AI Overview
There's no single answer to how often you should change EV coolant, as the required frequency varies significantly by vehicle model and manufacturer, with some EVs never needing it and others recommending service at intervals from 80,000 to 120,000 miles or even longer. You must consult your
vehicle's owner's manual or manufacturer's specifications for the correct coolant service schedule to avoid damaging your battery and potentially voiding your warranty.
Key Factors Influencing Coolant Service Intervals:
- Manufacturer's Specification:
This is the most crucial factor, with examples ranging from Tesla's "never" to Mercedes-Benz's 124,000-mile service and Hyundai/Kia's 80,000-mile recommendations.
- Sealed Systems:
Many EVs use sealed coolant systems, which means the chemicals are less exposed to contaminants and don't break down as quickly as in traditional internal combustion engines, potentially extending the coolant's lifespan.
- Battery Protection:
The coolant's role is to protect the battery and motor from overheating, which can reduce their lifespan and performance. Proper maintenance extends the life of these vital components.
Why You Can't Just "Set It and Forget It":
- Coolant Degradation:
Over time, even in sealed systems, the coolant's protective additives can deplete, and contamination can occur, reducing its effectiveness.
- Warranty Risks:
Using the wrong type of coolant or neglecting the specified service intervals can void your battery's warranty.
