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Service bulletin B611808

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 id10147256
Published by NHTSA2018-11-05
Manufacturer's numberB611808
Manufacturer's date2015-09-01
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

"Battery Maintenance Requirements: Battery Care. Proper battery maintenance is vital when BMW vehicles are in your center's inventory. Allowing a vehicle's battery voltage to drop below 12.0 volts (12.0V) permanently reduces the battery life expectancy and can lead to premature failure of the battery. For vehicles, equipped with a highvoltage battery (hybrid/electric vehicles), failure to properly maintain this battery may lead to a greatly discharged HV battery, requiring replacement. We provide a flexible battery maintenance system every BMW center can use in accordance with their particular needs. This bulletin explains the Battery Charging Calendar (see attachment), charging systems and a simplified tool and battery voltage checking procedure below. INFORMATION To transition the reimbursement of the battery maintenance step from the QCI to the new Battery Care Program described in the procedure section, a reduction in the QCI time allowances was necessary. For more information on the updated QCI payment and the related claim submission information, please refer to SI B01 01 08. Your center will received a separate payment for properly maintaining batteries on in-stocks vehicles. - 12V BATTERY SYSTEMS (INCLUDING HYBRID/ELECTRIC VEHICLES) New Vehicles Arriving at Your Center Upon receipt of a new vehicle: 1. Remove the battery log form (see attachment) from the glove compartment and complete section ""A."" The vehicle also arrives marked with a color-coded round sticker on the windshield. Do not remove this sticker under any circumstances until the vehicle is retailed. The respective color (four options) indicates that the vehicle's battery voltage must be checked in accordance with the new calendar on a four-week cycle. 2. Check also if the vehicle is due for charging according to the charging calendar on the battery log form (vehicle is assigned to the color of the current week!). If yes, check the State of Charge (SoC). If it is below 71% (12.5V), recharge the

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, 12-volt battery

Vehicles listed
BMW BMW

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