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Service bulletin 120715

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 id10147597
Published by NHTSA2018-11-13
Manufacturer's number120715
Manufacturer's date2015-01-01
NHTSA componentENGINE

NHTSA's summary

"SUBJECT ALPINA N63TU Overboost Faults Set at High Altitude. The ""Drivetrain Malfunction"" Check Control Message is displayed when driving under certain engine operating conditions and at high altitude (above 6500 ft/2000 m). The engine has reduced power until the ignition is cycled off and back on. In this situation, the following faults would be stored in the DME(s) memory: z 120208 - Charging pressure control, plausibility Pressure too high z 120608 - Charging pressure control 2, plausibility Pressure too high z 120408 - Charging pressure control, Switch-off as consequence z 120908 - Charging pressure control 2, Switch-off as consequence DME diagnostic threshold error."

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

Vehicles listed
BMW 1 SERIES M2011 to 2013
BMW 525D XDRIVE2014
BMW ACTIVE HYBRID 72012
BMW ACTIVE HYBRID 72014
BMW ACTIVEHYBRID 72011

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
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B1116142022-05-16. Service bulletin. This bulletin outlines the procedure for checking the engine timing chains for wear, and should be completed in conjunction with SI B11 06 14, "N63 Customer Care Package." The N63CCP and N63 Engine Check the Timing Chain are NOT mandatory Technical Campaigns or Recalls. They should be completed only based on parts availability, workshop capacity, and the customer's schedule.
B0113212021-07-19. Service bulletin. CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
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B0105182020-03-16. Service bulletin. LIMITED WARRANTY EXTENSIONTO 10 YEARS/120000 MILES: This Service Information Bulletin replaces SI B01 05 18 dated July 2019. Engine starts poorly (hard starting) rough idle and misfires. The Service Engine Soon (MIL) lamp is on.
B0129182019-11-18. Service bulletin. N63 ENGINE VEHICLES: CLASS ACTION SETTLEMENT FOR ENGINE OILCONSUMPTION/BATTER. What's New: The short-term extension window of one (1) year/12,000 miles from date of the settlement has expired.
B0121182019-11-18. Service bulletin. N63: OIL CONSUMPTION CLASS ACTION SETTLEMENT DIAGNOSIS/REPAIRS (VERSION 12.0). What's New: Engine Timing Chain Guide Pre-Inspection (with Valve Stem Seal Repair) instruction added Updated N63 Replacement Engine Assembly/Part statement added Warranty Information section updated, including the current coverage and attachments.
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B1223192019-08-19. Service bulletin. DIAGNOSTIC HINT: CATALYTIC CONVERTER INSPECTION AFTER LOSS OF CRANKSHAFT SIGNAL. In certain situations when the crankshaft position signal is lost while driving the malfunction indicator lamp (MIL) and an engine malfunction check control message (CCM #29) may be displayed. The engine may run roughly or with reduced power.