E63 engine start up sound
#1
E63 engine start up sound
2010 E63. When first started when cold (in the morning or after sitting 5-6 hours) it has ALWAYS made a high pitched whinning sound for a few seconds. Very noticeable. Sounds like a little turbine engine winding up & down.
Just had it serviced (40k miles). The only thing that should have been done to the engine was oil change & air filter.
No more sound in the morning!
Dealer has no idea whats going on.
Any ideas?
Just had it serviced (40k miles). The only thing that should have been done to the engine was oil change & air filter.
No more sound in the morning!
Dealer has no idea whats going on.
Any ideas?