
Coolant Leak from Thermal Management System
Green, orange, or pink fluid leaking under a Tesla Model Y when the car runs hot indicates a coolant leak from the battery thermal management or drive unit cooling system. This can lead to overheating and potential damage to high-voltage components.
Diagnosis Details
Possible Causes
Damaged coolant hose or connection at the battery chiller or radiator
Failed coolant pump or expansion tank
Cracked heat exchanger or drive unit coolant passage
Related OBD-II Codes
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What You Should Do
Stop driving immediately to prevent overheating.
Check coolant level in the reservoir (if accessible).
Schedule a service appointment with Tesla or a certified EV technician to inspect and repair the leak.
Do not attempt to refill with non-Tesla coolant.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.

