Four problems related to power train have been reported for the 2007 Mazda MAZDA3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Mazda MAZDA3 based on all problems reported for the 2007 MAZDA3.
The steering wheel seems to have lost all power steering capabilities, very scary! makes it extremely dangerous when attempting turns! noticed it luckily as I was pulling out of a large parking lot. Trying to remedy the situation so I can use a car that isn't an accident waiting to happen.
Automatic 5 spd shifts harshly between 3rd and 4th gear. Jerking the car when it happens.
The transmission began taking severe and erratic shifts when going uphill when my Mazda reached 70,000 miles. These shifts are so severe that the first time it happened I thought a tire had blown out. It occurred on a high mountain pass that has no siderails and many fatalities have occurred simply from weather conditions. When we contacted Mazda customer service, they admitted that a defective part was in the transmission from the original purchase of the car. The part, in fact, is no longer manufactured because it has been rendered defective. Mazda told us over the course of several months and hours of putting us on hold and several more thousand miles put on the car that the only thing we could do is replace the entire transmission because it was no longer under warranty. Why is this not a safety issue and therefore a recall? Mazda customer service promised to review the case and our multiple phone calls, never got back with us, and refused to see that it is a safety issue. They will do nothing to repair the transmission because of their faulty manufacturing. We still continue to go over this pass, now in snowy and icy conditions with a baby in the backseat and no idea when the transmission will go out. Unfortunately until someone is seriously injured or dies Mazda won't take this issue seriously. I have lost all faith in Mazda's quality of assurance or concern for customer safety and will not be purchasing another Mazda in the future.
While trying to accelerate form a stop my car stalled. The engine shut off but the radio and all indicator lights were on the dash. I had to put the car into park and turn the key to the off position and restart the engine. My car is an automatic transmission and has done this multiple times all at similar speeds. Going from a complete stop or from idling speed trying to accelerate.