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Service bulletin B640415

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 id10146963
Published by NHTSA2018-11-05
Manufacturer's numberB640415
Manufacturer's date2016-11-01
NHTSA componentELECTRICAL SYSTEM; SEATS; EQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

"Third Row of Seats Blower is Inoperative. The blower in the third row of seats is not working and the fault code ""E70C32 - AC-LIN: Heating in third row of seats is not responding"" has been entered in the IHKA (Integrated Heating and Airconditioning, Automatic) control unit. CAUSE LIN BUS short or open circuit in wiring or connectors Blower motor, micro switch defective Control unit, A/C, for 3rd seat row defective"

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

Electrical system, Equipment and accessories, Heating and air conditioning, Seats

Vehicles listed
BMW X52014, 2015, 2016, 2017

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

Recalls for the same vehicles and component
24V6080002024-08-13. ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
17V3270002017-05-18. TIRES; EQUIPMENT:OTHER:LABELS
16V9190002016-12-21. ELECTRICAL SYSTEM:WIRING
20144612014-10-17. Seats And Restraints
14V6500002014-10-17. SEATS

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
B6529252026-01-05. Service bulletin. After updating the vehicle software with ISTA,the Central Information Display (CID) willshow only “static”. There was no issue withCID operation before programming.
B0109242025-03-21. Warranty extension. The High-Voltage (HV) Battery Assemblys Cell Modules Temperature Sensors (Internal NTC repair kit-specific) limited warranty for defects in materials or workmanship has been extended to 10 years / 120,000 miles as determined from the original in-service/first delivery date
B5108192024-02-01. Service bulletin. The basic conditions for initializing the power windows are not met.
B6113052024-02-01. Service bulletin. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
B6534232023-12-06. Service bulletin. Customers may state that the alarm system (DWA) is not active after locking their unoccupied vehicle. Depending on the vehicle’s equipment and settings, no acoustic or optical confirmation (folding the mirrors/blinking confirmation) is noticeable. Additionally, the red anti-theft alarm LED in the interior mirror does not briefly flash every 2 seconds, indicating the alarm is armed.
B5223192023-11-01. Service bulletin. Second seat row blocking access to third seat row, program seat modules. Visible stitching on first row sport seat. Third seat row backrest Bowden cable routing and length change.
B5201212023-09-25. Service bulletin. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted.
B6515232023-06-26. Service bulletin. After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
B0101222023-06-26. Service bulletin. With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the following class action: Isley, et al. v. Bayerische Motoren Werke Aktiengesellschaft and BMW of North America, LLC. The Settlement Benefits are effective and available on and after February 9, 2022. Note: This bulletin is a notice of a Class Action Settlement Service Campaign benefits that are now available.
B8408222023-05-01. Service bulletin. The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the mobile communication network. Due to a production error, the telematics control units were delivered without an IMS configuration. The Connected Drive voice services (Concierge Call, BMW Assistance, and emergency call voice) can no longer be used regionally in the US in vehicle with telematics control units ATM-1 and TCB-4G. Voice control of the vehicle and all other telephone (paired mobile devices) functions are not affected. Emergency call location data is unaffected.