Here's a repair for you. My wife's 2008 335i's twin turbos stopped functioning. The dealer wanted $1,700 to fix it. My mechanic, a friend in our rural community, took a look. He pulled a broken plastic valve off one of the vacuum tanks. He said, "go to the hardware store and pick up one of these, in brass, with the same dimensions".
$1.85, and one hour later, it was back together at full power.
If only I could keep doing this, I could afford to maintain this car.
