Audi - Ate Hydraulic Aluminum Brake Booster/Servo, Newer Style, Leak Repair Service, to repair your Audi Servo is $175.00 + RS + Ins Important NOTE : This Alum Servo above, It was also built in Cast Iron, the C.I. is an early version, and is not Repair-able, as it cannot be taken apart! My Info: Jay Stratton, 2514 North Tustin Ave. Unit E, Santa Ana, CA. 92705. my e-mail, jaycstratton9@gmail.com scroll down