BMW X5 2001–2006 — technical service bulletin
Bulletin B120808 · NHTSA communication 10147861 · issued Dec 1, 2015
Technical service bulletin
communication type
Electrical System
component
2001–2006
model years
6
vehicle entries
Official summary
SI B12 08 08 Engine Electrical Systems December 2015 Technical Service This Service Information bulletin supersedes SI B12 08 08 dated April 2008. The vehicle's NOx emissions may exceed the legally mandated limits. By completing this Service Action, the DME is programmed with revised software to correct this situation.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.