64 99... Fault 1.1 Combustion air blower
WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.
Instruction:
Measure voltage on combustion air blower with peripheral box (pin allocation: refer to DIS circuit diagram). Specified value : 6 V (+/- 1V)
FAULT 1.1 COMBUSTION AIR BLOWER TROUBLESHOOTING
| Question | Measure | |
|---|---|---|
| Is supply voltage O.K.? | No | Replace independent parking heater control unit, refer to 64 12 520 REMOVING AND INSTALLING/REPLACING CONTROL UNIT WITH HEAT EXCHANGER (THERMO TOP S) . |
| Yes | Replace combustion air blower, refer to 64 12 530 REMOVING AND INSTALLING/REPLACING COMBUSTION AIR BLOWER (THERMO TOP S) . | |