# Service bulletin 340414

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: 10148179
- Published by NHTSA: 2018\-11\-13
- Manufacturer's number: 340414
- Manufacturer's date: 2014\-12\-01
- NHTSA component: SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Diagnosis of Compound Brake System Complaints in M Vehicles. INFORMATION 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. These surface hairline cracks are usually spread over the entire brake disc friction area, and have no negative influence on the durability or braking performance. The rotors should not be replaced only for their appearance reasons. When performing routine service on the brake system \(pad replacement due to wear\), the brake discs should be replaced if surface cracks are found to be greater than 13 mm, or if the brake disc thickness is below the minimum thickness. Always replace brake discs in pairs \(per axle\). Install new brake pads when replacing discs. By doing this, the service life of the friction pad surface is increased, and an even material loss is ensured. 2. Vibrations and/or steering wheel torsional vibrations during braking are caused by applying the brakes on discs with minimal to heavy corrosion. These vibrations are most noticeable when braking from high speeds with cold brake components \(less than 212 degrees F\), and will diminish with normal everyday operation. Parts replacement is not required. 3. After high brake loads, running noises can be heard when applying the brakes, and may also be heard to a limited extent after the brakes are released. \(See the note in the Owner's Manual\). These noises are reduced during normal everyday operation, due to further erosion of the brake pad friction lining. Visible surface cracks or craterlike recesses on the brake pad surface are caused by a minor difference in the material of the pad lining, which will decrease with further operation and should not be replaced due to their appearance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10148179-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10148179-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2011 BMW 1 SERIES M
- 2000 BMW 323CI
- 1999 to 2000 BMW 323I
- 2001 to 2006 BMW 325CI
- 2001 to 2005 BMW 325I
- 2001 to 2004 BMW 325IT
- 2001 BMW 325XI
- 2002 to 2005 BMW 325XI
- 2002 to 2004 BMW 325XIT
- 2000 BMW 328CI
- 1999 to 2000 BMW 328I
- 2001 to 2006 BMW 330CI
- 2001 to 2005 BMW 330I
- 2001 BMW 330XI
- 2002 to 2005 BMW 330XI
- 2014 BMW 525D XDRIVE
- 2011 to 2015 BMW 528I
- 2014 to 2015 BMW 535D
- 2011 to 2015 BMW 535I
- 2011 BMW 535I US
- 2011 to 2015 BMW 550I
- 2012 BMW ACTIVE HYBRID 3
- 2013 BMW ACTIVE HYBRID 5
- 2006 to 2008 BMW M ROADSTER
- 2001 to 2005 BMW M3
- 2008 to 2013 BMW M3
- 2015 BMW M3
- 2011 BMW M3 US
- 2015 BMW M4
- 2006 to 2010 BMW M5
- 2013 to 2015 BMW M5
- 2006 to 2010 BMW M6
- 2013 to 2015 BMW M6
- 2014 to 2015 BMW R1200 S ADVENTURE
- 2006 to 2008 BMW Z4

## Recalls for the same vehicles and component

- [14V627000](/recalls/nhtsa/14V627000.md), 2014-10-07: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
- [13V454000](/recalls/nhtsa/13V454000.md), 2013-09-26: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
- [2002052](/recalls/tc/2002052.md), 2002-03-20: Brakes
- [02V088000](/recalls/nhtsa/02V088000.md), 2002-03-18: SERVICE BRAKES, AIR:DISC:ROTOR
- [2001250](/recalls/tc/2001250.md), 2001-10-17: Brakes
- [01V245000](/recalls/nhtsa/01V245000.md), 2001-07-31: PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE
- [1999099](/recalls/tc/1999099.md), 1999-05-26: Brakes
- [99V100000](/recalls/nhtsa/99V100000.md), 1999-05-03: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

## Other bulletins for the same vehicles and component

- [B064925](/bulletins/11024229.md), 2025-10-10, Other: SERVICE BRAKES. Brake Disc Return
- [B340714](/bulletins/10244237.md), 2023-11-01, Service bulletin: SERVICE BRAKES, HYDRAULIC. Functional noises \(squealing/honking\) when braking shortly before the vehicle comes to a stop. CAUSE Material\-
- [B340921](/bulletins/10233158.md), 2023-03-20, Service bulletin: SERVICE BRAKES. 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](/bulletins/10215023.md), 2022-07-05, Service bulletin: SERVICE BRAKES. Visual Inspection of Brake discs/Rotors for new car deliveries
- [B341019](/bulletins/10203336.md), 2021-11-08, Service bulletin: SERVICE BRAKES, HYDRAULIC. 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](/bulletins/10201141.md), 2021-09-07, Service bulletin: SERVICE BRAKES, HYDRAULIC. 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](/bulletins/10194298.md), 2021-05-24, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SERVICE BRAKES, AIR:DISC. 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](/bulletins/10194296.md), 2021-05-24, Service bulletin: SERVICE BRAKES, AIR:DISC; STEERING: STEERING WHEEL/HANDLE BAR. 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.
- [B340517](/bulletins/10178996.md), 2020-08-31, Service bulletin: SERVICE BRAKES, HYDRAULIC; WHEELS. 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.
- [B513016](/bulletins/10174015.md), 2020-04-20, Service bulletin: AIR BAGS; PARKING BRAKE. 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.

JSON: [/v1/bulletins/10148179](/v1/bulletins/10148179)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20340414&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10148179&vehicle=Service%20bulletin%20340414)