BMW Z4 2005 — technical service bulletin
Bulletin 120806 · NHTSA communication 10019997 · issued Apr 1, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005
model years
1
vehicle entries
Official summary
Service action: program mss70 dme - tank ventilation diagnostics. Fault code: 2a1a: tank ventilation system, function is erroneously stored in the dme. The service engine soon lamp is illuminated. *tt
Vehicles covered
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.