Need some quick advice here. A shorter version of my dilemma...I have a 2009 BMW X5 and recently have had some gear slippage. I tried to blow it off by resetting the computers, downloading new software codes and the like. Well, the wife talked me into taking it into a certified BMW dealership to have it checked out, that was a mistake. I have heard that they try to pin new tranny's on most transmission issues and I discovered that first hand. How do I know if it is legit? Many have said the gearbox never needs to be replaced but that is what they suggested. They claimed many tests and diagnostics were ran and it shows my transmission is shot. Well, it has been a few days now with an occasional "lurch or slip" going from first to second gear but smooth in the rest of gears. The trans failsafe mode has came on only once along with the check engine light, but no other warnings showed up on the computer in the dash. Today, all the warnings went poof and have not come back. I am afraid to replicate the issue again though, so have been driving extra careful. We went shopping tonight and found a 2011 Porsche Cayenne, but it is quite expensive. Are we jumping the gun too soon by not getting a second opinion? The warranty expired 5k miles ago, how convenient right? They are wanting 9k for a new transmission, not including a possible wiring harness, which is an additional 1.2k. So, here lies my problem....we are still upside down on the SUV, by almost 8k. If we do a fast trade in, we have to put down about 14k due to TTL and payoff difference. They come out pretty even except we will owe quite a bit more on a new car. Coming up with the 14k is going to hurt, maybe doable, but it is going to hurt because it will be cash, not on credit cards. Need some input please, especially from mechanics Should I go to an outside mechanic for another estimate and is 9k way, way too much for this?? Even if they say they can repair for 6k, that is still too much IMO, maybe time to dump it.