Here's some good tips for the E90 front brakes:
Tools needed:- Screwdriver
- 6mm allen bit on socket (for rotor hat bolt)
- 7mm allen bit on socket (for caliper mounting bolts)
- 16mm socket for caliper bracket to car
- torque wrench
Torque values:- Brake caliper hex bolts: 22 ft/lbs
- Brake caliper mounting bracket (bigger bolts) 81 ft/lbs
- Brake disc rotor hat to hub: 10ft/lbs