Service bulletin B340714
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10152664 |
| Published by NHTSA | 2019-01-07 |
| Manufacturer's number | B340714 |
| Manufacturer's date | 2018-11-01 |
| NHTSA component | SERVICE BRAKES, HYDRAULIC |
NHTSA's summary
"Carbon Ceramic Brake Noise. INFORMATION ""M"" vehicles are designed for high-performance, spirited driving. To accommodate this type of driving profile, a braking system which exceeds the standards for handling heavy brake forces, extreme temperatures, and excellent stopping power at high speeds is required. ""M"" vehicles can be ordered with the optional ultra high-performance braking system, featuring perforated carbon ceramic brake discs designed for circumstances similar to those encountered on racetracks. The carbon ceramic brakes were designed to improve braking efficiency, and dramatically increase braking performance along with a significant reduction in weight. When developing the carbon ceramic brake system, the main focus was on braking performance for the sporty-minded driver, while accepting the comfort limitations of functional noises at slower speeds and when coming to a stop. Please inform the customer that the carbon ceramic brake system's functional noises (squealing/honking), are a known characteristic for this type of material, and are only a small trade-off for the improved braking performance. These functional noises have no effect on the performance, operational reliability and durability of the brakes. Part replacement will not provide a remedy for the noise; this is a known characteristic of the high-performance brake system. More information on the performance and operation of these brakes can be found in the Owner's Manual under ""M carbon ceramic brake."" WARRANTY INFORMATION Not applicable."
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
| BMW 525D XDRIVE | 2014 |
|---|---|
| BMW 528I | 2011, 2012, 2013, 2014, 2015, 2016 |
| BMW 535D | 2014, 2015, 2016 |
| BMW 535I | 2011, 2012, 2013, 2014, 2015, 2016 |
| BMW 535I US | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| BMW 550I | 2011, 2012, 2013, 2014, 2015, 2016 |
| BMW ACTIVE HYBRID 5 | 2012, 2013 |
| BMW M3 | 2015, 2016, 2017 |
| BMW M4 | 2015, 2016, 2017, 2018 |
| BMW M5 | 2013, 2014, 2015, 2016 |
| BMW M5 | 2018 |
| BMW M6 | 2013, 2014, 2015, 2016, 2017 |
| BMW R1200 S ADVENTURE | 2014 to 2016 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 14V627000 | 2014-10-07. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM |
|---|---|
| 13V454000 | 2013-09-26. 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.
| B064725 | 2025-10-10. Other. Protection Plate Return |
|---|---|
| B340921 | 2025-01-23. 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. |
| B340714 | 2023-11-01. Service bulletin. Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material- |
| B340921 | 2023-03-20. 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. |
| SIM010617 | 2022-07-05. Service bulletin. Visual Inspection of Brake discs/Rotors for new car deliveries |
| B341019 | 2021-11-08. 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. |
| B341019 | 2021-09-07. 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. |
| B360121 | 2021-05-24. 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. |
| B340414 | 2021-05-24. 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. |
| B510221 | 2021-04-26. Service bulletin. AIR DUCT COVER LOOSE OR MISSING: The air duct cover (fender mounted) may be loose or missing. Prolonged high-speed driving can cause movements of the fender, causing the air duct to become loose. |