[442_Tom]

So I just replaced the infamous turbo coolant Y deep down behind the alternator and the two Ts on top of the fabulous N63, and with the engine cover off just drove it about 30 minutes to check for leaks. Noticed quite a loud whining coming from passenger side front near alternator. This ‘fan’ sound may happen all the time but I heard it much differently with the engine cover off, and it seemed to last longer than ‘normal’ - 10 to 12 minutes. Is this N63 normal - thank you