Last night when I started our 850T it made a loud squeal for approximately 15 seconds. It initially sounded like a belt slipping then it went away. When I got home and turned the motor off I heard something that I thought was the turbo winding down. We've had the car for six years and I had never heard this before. Each time when I start the car it makes this squeal/racket for a few seconds then goes away. It sounds like the bearings in something have gone bad. But why would it go away after a few seconds. The winding down noise when I shut the motor off has not returned. The noise seems to be coming from the drivers side of the engine.
Any assistance would be greatly appreciated.
Rick
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