64 99... Fault 6.1
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Instruction:
Start independent parking heater repeatedly following after-running.
After 32 seconds, measure output of fuel metering pump using peripherals box. See appropriate SYSTEM WIRING DIAGRAM.
Specified value:
Voltage switches between 0V and 12V
FAULT DESCRIPTION
| 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 | ||
| Start independent parking heater repeatedly following after-running. Measure after 32 seconds on the fuel metering pump. Specified value as above | No | Repair or replace supply wire from independent parking heater control unit to metering pump. |
| Yes | ||
| Replace metering pump, refer to 64 12 600 REMOVING AND INSTALLING OR REPLACING FUEL PUMP | ||