Three problems related to power train have been reported for the 2008 Mazda MAZDA6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mazda MAZDA6 based on all problems reported for the 2008 MAZDA6.
Takata recall. The contact owns a 2008 Mazda 6. When the vehicle was placed into the reverse position, the vehicle jerked and moved forward without warning. The vehicle was not diagnosed or repaired. In addition, the contact received notification of NHTSA campaign numbers: 15v345000 (air bags) and 15v382000 (air bags); however, the parts to do the repairs were not available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. The failure mileage was 89,682. VIN tool confirms parts not available.
When the car is accelerating shift shock occurs when shifting from gear 3 to 4. It doesn't always occur when the transmission is cold, but is inevitable as the transmission warms. As time goes on the shift shock occurs under less and less of a load due to the wearing of a part in the transmission. The only way to fix the issue is to purchase a new transmission. When purchasing the transmission you have to make sure you get a transmission that has been redesigned, otherwise the issue will happen again. We talked to a Mazda master mechanic that said Mazda knows about the issue and even went as far as changing the way the transmission was made so the problem wouldn't continue. They obviously know the issue is their fault if they changed the design of the transmission, but will not issue a recall and own up to their mistake. From what we understand, the problem is with the housing of the transmission. This means you have no choice but the replace the entire transmission. Mazda made a mistake in their engineering, but will not admit the mistake. We may not buy another Mazda because of this.
Placed our 2008 Mazda 6 in reverse, the steering wheel locked up, the brake pedal would not engage and car rolled back into a telephone pole, causing moderate damage to rear of vehicle. No warning of any previous failures.