21.ANTI-LOCK BRAKE SYSTEM (ABS) Downtown 300i ABS ABS ECU GUARANTEE: Don't remove four special bolts to take out the ABS ECU. If remove it during the guarantee period. KYMCO can not take a responsibility for it. Oil tube bolt 4 * 3.5 kgf-m Don't need to drain the brake fluid if replace a new ECU Hydraulic unit. 21-7