I just called a repair shop to see what maintenance items I need to take care of for my E46 with 75K miles. In addition to the standard coolant flush the tech highly recommended changing the 'lifetime' auto transmission fluid to the tune of about $400 bucks. I also have squeaking coming from the rear of the car and the tech said I probably need to change out the rear toe bushings and strut mounts. What next? Is anyone else having these issues at this mileage?