Heater problem
1996 BMW 740 V8 Two Wheel Drive Automatic 15700 miles

only when I use the defrost, i smell anti-freeze coming out of the vents, the car has a new water pump and thermostat, hoses, and belts. No leaks of any kind detected. thank you

Hi there,


I would have the cooling system pressure tested hot with the heater on, as i feel that with the smell of coolant in the cabin, you may well have a small leak in the heater core, best to check this out.

Mark (mhpautos)