B122716

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SI B12 27 16
Engine Electrical Systems
November 2016
Technical Service
DIAGNOSING NON FUNCTIONING "eDRIVE"
MODEL
G12 PHEV (740e xDrive iPerformance)
F15 PHEV (X5 xDrive40e) F30 PHEV (330e)
SITUATION
The customer complains that the vehicle will not go into “eDrive”, and in some cases “eDrive” is
greyed-out in the control display (CID) and is not selectable. Also, there are no pertinent electric
drivetrain fault codes that assist with diagnosis.
CAUSE
Possible 12 volt battery or Intelligent Battery Sensor (IBS) failure.
CORRECTION
Diagnose and replace faulty parts.
PROCEDURE
Only properly trained personnel, who have passed all applicable technical training courses,
should perform any maintenance or repairs on any Hybrid or Electric Vehicle. Work
performed by unqualified persons may result in severe injury or damage to the vehicle.
Additional information may be found in REP 61 00… Observe safety instructions when
handling electric vehicles.
In many cases “eDrive” does not function because of a faulty 12 volt battery or IBS, but the battery
sensor does not set any faults to indicate it. The diagnosis steps below provide general diagnostic
hint for these situations:
1. Perform a Midtronic test on both 12 volt batteries. Replace if necessary.
2. Is “eDrive” functioning correctly?
YES- the vehicle is repaired.
NO- go to step 3.
3. Check the wiring, connections, pins etc. of the IBS on the main and auxiliary 12 volt
batteries. Repair any wiring issues found. If there are no issues with the wiring, replace the
IBS on the auxiliary battery.
4. Is “eDrive” functioning correctly?
YES- the vehicle is repaired.
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NO- go to step 5.
5. Replace the IBS on the main 12 volt battery.
6. Is “eDrive” functioning correctly?
YES- the vehicle is repaired.
NO- submit a PuMA case for further assistance.
WARRANTY INFORMATION
This Service Information bulletin provides technical diagnostic and/or repair information.
Claims that result from the repair of a “verified defect” are to be submitted by following the
established and applicable warranty policy and procedures, together with using the corresponding
defect code and labor operations that are provided in KSD2.
[ Copyright ©2016 BMW of North America, Inc. ]
https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/37... 12/6/2016