Got a 2014 850K with around 9000 hours. No def on this machine. Have noticed when it goes into regen or cleaning exhaust filter it makes quite a strange sound. Almost sound like the exhaust is fluttering or surging. Curious if others have noticed this same thing or if something is wrong with the machine. Included a video clip of it on YouTube. Thanks!
Not sure if it’s normal, but I ran the same machine but a ‘13 for years and it always did the same thing.
Good to know. If its completely normal it sure is a strange sound and makes you wonder what the reason behind it is...
Yes it sure does.