This Coolant Leak Could Have Wrecked the Engine — Here’s What You Need to Know

Coolant leak in this vehicle. Learn how the cooling system works, what happens when it leaks, and how we fix it fast in Belfast & Newtownabbey.

Car Repairs
Aug252025

Another Coolant Leak Diagnosed at 1Stop Motor Shop

We had another vehicle in with a serious coolant leak, but luckily the customer acted fast. Coolant leaks are one of the most common issues we fix at our Newtownabbey garage, and if left untreated, they can cause major engine damage.

Your car’s cooling system is what stops the engine from overheating. It circulates coolant (also known as antifreeze) through the engine block and radiator to regulate temperature. When that coolant escapes — whether through a cracked hose, loose clamp, or failing component — your engine is left vulnerable.

In this case, the coolant was visibly leaking underneath the vehicle. If the customer had kept driving, it could have led to a breakdown or even a blown head gasket.

 

Why Coolant Leaks Are Dangerous

Here’s what can happen if a coolant leak is ignored:

  • Overheating: Without coolant, your engine can’t regulate temperature

  • Warped or cracked cylinder heads: These are expensive to replace

  • Complete engine failure: In extreme cases, the engine seizes

  • Breakdowns at the worst time: Often on the motorway or in traffic

Many drivers don’t realise a leak is present until the damage is already done.

 

Warning Signs to Watch Out For

If you see or experience any of the following, get your car checked as soon as possible:

  • Bright green, pink or orange liquid under your car

  • The temperature gauge creeping up

  • Sweet smell from the engine bay

  • Coolant warning light or dashboard alerts

  • Steam or mist coming from under the bonnet

Even if it seems like a small issue, leaks can worsen quickly — especially on older vehicles or during long drives.

 

Book a Fast Coolant Leak Diagnosis in Newtownabbey or Belfast

At 1Stop Motor Shop, we use coolant pressure testing and visual inspections to identify leaks quickly and accurately. Whether it’s a small hose split or a failing radiator, we’ll get it fixed before it becomes a major issue.

We’re based in Newtownabbey and regularly help customers from across Belfast keep their vehicles safe, roadworthy, and running smoothly.

Trusted by drivers across Belfast - how to contact us:

- Call/WhatsApp (phone and text): 07951 728365
- DM our socials (Facebook & Instagram)
- Email: OneStopMotorShop@hotmail.com
- Contact us via our website

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