One problem related to radiator has been reported for the 2003 Mazda MAZDA6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mazda MAZDA6 based on all problems reported for the 2003 MAZDA6.
The contact owns a 2003 Mazda 6. The contact stated while inspecting the vehicle, an unknown fluid started leaking onto the ground. The failure occurred without warning. The vehicle was taken to a dealer, where it was diagnosed that the radiator cap and coolant bypass fitting had malfunctioned. The vehicle was not repaired. The vehicle was taken to an independent mechanic, where it was repaired. The manufacturer was made aware of the issue. The approximate failure mileage was 125,326.