# Service bulletin B520412

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: 10147878
- Published by NHTSA: 2018\-11\-13
- Manufacturer's number: B520412
- Manufacturer's date: 2015\-12\-01
- NHTSA component: SEATS

## NHTSA's summary

Front Seat Base Makes Noise. A noise may be heard from the left or right front seat base when driving on rough roads. CAUSE The riveting of the seat control bracket to the metal seat base is too loose.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10147878-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10147878-0001.pdf)

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

## Components

Seats

## Vehicles listed

- 2011 to 2016 BMW 528I
- 2014 to 2016 BMW 535D
- 2011 to 2016 BMW 535I
- 2010 to 2012 BMW 535I GRAN TURISMO
- 2011 BMW 535I US
- 2011 to 2016 BMW 550I
- 2010 to 2012 BMW 550I GRAN TURISMO
- 2012 to 2015 BMW 740I
- 2011 BMW 740I US
- 2015 BMW 740LD
- 2011 to 2015 BMW 740LI
- 2009 to 2015 BMW 750I
- 2009 to 2015 BMW 750LI
- 2010 to 2012 BMW 760LI
- 2014 to 2015 BMW 760LI
- 2012 BMW ACTIVE HYBRID 3
- 2015 BMW ACTIVE HYBRID 3
- 2013 BMW ACTIVE HYBRID 5
- 2012 BMW ACTIVE HYBRID 7
- 2014 BMW ACTIVE HYBRID 7
- 2011 BMW ACTIVEHYBRID 7
- 2013 to 2016 BMW M5

## Recalls for the same vehicles and component

- [15V718000](/recalls/nhtsa/15V718000.md), 2015-10-30: CHILD SEAT; SEATS:MID/REAR ASSEMBLY

## Other bulletins for the same vehicles and component

- [B650414](/bulletins/10227568.md), 2022-12-12, Service bulletin: LANE DEPARTURE; UNKNOWN OR OTHER; AIR BAGS; SEATS:BARRIERS; BACK OVER PREVENTION. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 \- Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C \- Front passenger seat occupancy detection transmitting fault\(moisture\)" is stored. The fault may or may not currently be present.
- [B110321](/bulletins/10198899.md), 2021-07-06, Service bulletin: SEATS. B58 ENGINE: ENGINE OIL FILTER REMOVAL PROCEDURE AND TOOLS . A. For the B58 engines, a BMW Oil Catch special tool for use in conjunction with removing the engine oilfilter insert is now available.
- [B520718](/bulletins/10153704.md), 2019-02-25, Service bulletin: SEATS. SEAT THIGH SUPPORT UPHOLSTERY IS PROTRUDING. The upholstery may dislodge slightly from the thigh support base over time from repeated compression due to normal use.
- [B520818](/bulletins/10153640.md), 2019-02-25, Service bulletin: SEATS. FRONT PASSENGER SEAT SPORADIC MOVEMENT. Occasional stopping of seat adjustability movement in the driver and front passenger seats when occupied.
- [651113](/bulletins/10150266.md), 2018-12-03, Service bulletin: SEATS. Installation of a new CIS \(capacitive sensing passenger occupancy mat\) will not enable with ISTA/P. Wrong coding in the spare part from the supplier
- [652113](/bulletins/10148130.md), 2018-11-13, Service bulletin: ELECTRICAL SYSTEM; SEATS. When Unlocking with Comfort Access the Outside Door Mirrors Are in the Wrong Position. The vehicle is locked with one remote key and then enters sleep mode. The vehicle is then unlocked using one of the outside door handles with the second remote key. The outside door mirrors do not move to the correct position. The seats do move into the correct position. CAUSE Software error in driver's seat module
- [B520417](/bulletins/10146680.md), 2018-11-05, Service bulletin: SEATS. BACKREST NOISES WHEN UNDER LOAD. Pop noise coming from seat backrest when pressure exerted toward rear or while pulling away from a stop. Friction between top right rivet holding lordosis \(back Lumbar support\) valve block and backrest cushion spring.
- [B520916](/bulletins/10146548.md), 2018-11-05, Service bulletin: SEATS. ?REAR SEAT RATTLE . Rear bench seat backrest rattles when driving on uneven roads. Rear bench seatback rattles between the attachment points and retaining clip contact surfaces.
- [B520317](/bulletins/10146547.md), 2018-11-05, Service bulletin: ELECTRICAL SYSTEM; SEATS. ?MISSING AUDIO NOTIFICATION WHEN STORING SEAT MEMORY . When saving seat memory settings \(Memory 1 or Memory 2\) with a vehicle without navigation, there is no audio tone confirmation. Software error in control unit of Seat Module 2.
- [B520318](/bulletins/10145298.md), 2018-10-09, Service bulletin: SEATS. MEMORY SEAT ADJUSTMENT IS LIMITED: After programming the vehicle with ISTA 4.10.2x, the adjustment range of the memory seat may restricted.

JSON: [/v1/bulletins/10147878](/v1/bulletins/10147878)

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