Noticed a knocking noise developing in front passenger side. Took the car to a local garage to have it checked out and to get new tires and alignment. I was notified that the sub-frame was rotted out and the car was no longer safe to drive. Contacted mazda for new sub-frame and was notified that the part has been on back order for 6 months and they had no idea when they would be available. Now I am stuck with an 8 year old car that is unsafe to drive with no hope for repair.
2010 Mazda MAZDA6 suspension complaints
Page 3 of 3: complaints 41 to 43 of 43, newest first, as owners wrote them.
When performing an oil change I noticed that the subframe / engine cradle on the passenger side near the right suspension was severely rusted. The subframe is no longer structurally sound and I have parked the vehicle until a repair is completed. The vehicle is no longer safe to be on the road. The severe corrosion appears to be isolated to the right side with the rest of the subframe showing surface corrosion normally seen in an area that uses road salt such as minnesota. I believe that the cause of this failure is the air conditioning evaporator drain dripping on the subframe. As you can see in the attached pictures there is no drain hose used to divert the water from the evaporator around the frame and overboard. This moisture mixed with the road salt created a dangerous amount of corrosion on a key structural component. I am glad I noticed this before an accident occurred
This vehicle does not track straight, even on a level road. At highway speeds (above 50 MPH) it has a decided pull to the left, regardless of the lateral slope of the road. Constant clockwise pressure on the steering wheel is necessary in order to keep vehicle from drifting in a leftward direction. If driver attention is diverted for only an instant the vehicle is likely to partially intrude into the lane to the left, which on an undivided highway could be an oncoming traffic lane (hence the safety issue). I called this to the attention of my mazda dealer's service department at least twice within the first year after purchase (january 2010). Their answer was no answer--they could not find anything wrong mechanically and there were no bulletins from mazda on the subject. They verified the alignment and rotated the tires left to right, but neither of these solved the problem. Nearly five years later the problem still exists and seems even more pronounced than it was originally. A recent check with the dealer indicated that there is still nothing from mazda. Possibly it is a defect that applies only to my car and not in general to that model, but I have no way of determining that at this point.
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