Service bulletins for the 2014 BMW 328d
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
501 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Turbocharger or supercharger are shown. Show all
| B111615 | 2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. February 2016 Engine Technical Service This Service Information Bulletin supersedes SI B11 16 15 dated September 2015 SUBJECT N20 and N26 engine: Smoke from Exhaust when Starting a Cold Engine. When starting a cold engine, blue smoke can be seen emitting from the exhaust tailpipe for approximately 10-20 seconds. No turbo charger boost faults are stored and no drivability issues can be detected. CAUSE When the vehicle is parked overnight the engine oil pressure will equalize and may leak past the turbo charger exhaust side turbine seal. |
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| B111716 | 2018-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. ?VOLUNTARY EMISSIONS RECALL CAMPAIGN 16E-A05 - N26 ENGINE: REPLACE TURBOCHARGER OIL SUPPLY LINE . Carbonization of the turbocharger sealing ring can cause the exhaust to smoke briefly during cold start up. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.