from trim level alone. A "lowered chassis" variant is also a genuinely distinct listing from standard-height suspension.

A further genuinely important distinction: the rear axle uses a torsion beam with a Watt linkage (a specific lateral-location design) on this platform — a genuinely different rear axle component set from a simpler torsion beam without this linkage.

Vauxhall Astra Rear Shock Absorber: The Part That Takes Every Bump Before You Feel It

On the Vauxhall Astra, steering duties mean the front suspension usually gets checked first, but rear shocks wear out too — just more quietly, with early symptoms that are easy to mistake for ordinary road noise until they get noticeably worse.

Before you buy: FlexRide vs standard suspension, ride height, and left/right side all affect fitment. Always confirm against your VIN before ordering.

Vauxhall Astra Rear Shock Absorber: Watch: Replacing It

🎬 Watch: How to Replace Rear Shock Absorbers on Vauxhall Astra J (MK6)

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

Vauxhall Astra Rear Shock Absorber reference plate

OEM Part Number: confirm via VIN — rear shock absorbers (aftermarket) Monroe 376256SP / Sachs 319882

Accuracy note: Covers the Vauxhall Astra (K 2015-2021) as listed in the UK aftermarket catalogues. Rear shock absorbers are replaced as a pair across the axle, because a new damper beside a worn one leaves the car feeling uneven. The right one depends on the engine, the suspension type (standard, sport or heavy-duty, and electronic damping on some models) and sometimes 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 damper against your VIN if you want a guaranteed fit. genuinely worth knowing: rear shocks are typically good for 110,000-150,000km before wear becomes significant, though replacement is recommended once that mileage is reached even without an obvious fault.

Rear shock absorbers (aftermarket)	Monroe 376256SP (gas, telescopic); Sachs 319882 (gas, telescopic); Febi Bilstein 1002617 (gas, telescopic)
Genuine (OE) numbers quoted	None quoted in the catalogue listings — the genuine damper varies by engine, suspension type and body style, so order it against your VIN
Standard suspension, right	Genuinely a different part number from the left-side shock, and from the FlexRide version below — confirm side and suspension type before ordering
Standard suspension, left	A genuinely different reference from the right-side shock above
FlexRide (adaptive damping)	A genuinely different, electronically controlled shock from standard suspension — confirmed by Vauxhall's own parts listings as a distinct fitment
Lowered chassis, where fitted	A genuinely different, shorter shock from standard-height suspension

Shocks should always be replaced in pairs to avoid unbalancing the car's handling and stability.

Vauxhall Astra Rear Shock Absorber: What It Does

The rear shock absorber controls how quickly the rear suspension compresses and rebounds over bumps, working independently of the coil spring. A worn rear shock lets the back of the car bounce excessively after a bump instead of settling quickly, and worn shocks at the rear genuinely reduce the car's grip and stability, particularly in poor weather.

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Vauxhall Astra Rear Shock Absorber: Warning Signs, DIY Difficulty & Aftermarket Advice

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

More Vauxhall Rear Shock Absorber

The same part, covered across other Vauxhall models.