[cairns]

My 2012 BMW X5 diesel has thrown four CELs (check engine lights) in as many months. After three separate fixes, the dealer now says it has contaminated fuel and they want $12,800 to fix it. I've owned BMWs since 1998 and, suffice it to say, this one will be the last. It's been in the shop eight times since I bought it- a little over a year now. The car is now a nightmare.

I'm pulling a sample of the fuel and will have it tested...

But the car runs great and I can't believe contaminated fuel is the issue- just how common is this? Other than turning the issue over to my insurance company how do you think I should proceed? The internet turns up very little.

ANY advice is greatly appreciated.