I bought bmw 520d 08 plate with 108k (fsh) mileage about a month ago.
Car is absolutely fine & pleasure to drive.
Unfortunately for the past few day's I've noticed a very Faint whistling sound coming when accelerator is pressed.
Is this a sign of turbo going?
Anyway I can find out if it's a turbo issue?
What are the costs of replacing turbo.. If it's the turbo.
Or am I just being paranoid... lol