BMW 1 Series M 2012–2015 — technical service bulletin

Bulletin B111216 · NHTSA communication 10147530 · issued Jul 1, 2016

Technical service bulletin

communication type

Engine and Engine Cooling

component

2012–2015

model years

vehicle entries

Official summary

SERVICE ACTION: N63T ENGINE - CHECK AND REPLACE THE CRANKCASE VENTILATION HOSES. The crankcase ventilation hoses may become brittle and break when they come in contact with hot engine components. One or more of the crankcase ventilation hoses are not FPM rubber material. The FPM rubber material is engine heat resistant. Or The plastic coggurated hoses are not fitted with the self-locking spacers. The self-locking spacers maintain an air gap between the hoses and the hot engine components.

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.