How do I know if my shock absorbers need replacing?
The clearest signs are a bouncy, unsettled ride over bumps, the front of the car diving noticeably when you brake, or the back squatting under load or acceleration. Tyres wearing unevenly in patches, rather than smoothly across the tread, is another common sign, because worn dampers let the tyre bounce against the road instead of staying planted.
What's the difference between a shock absorber and a spring?
The spring supports the car's weight and absorbs the initial shock of a bump. The shock absorber, or damper, controls how quickly the spring moves and settles afterwards. A worn damper doesn't usually change ride height much — that's more a spring issue — but it lets the car carry on bouncing after a bump instead of settling quickly.
What does a failing shock absorber feel like to drive?
A common description is the car feeling "floaty" or wallowy over undulating roads, or continuing to bounce a couple of times after a speed bump instead of settling in one movement. Some drivers also notice more body roll in corners than they remember the car having, or a knocking or clunking noise over bumps from one corner.
Is there a simple test I can do myself?
A traditional rough check is pushing down hard on one corner of the car and releasing it — a healthy damper lets the car rise and settle within a bounce or so, while a worn one lets it bounce several times. It's a useful rough indicator but not a substitute for someone looking at the car on a ramp, since mounts, bushes and the dampers themselves can all contribute to similar symptoms.
Will the MOT test pick up worn shock absorbers?
Yes — shock absorbers are checked as part of the MOT, usually with the car on a ramp, and dampers that are leaking or have lost their effect can result in an advisory or a failure depending on severity. What an MOT advisory means explains the difference. ONEFIX also looks at dampers as part of the digital vehicle health check carried out with every service, with photographs, so wear gets flagged before it becomes a problem on the road.
Does a worn shock absorber affect braking distance?
It can do. If a damper can't control the tyre's contact with the road, grip can drop under hard braking or on an uneven surface, because the tyre is bouncing rather than staying pressed to the tarmac. It's one of several things that affects stopping distance, alongside the tyres and brakes themselves.
What does it cost to replace shock absorbers?
Cost varies with the car, whether it's a conventional damper or part of a strut assembly, and whether one side or a pair is needed. There's no single figure that's accurate for every vehicle, so ONEFIX checks the car first and puts a price in writing before any work goes ahead — nothing is done until that's approved.
Do all four shock absorbers wear at the same rate?
Not always. The front dampers usually do more work on a lot of cars, since braking shifts weight forward, so it's common for the front pair to wear noticeably before the rear. Dampers are also usually replaced in pairs on the same axle, left and right together, so that both sides of the car respond the same way over a bump rather than one side feeling softer than the other.
How do I get my shocks checked at ONEFIX?
Book a service or a check at Plas Acton Garage, 282 Chester Road, Wrexham, LL12 8DU. Book online or call Monday to Friday, 9:00 to 5:00, and mention what you've noticed over bumps or under braking.