Problems like bad/defective turbo seals causing smoke are the kind of thing that should be caught pre-production, in the development stages. When there is an issue like this that's caught after production starts, things get pretty confusing. I work for Ford engineering and there are always parts that have to be tweaked or altered after a car is released, due to issues like this that no one saw coming. For the parts I handle, all that happens for an updated part is a very sutle part number change called a suffix bump. The base part number stays exactly the same in order to designate the part within its respective category. On top of that, the service part number (the one the dealer uses) is different from the engineering part numbers! So there's a chance that the dealer's part number would be identical, even though the turbo has been revised.
Moral of the story, late changes like this always happen, but they always happen for a reason. Unfortunately there are usually only a handful of engineers that are directly responsible who are really familiar with the intricacies of a change. That makes it next to impossible for the rest of us to know if something like a turbo seal change was made and if new cars are now being built with a revised part, or if a revised part even exists.
someone else had a problem with their O2 sensor not reading the values fast enough or something like that causing the CEl the be thrown. when you find out what the smoking is let me know. im going to take my car down to the dealership and throw a lie and say i saw smoke a few times to get them to check my turbo out for no good reason but to nip the problem in the butt if i have one, and because i hate my dealership and anything to give them more stress and a busier day for no cost is well worth the lie. (silly)
Most of us aren't great fans of our dealers, but remember that warranty work just gets billed back to Mazda. The dealer isn't paying out of pocket for this work. Warranties are technically Mazda's engineering or process errors, so they pay to repair them. If there's nothing wrong with your car, your dealer will be wasting Mazda's money to repair nothing. Just an FYI
All that being said, I'm still paranoid about my car and want things checked out if I hear of a common problem, even if my car shows no symptoms.
This was my very long way of subbing to this thread because there's a ton of good info here! (thumb)
