Been looking around for alternatives for the carbon brush and managed to source them locally. Equivalent to the original ones (dimension wise) but not 100% sure on the composition of the carbon though. -
Caveat: I am not a trained electrician so use this only as a reference. I am not going to be responsible for any damage caused at your side.
Wished we had a Meguiar's service center here in Malaysia.
Difficulty Level: Basic electrical knowledge
Time Required: 15 Minutes or so.
Things you need.
1. Phillips screwdriver
2. Some sandpaper (1000grit)
3. Carbon Brush - BOSCH Part No: 1.607.014.145 (order no: 1.607.031.204)
(there are other makers of brushes out there [dewalt,hitachi,makita] but I only managed to source them from Bosch Repair Centre - nearest to me)