Car making a knocking noise, what it could mean
Checking a knocking noise at King Street Motors, West Malling, Kent
Hearing a knocking noise while driving can be worrying. This guide explains the most common causes, from suspension wear to engine issues, and what to listen for. King Street Motor Services in West Malling helps drivers across Maidstone and Kent diagnose noises quickly and safely.
Unusual knocking noises are one of the most common reasons local drivers call a garage. The cause can range from a simple suspension bush to something more serious. At King Street Motor Services in West Malling, we recommend getting noises checked early, as small faults can become expensive if left.
Common causes of knocking noises
Suspension wear: Drop links, bushes, ball joints, and top mounts can knock over bumps.
Loose heat shields: Often causes a metallic rattle at low speeds.
Worn wheel bearings: Can start as a rumble, then develop into knocking.
Brake issues: Loose pads or worn components can knock when braking or reversing.
Engine problems: Less common, but a deep knock under load needs urgent attention.
What to note before you book in
Does it happen over bumps, when braking, or when turning?
Is it louder when the car is cold?
Is the noise from the front, rear, or one side?
Do you feel vibration through the steering wheel?
FAQs:
Is it safe to drive with a knocking noise?
Not always. If the noise is getting worse, affects steering, or comes with vibration, book in as soon as possible.Why is my car knocking when I go over speed bumps?
This is often linked to suspension components such as drop links or bushes.Can a knocking noise cause an MOT failure?
Yes, worn suspension or steering parts can fail an MOT.Can you diagnose noises quickly?
Yes, we can road test and inspect the vehicle to pinpoint the cause.Could it be something simple like a loose wheel?
It can be. If you suspect wheel bolts, do not drive, and get it checked immediately.
Get in touch for servicing, MOT’s, aircon, tyres and more.
We’re here to keep you safe on the roads of West Malling and Kent. Call 01732 843135 or email jjautoskentltd@gmail.com for expert advice and repairs.
