BMW 320I 2012–2015 — technical service bulletin
Bulletin 180114 · NHTSA communication 10148117 · issued Jul 1, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012–2015
model years
16
vehicle entries
Official summary
Exhaust Leak on Diesel Particulate Filters. An exhaust leak develops on the Diesel Particulate Filter (DPF) around the area of the flexible coupling. Age or wear on the flexible coupling
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.