BMW 335D 2009–2013 — technical service bulletin
Bulletin 130412 · NHTSA communication 10150317 · issued Oct 1, 2012
Technical service bulletin
communication type
Electrical System
component
2009–2013
model years
8
vehicle entries
Official summary
Service Action: Program Control Units (OBD). A software update is available for the DDE (Digital Diesel Electronics) for monitoring Exhaust Gas Recirculation (EGR) and Selective Catalyst Reduction (SCR).
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.