One problem related to radiator has been reported for the 2003 Mitsubishi Outlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mitsubishi Outlander based on all problems reported for the 2003 Outlander.
The radiator blew apart while driving on the hwy causing the engine to quickly overheat. There were no warning lights to indicate there was a problem. Upon inspection by my mechanic it was discovered that the cylinder head also cracked. He was aware of a possible known issue and contacted Mitsubishi who verified a problem with the cooling fan controller. After having the vehicle towed to the Mitsubishi dealership I was told by them that they would only cover the cost of the parts and not the labor. I would have thought that if a defective part caused these problems that I shouldn't have to pay anything much less over $1,100 in labor.