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Service bulletin B640317

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 id10146768
Published by NHTSA2018-11-05
Manufacturer's numberB640317
Manufacturer's date2017-09-01
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

"AIR CONDITIONING COOLING IS INSUFFICIENT. * A/C system is not providing sufficient cooling and the vehicle switch is NOT in ""Eco Pro"" position. * A/C system contains little or no A/C refrigerant. Contaminants under O-ring seals have allowed refrigerant loss."

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

Equipment and accessories, Heating and air conditioning

Vehicles listed
BMW X12016, 2017
BMW X1 SAV2016 to 2017

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

Other bulletins for the same vehicles and component
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.
B6127232023-12-06. Service bulletin. When using the Key Reader to retrieve CBS information from the customer key, no current vehicle data is available, or the data does not match the maintenance schedule.
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.
SIB8406222022-08-22. 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 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.
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SIB3301222022-07-18. Service bulletin. The following complaints may be noticed while slow maneuvering with a steering input of 80-100% (at or near full lock, e.g., parking lot maneuvers) or accelerating with a medium to large steering angle: Humming or creaking noises from the rear area, slight vibrations also noticeable from the driver's seat. The vehicle may also jerk slightly.
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