Connect DIS Tester.
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
- Measurement
- Checking alternator
If charge indicator lamp is permanently lit:
Remove voltage regulator and check carbon brushes, replace if necessary.
Replace alternator regulator switch.
NOTE:
Minimum length of carbon brushes "A" = 5 mm.
If charge indicator lamp goes out while engine is running:
Check control voltage.
Regulator switch must be replaced if control voltage is not achieved.
Replace alternator regulator switch.