Sharp Chemical Smell in Tesla Model 3
A persistent sharp chemical odor in a 2020 Tesla Model 3 may indicate an electrical or battery issue, such as a coolant leak from the battery thermal management system or an overheating component. This requires immediate attention to prevent potential fire risk.
Diagnosis Details
Possible Causes
Coolant leak from battery thermal management system (often ethylene glycol-based, producing a sweet chemical smell)
Overheating electrical component (e.g., inverter, motor, or high-voltage wiring insulation burning)
A/C refrigerant leak (sharp, chemical odor from refrigerant or compressor oil)
Related OBD-II Codes
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What You Should Do
Stop driving immediately and park in a well-ventilated area away from structures.
Do not attempt to open the high-voltage battery or touch any orange cables.
Contact Tesla Service or a certified EV technician for diagnostic testing, including coolant level check and thermal imaging of the battery pack.
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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.
