If your car overheats only when stopped, it’s usually a cooling fan or airflow issue.
Common causes
- Cooling fan failure
- Low coolant
- Blocked radiator
- Faulty thermostat
1. Cooling fan failure
Fans should kick in at low speeds.
Quick fixes:
- Turn on AC — fans often activate
- Listen for fan noise
2. Low coolant
Not enough fluid to cool the engine.
Quick fixes:
- Check coolant level
- Top up when engine is cold
3. Blocked radiator
Debris reduces airflow.
Quick fixes:
- Check for leaves or dirt
- Rinse radiator gently
What to try first
Check coolant level — overheating often starts here.
When to call a professional
If the temperature rises rapidly or steam appears.