Clear Water Leak Under Toyota Corolla (AC Off)
Clear water leaking from under the vehicle when the AC is off is likely condensation from the air conditioning system or normal water drainage from the cowl area. Since the AC wasn't on, it may be residual condensation or water from rain/washing. This is typically not a mechanical issue.
Diagnosis Details
Possible Causes
Residual condensation from the AC evaporator draining after recent AC use
Water draining from the cowl or windshield area due to rain or car wash
Coolant leak (if fluid is colored or sweet-smelling) – but clear water rules this out
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What You Should Do
Check the fluid color and smell.
If it's clear and odorless, it's likely water.
Monitor the leak location and amount.
If it persists without AC use and after drying the car, inspect the cowl drains for blockage.
No immediate action needed unless fluid changes color or smell.
Estimated Repair Cost
$0 (no repair needed) to $50 if cowl drain cleaning is required
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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.