Unfamiliar sounds from your vehicle are never a good sign. Whether it’s a squeal, rattle, bang or hiss, unusual noises could point to a range of issues—some minor, some more serious. At D&G Autocare, we’re here to help drivers stay safe and informed with expert servicing available in Edinburgh, Perth, Dundee, and Dunfermline. Here’s your guide to what those mysterious sounds could mean.
1. Squealing When You Brake
One of the most common and alarming noises drivers experience is a high-pitched squeal when braking. This often signals worn brake pads. Brake pads are designed with a wear indicator that emits a noise to alert you before damage occurs. If left unattended, worn brakes can affect your stopping distance and safety.
What to do: Book a brake inspection at your nearest D&G Autocare centre, our technicians will carry out a full check and replace your pads if needed.
2. Knocking from the Engine Bay
A knocking or tapping sound coming from your engine could be a sign of low oil levels or worn engine components such as bearings. This is one of the more serious noises to listen out for, as it may lead to significant engine damage.
What to do: Stop driving and check your oil levels immediately. If the problem persists, bring your car to D&G Autocare for a full engine inspection.
3. Hissing Under the Bonnet
A hissing sound may indicate a coolant or vacuum leak. This is especially common if the noise starts after your car has been running for a while. If it’s accompanied by steam or overheating, it could mean your engine is leaking coolant or that your radiator hose is damaged.
What to do: Turn off the engine and let it cool. Do not attempt to open the radiator cap while hot. Visit one of our servicing locations to prevent further overheating damage.
4. Rattling from Under the Car
A metallic rattle, especially when idling or accelerating, could mean a loose exhaust component or heat shield. In some cases, it may indicate a failing catalytic converter, which can affect emissions and fuel economy.
What to do: Don’t ignore it. Book your vehicle in with D&G Autocare for a full exhaust system inspection.
5. Clicking When Turning
Hearing a clicking noise when you turn corners? This could be a worn CV joint—a key part of your vehicle’s drive system. If it fails, you could lose control of the car.
What to do: Visit one of our expert garages for servicing in Perth, Edinburgh, or any of our other convenient locations to get it sorted quickly.
Don’t Let Small Sounds Become Big Problems
Strange noises are your car’s way of asking for help. Catching these signs early can save you hundreds of pounds in repairs and maintenance and keep you safe on the road. At D&G Autocare, we provide expert diagnostics and repairs as part of our full range of car servicing.
With locations across Edinburgh, Perth, Dundee, and Dunfermline, we’re here when you need a service or repair. Whether it’s an odd noise, warning light, or just time for a check-up, you can trust D&G Autocare to keep your vehicle in top condition.
Book your car service or MOT, or car repair appointment today at your nearest branch and experience professional, friendly service you can rely on.
