$3600 estimate was a $3900 charge. Promised for Wednesday early afternoon. I emailed I'd be there Thursday at 7:30 AM open. They got "busy". To busy to let me know. Were nice enough Thursday morning offering me a rental apologizing for not letting me know... Car was done at one. My second time there. $125/hour and everything seems billable. Must be careful about what I ask about, mention!? $3900 included a good will discount. Do like them. Think they do good work. Curious about replacing not just belts but also pulleys, Not heard that before. 2003 330xi in for its 90k, Also did front end bushings and rear brake overhaul. Thinking twice before going back...