One problem related to service engine light on has been reported for the 2007 Mazda CX-7. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Mazda CX-7 based on all problems reported for the 2007 CX-7.
Engine ceased on the highway while I was driving. Mazda says it is my fault for going 2000 miles over the oil change. However, oil light never came on; car was not driving any differently than normal; and no service engine light came on. Even though car is under warranty, Mazda is refusing to pay for the damage. It is hard to believe that a well-maintained card with a little over 50k miles will cease it engine because of 2000 miles over an oil change.