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Service bulletin B340614

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 id10147871
Published by NHTSA2018-11-13
Manufacturer's numberB340614
Manufacturer's date2015-12-01
NHTSA componentSERVICE BRAKES, HYDRAULIC

NHTSA's summary

?SI B34 06 14December 2015 BrakesTechnical Service This Service Information bulletin supersedes SI 34 06 14 December 2014. designates changes to this revision SUBJECT M5 and M6 Front Axle Brake Squeak with Compound Brake System. A squeaking noise can be heard when braking from a slow speed. This situation may apply to M5 and M6 vehicles fitted with the metallic brake pads (P/N 34 11 2 284 869). These pads can be identified by the absorber weights at the top and bottom. Due to the design of the fixed caliper brake system, an unfavorable interaction between components may cause a squeaking noise.

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

Brakes

Vehicles listed
BMW 528I2011, 2012, 2013, 2014, 2015, 2016
BMW 535D2014, 2015, 2016
BMW 535I2011, 2012, 2013, 2014, 2015, 2016
BMW 535I US2011 (the catalog's model; the bulletin names a series or trim of it)
BMW 550I2011, 2012, 2013, 2014, 2015, 2016
BMW 640I2012, 2013, 2014, 2015, 2016
BMW 650I2012, 2013, 2014, 2015, 2016
BMW ACTIVE HYBRID 52012, 2013
BMW M52013, 2014, 2015, 2016
BMW M62013, 2014, 2015, 2016

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

Recalls for the same vehicles and component
14V6270002014-10-07. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
13V4540002013-09-26. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B3409212025-01-23. Service bulletin. A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed.
B3407142023-11-01. Service bulletin. Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-
SIM0106172022-07-05. Service bulletin. Visual Inspection of Brake discs/Rotors for new car deliveries
B3410192021-11-08. Service bulletin. Inform the customer during a consultation that the M Compound (standard equipment) and M Carbon Ceramic (optional) brakes are high-performance brake systems which are designed for sporty, dynamic driving styles. As a side effect of the highest possible brake performance, customers are likely to hear noises due to the extremely resilient materials. In the same conversation, inform the customer that his/her braking performance can help ensure that the noises do not occur or disappear quickly.
B3410192021-09-07. Service bulletin. Inform the customer during a consultation that the M Compound (standard equipment) and M Carbon Ceramic (optional) brakes are high-performance brake systems which are designed for sporty, dynamic driving styles. As a side effect of the highest possible brake performance, customers are likely to hear noises due to the extremely resilient materials In the same conversation, inform the customer that his/her braking performance can help ensure that the noises do not occur or disappear quickly.
B3404142021-05-24. Service bulletin. Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Braking from high speed with cold brake components (less than 212 degrees F) increases the likelihood of cracks to form.
B3405172020-08-31. Service bulletin. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: Ticking noise coming from front wheel while cornering without brakes applied, noticeable at low speeds. The vehicle must be moving.
B5130162020-04-20. Service bulletin. TAILGATE UNINTENTIONALLY OPENS: This Service Information Bulletin (Revision 4) replaces SI B51 30 16 dated March 2018. Trunk/tailgate may open when vehicle is locked Trunk/tailgate may open while the vehicle is in motion usually after stopping such as a traffic light etc. Vehicle key trunk/tailgate button may be accidentally pressed thus opening the tailgate.
B3405172020-04-20. Service bulletin. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: This Service Information Bulletin (Revision 3) replaces SI B34 05 17 dated September 2017. Ticking noise coming from front wheel while cornering without brakes applied noticeable at low speeds. The vehicle must be moving. See attached video V34 01 20 Note: For a similar noise heard when parking with the brakes applied refer to SIB 31 01 12. Microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs.
B3410192020-01-21. Service bulletin. HELPFUL INFORMATION FOR CUSTOMER DISCUSSIONS REGARDING MOTORSPORT VEHICLE BRAKES: Note for customer deleted: If the noise does not disappear despite the attempts to regenerate the brake a repair is required.