EV Maintenance Academy·8 min read·
intermediate

Coolant leaks and thermal faults

Signs that the cooling system needs attention.

You'll learn
  • Understand coolant leaks and thermal faults
  • Know which checks an owner can do and which need a professional
  • Recognise warning signs early

Overview

A falling coolant level, sweet smell, puddles under the car, slow rapid charging or battery temperature warnings can all point to cooling problems.

In depth

SignPossible cause
Level droppingLeak at hose, pump or radiator
Slow rapid chargingBattery too hot or too cold
Weak cabin heatHeat-pump or valve fault
Battery temp warningPump or sensor fault
Stop if warned

If a battery temperature warning appears, stop safely and contact assistance.

Key takeaways

Remember this
  • Watch the reservoir level.
  • Slow charging can be a cooling fault.
  • Repairs are professional work.
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