⚠️ Status: Critical

Why is my car making a heavy knocking or rattling noise when driving over bumps?

Quick Answer: A heavy metallic knocking noise over bumps usually means a snapped suspension coil spring, worn anti-roll bar linkage, or a failed shock absorber. A broken coil spring is a critical safety hazard because it can shift and slice directly into your tyre, causing an instant high-speed blowout.
bottom view of shock absorber of vehicle on Shop Car Lift Example of this symptom

What to do immediately:

  1. Reduce your speed immediately, especially over speed bumps and Coventry's potholes.
  2. Listen for scraping noises—if you hear metal rubbing on rubber, pull over instantly.
  3. Visually inspect your wheel arches to see if one side of the car is sitting noticeably lower than the other.
  4. Drive slowly and directly to a garage, or call for recovery if your steering feels loose or unresponsive.

How we fix this at Coventry Service Centre

We put your vehicle straight onto our workshop ramps for a full visual and physical pry-bar inspection. We identify the exact worn components—such as broken drop links, snapped springs, or degraded bushes—and replace them using high-quality OEM-equivalent parts. Finally, we perform a full wheel alignment (tracking) so your car drives perfectly straight and your tyres wear evenly.

Driving with a noisy suspension isn’t just annoying; it can actively compromise your road safety and accelerate tyre wear. At Coventry Service Centre, our experienced technicians use state-of-the-art diagnostic equipment to quickly pinpoint whether your vehicle’s knocking or rattling is due to worn shock absorbers, damaged coil springs, degraded anti-roll bar links, or failing suspension bushes. We only use high-quality replacement parts to ensure your vehicle handles smoothly, safely, and comfortably over every bump. Contact our Coventry team today to book a comprehensive suspension check.

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