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Service bulletin B111516

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10153738
Published by NHTSA2019-02-25
Manufacturer's numberB111516
Manufacturer's date2019-01-01
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

NHTSA's summary

B58 ENGINE: OIL LEAK FROM TURBOCHARGER. Engine oil (1) can be seen leaking from the bottom of the turbocharger near the band clamp (2). The turbocharger band clamp is loose.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories, Turbocharger or supercharger

Vehicles listed
BMW 340I2016, 2017
BMW 430I2017
BMW 440I2017, 2018
BMW 540I2017
BMW 640I2018
BMW 740I2017
BMW 740LI2016 to 2017
BMW M240I2017, 2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B1118182019-02-25. Service bulletin. SERVICE ACTION: ALPINA B7 WITH N63R ENGINE - CHECK AND REPLACE OIL FEED LINES AND THE MAP THERMOSTAT ELECTRICAL CONNECTOR. This bulletin describes the procedures to inspect and if necessary replace the following components: * Turbo charger oil feed lines (leaking) * Map thermostat and electrical harness (corrosion).
B1116152018-12-10. Service bulletin. 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.
B1117162018-11-05. Service bulletin. ?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.