Igosal,
Here's the quote from Ext Maintenance section:
BMW Maintenance 6/100 – Coverage:
The BMW Maintenance Program covers factory recommended maintenance as listed in the owner's BMW Service
and Warranty Information Booklet that is provided in the vehicle. In addition, the replacement of THE
FOLLOWING ITEMS ONLY due to normal wear and tear are also covered: Brake linings (pads) and rotors (both
covered only when worn below limits as per BMW Technical Data Information); external drive belts; clutch; wiper ..."
external drive belts are listed, there.
GL, mD