Shock Absorber Buying Guide

Last updated: February 2026 · 6 min read

Worn shock absorbers affect everything from ride comfort to braking distance and tyre wear. Because they degrade gradually, many drivers don't realise how much their car's handling has deteriorated until they fit new ones. This guide explains what to look for, when to replace them, and which brands deliver the best results.

Signs Your Shocks Are Worn

The most obvious sign is a bouncy ride — if the car continues to bounce after going over a bump instead of settling quickly, the damping has deteriorated. Other symptoms include the car nosediving under braking, excessive body roll in corners, uneven tyre wear (particularly cupping or scalloping on the tread), and a general feeling that the car is less controlled than it used to be. Oil leaking from the shock body is a clear visual sign of failure.

The classic test is to push down firmly on each corner of the car and release. A healthy shock absorber should bring the car back to level in one movement. If it bounces more than once, the shock is worn. During an MOT, testers check for leaks and excessive play, and many garages have a dedicated shock absorber testing machine.

Types of Shock Absorber

Brand Guide

Monroe is the biggest name in shock absorbers worldwide and supplies OEM to many manufacturers. Their Original range matches factory specs exactly, while the Gas-Magnum range is a gas-charged upgrade. Very wide UK coverage — they make shocks for almost every car on British roads. Prices are mid-range and quality is consistently good.

Sachs (owned by ZF) is the OEM supplier for BMW, Mercedes, Audi, and Porsche among others. If your car came with Sachs from the factory, buying Sachs replacements guarantees identical performance. Slightly more expensive than Monroe but excellent for German cars.

KYB (formerly Kayaba) is the OEM supplier for most Japanese manufacturers — Toyota, Honda, Nissan, Mazda, and Suzuki all use KYB. Their Excel-G range is a gas-charged monotube design that's a genuine upgrade over standard twin-tube shocks, and it's priced competitively. If you drive a Japanese car, KYB is the obvious choice.

Bilstein is the premium aftermarket choice, known for their distinctive yellow monotube dampers. The B4 range is an OE replacement, the B6 is a firmer, sportier option. Bilstein shocks are noticeably better than standard but cost more — typically £50–£80 each versus £25–£45 for Monroe or KYB. Worth it if you enjoy driving and want the best handling.

UK-Specific Considerations

British roads are particularly hard on suspension. The combination of potholes, speed bumps, and wet conditions means UK cars tend to need shocks replaced sooner than the European average. Rear shocks often wear faster than fronts in the UK because of speed bumps — the rear axle hits them harder as the car has already started to accelerate away. If you're buying a used car, check whether the shocks have been replaced and budget for it if they haven't.

Pricing and Fitting

Shock absorbers typically cost £25–£80 each for standard replacements, so £50–£160 per axle pair. Fitting takes 1–2 hours per axle, with labour costs of £60–£150 depending on the car. Rear shocks are usually easier and cheaper to fit than fronts. After fitting, a four-wheel alignment is recommended (£30–£50) to ensure the tyres wear evenly.