BMW 320I 2012–2013 — technical service bulletin
Bulletin B130512 · NHTSA communication 10147711 · issued Jun 1, 2015
Technical service bulletin
communication type
Engine
component
2012–2013
model years
6
vehicle entries
Official summary
N20 Engine: Ticking Noise from High-pressure Fuel Pump. The customer complains of a high-frequency ticking noise from the engine compartment. The noise can be heard inside and outside the vehicle. Mechanical vibrations inside the high-pressure fuel pump
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.