One problem related to o2 sensor has been reported for the 2007 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Acura MDX based on all problems reported for the 2007 MDX.
I bought this car on mother's day 2017. During the following month I had the check engine light on non-stop, I started receiving error codes, then on the way to the airport (one the interstate), the car literally turned off. We rolled to the airport with no electrical system at all, then the car finally died, thank goodness we got out because for a few minutes we were locked in the car! we replaced the alternator, the battery, 3 of the 4 (O2) oxygen sensors, now the transmission light, the check engine light and the check starting system light are on. Today, the car didn't start twice and I honestly felt at risk just trying to drive home today. So all this has been from mother's day 2017 to now! September 20, 2018. The lights and codes don't stop on this car!.