But what exactly do coil springs do? How do they work? And how much does it cost to replace them in the UK?
This detailed guide explains everything — in simple terms — to help car owners understand coil springs, spot problems early, avoid expensive repairs, and protect their vehicle with support from Warranty Direct.
What Are Car Suspension Coil Springs?
Coil springs are tightly wound metal springs located near each wheel. They are part of your car's suspension system and work with components like shock absorbers, struts, and control arms.
Their primary functions include:
- Absorbing shocks from potholes, bumps, and uneven roads
- Maintaining vehicle height and balance
- Ensuring smooth handling and ride comfort
- Keeping tyres firmly in contact with the road for safety
If your coil springs are damaged, your car immediately becomes harder and less predictable to drive.
How Do Coil Springs Work?
Coil springs compress and expand as your vehicle travels over bumps or dips. The spring absorbs the impact, preventing vibrations from transferring to the cabin.
A simple example:
Imagine driving over a speed bump at 20 mph.
- Without coil springs → The impact would jolt the entire car.
- With coil springs → The springs compress to absorb the shock, then return to shape, keeping the ride steady.
This movement protects your suspension system, maintains control, and prevents long-term wear on other parts like ball joints, tyres, and shock absorbers.
Types of Coil Springs Used in UK Cars
While most vehicles use standard steel coil springs, there are variations depending on the model:
- Standard Coil Springs
Common in hatchbacks and everyday cars like Ford Fiesta or Vauxhall Corsa.
- Progressive-Rate Springs
Provide a softer ride at low speeds and firmer support at higher speeds.
- Heavy-Duty Coil Springs
Used in vans and SUVs to support heavier loads.
- Performance Coil Springs
Fitted in sports cars to improve handling and lower ride height.
Each type wears differently — which is why regular inspection is essential.
Common Signs Your Coil Springs Need Replacing
Damaged or worn coil springs can affect safety. Look out for:
Uneven ride height
One side of your car sits lower than the other.
Clunking noises
A broken spring may hit against the suspension housing.
Poor handling or drifting
The car feels unstable, especially around corners.
Excessive bouncing
Your car continues to bounce after hitting a bump.
Tyre wear patterns
Uneven tyre wear indicates suspension imbalance.
Tip: If one coil spring breaks, mechanics often recommend replacing both on the same axle to maintain balance.
What Causes Coil Springs to Break?
Coil springs are strong — but still vulnerable to:
- UK Road Conditions
Potholes, speed bumps, and uneven surfaces speed up wear.
- Rust & Corrosion
Road salt in winter accelerates corrosion on the spring’s surface.
- Overloading Your Vehicle
Carrying heavy loads repeatedly puts extra strain on springs.
- Ageing Suspension
Most coil springs last 5–10 years, depending on use.
Coil Spring Replacement Costs in the UK (2025 Guide)
Replacement costs depend on the vehicle model, labour rates, and whether you replace one or both springs.
Average UK Coil Spring Replacement Cost:
- Front coil spring: £150 – £280 (including labour)
- Rear coil spring: £120 – £230
- Both springs on the same axle: £250 – £450
Premium or luxury vehicles:
BMW, Audi, Mercedes, and SUVs may cost £300 – £650 due to higher labour time and specialist parts.
Why costs vary:
- Type of spring (standard vs. performance)
- Vehicle design (some suspensions are harder to access)
- Whether related components also need replacement
How Long Does It Take to Replace a Coil Spring?
Most garages complete the job within:
- 1–2 hours for standard vehicles
- 2–3 hours for large SUVs or older cars with rusted suspension bolts
Faster repairs mean lower labour charges — but detecting problems early is crucial.
Are Coil Spring Failures Covered Under Warranty?
Standard manufacturer warranties usually cover defects but not wear-and-tear or corrosion, which are the most common causes.
That’s why many UK car owners choose extended car warranties to protect themselves from sudden repair bills.
You can learn more about coverage options through
Warranty Direct Extended Warranty
Why Coil Spring Issues Should Not Be Ignored
Driving with a damaged coil spring increases the risk of:
- Poor braking performance
- Vehicle “pulling” to one side
- Suspension collapse
- Tyre blowouts
- Failing the MOT test
Because suspension faults are a major MOT failure category, repairing coil springs on time helps you avoid unexpected costs.
Preventing Coil Spring Damage: Practical Tips
- Slow down over bumps and potholes
Hitting obstacles at speed dramatically weakens springs.
- Wash under your car during winter
Removes salt that causes corrosion.
- Avoid overloading
Check your vehicle’s maximum load limit.
- Get regular suspension checks
Once every 12 months or during a routine service is ideal.
Internal Resource: Learn More About Coil Springs
For more suspension-related insights, check our detailed guide here:
Car Suspension Coil Springs – Warranty Direct Blog
Conclusion:
Protect Your Car & Avoid Costly Suspension Repairs
Coil springs play a crucial role in keeping your car stable, safe, and comfortable on UK roads. Understanding how they work — and recognising the signs of damage early — helps you avoid expensive repair bills and maintain control on the road.
Whether your car is ageing, your daily route includes rough roads, or you simply want peace of mind, an extended car warranty can protect you from the unexpected.