I have coolant leaking from the thermostat housing in my car.
Hello, I have come across this many times on this vehicle. You will need to replace the thermostat housing as an assembly to stop the leak. These begin to leak because the plastic warps and no longer seals. You would need to drain the coolant, replace the housing and then refill and bleed the system. You should enlist the assistance of a certified mechanic, like one from YourMechanic, to ensure it is done properly.
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