Two problems related to battery dead have 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.
Over the past two years have had to inexplicably jump Mdx when it fails to start, usually after sitting over night. (confirmed no auxiliary power left on. ) will be fine for a period of time, and symptoms reappear. Have now changed battery twice in past year. Four months after most recent battery change, battery was dead again. This time after jumped the car threw some additional warning lights around charging system. After trying to return to the parking space, the car started was not driving properly, seems to be electrical. After reading forums online my symptoms match very closely to others that have a handsfreelink issue on this model Mdx. (parasitic power draw. ) contacting Acura today, as this time the car is not drive-able.
This is the third time the electrical system has failed caused by "battery drainage". Local repair shops do not know how to fix problems, but dealer's and Honda mechanics are very familiar with this horrible problem. Everyone fixing the problem knows very well this should be "a recall" matter, and creates a great road hazard as well are garage fires and loss of life. The things involved are "blue tooth" modular, air conditioner clutch relay, fuses. Regarding the blue tooth, this modular gets very very hot, and could cause a fire!! when the battery fails to charge while driving to get safely off the highway is very dangerous, much worst at darkness!! Honda needs to get their act together and recall and fix these problems now. My experience happened with the car in motion, and all indicators flashing, rear axle noises, heat inside car, loss of power, and vehicle in "kind of, a limping mode". Very scary and dangerous occurrence. We are the original owner of the car, now with 140,000 miles, and always serviced every 3-5,000 miles. We have taken pride in this vehicle, until this "battery drainage" problem, now is effecting our thoughts about Honda motors.