BMW 528I 2012–2013 — technical service bulletin
Bulletin 160812 · NHTSA communication 10150322 · issued Oct 1, 2012
Technical service bulletin
communication type
Fuel System, Gasoline
component
2012–2013
model years
2
vehicle entries
Official summary
?Service Action: Replace Pressure Switch for Tank Leakage Diagnosis Module (NVLD). Contamination of the poppet valve inside the pressure switch for the tank leakage diagnosis module (NVLD = Natural Vacuum Leak Detection) can lead to the improper detection of an evaporative system leak. The Service Engine Soon lamp can be illuminated, and faults related to evaporative system leakage will be stored in the DME fault memory.
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.