Overheating
Engine Overheating? What to Do and How We Help
An engine temperature gauge creeping into the red, or steam coming from under the bonnet, is one of those warnings you shouldn't drive through hoping it settles down. Overheating can cause serious engine damage within minutes if you keep going, so the safest move is always to stop.
We attend overheating breakdowns across Birmingham, the Black Country, Solihull and Sandwell, checking the cause on scene where it's safe to do so and recovering the car if it needs a garage rather than a quick fix.
What to do the moment you see it
Turn off the air conditioning, pull over somewhere safe as soon as you reasonably can, and switch the engine off. Don't open the bonnet immediately if there's visible steam or the engine has clearly been running hot — pressurised coolant can scald badly. Give it time to cool before anyone opens the cap or checks levels.
Common causes
A low coolant level from a leak, a failed water pump, a stuck thermostat, a split hose, or a failing radiator fan are the most frequent culprits. On older or higher-mileage cars, a blown head gasket is also a possibility, particularly if you notice white smoke from the exhaust or a sweet smell alongside the overheating.
- Low coolant from a leak — hoses, radiator, or a loose cap
- Failed water pump — coolant not circulating properly
- Stuck thermostat — coolant not flowing to the radiator
- Failing cooling fan — no airflow at low speed or idle
- Head gasket — white exhaust smoke, mayonnaise-like residue under the oil cap
What we check on scene
Once the engine's had time to cool, we check coolant level, look for obvious leaks or split hoses, and check whether the cooling fan is working. If it's a simple low coolant level with no obvious leak, a top-up might get you moving cautiously to a garage. If there's a leak, a failed pump, or signs of head gasket trouble, recovery is the safer route.
Why continuing to drive is risky
Driving with the temperature gauge in the red, even for a short distance, can warp the cylinder head or blow the head gasket — turning a coolant leak that might cost relatively little to fix into a major engine repair. If in doubt, it's always cheaper to stop and get it checked.
Questions we get asked
Is it safe to keep driving if the temperature drops back down?
Not really — if it overheated once, there's a fault somewhere in the cooling system, and it's likely to happen again, potentially causing damage. Best to get it checked before continuing.
Can I top up the coolant myself at the roadside?
Only once the engine has properly cooled down, and only if there's no sign of a leak. If coolant is visibly leaking or disappearing quickly, a top-up won't solve the underlying issue.
What does white smoke from the exhaust mean alongside overheating?
This can indicate a blown head gasket allowing coolant into the combustion chamber, which is a more serious repair and not something to keep driving on.
Will you top up my coolant or do I need recovery?
If it's a simple low level with no obvious leak, we may be able to help you get moving. If there's a leak or a bigger fault, we'll recover the car to a garage.
Temperature gauge climbing?
Pull over safely and call 07402 666 687 — we'll check it out and recover you across Birmingham if needed.