B610420

3/2/2020
61 04 20_COMFORT ACCESS & COMFORT GO DO NOT WORK SPORADICALLY IN WARM TO HOT TEMPERATURE
SIB 61 04 20
2020-02-18
COMFORT ACCESS & COMFORT GO DO NOT WORK SPORADICALLY
IN WARM TO HOT TEMPERATURE
MODEL
E-Series
G20
Model Description
3 Series Sedan
Production Date
Start of production (Nov.
2018)
Affected Option Code
SA322 Comfort Access
SITUATION
At warm to hot outside temperatures (above 60° F) the customer may complain that the Comfort Access and
Comfort Go sporadically don’t work.
Vehicle can be opened by pressing the remote control unlock buttons, andEngine start is possible by placing the remote control key on the steering column ring antenna (aka
aerial)
The situation corrects itself after the vehicle goes to sleep, or cools down.
CAUSE
At warm to hot outside temperatures, there may be a temporary interruption in communication between the
comfort access functions in the BDC. This leads to sporadic operating failure of the comfort access function.
CORRECTION
Perform diagnosis using ISTA as outlined in the Procedure section.
PROCEDURE
1. Is the concern related to warm / hot outside temperatures, andCan the vehicle be unlocked by pressing the remote-control key buttons, and
Is engine start possible by placing the key on the ring antenna?
Yes: Proceed to next step
No: Perform diagnosis using ISTA
2. Submit a TC case for BDC replacement (part updated)
PARTS INFORMATION
Obtain and confirm the part numbers for your specific vehicle by entering the chassis number in either ETK
or AIR which takes into account specific equipment and/or options.
Part Number
Refer to ETK
Description
Body Domain Controller
Quantity
1
WARRANTY INFORMATION
This Service Information bulletin provides technical, diagnostic and repair-related information.
Copyright ©2020 BMW of North America, Inc.
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61 04 20_COMFORT ACCESS & COMFORT GO DO NOT WORK SPORADICALLY IN WARM TO HOT TEMPERATURE
Eligible and Covered Work/Repairs
When used to repair a verified defect in materials or workmanship, the repair Procedure information
provided in this bulletin is covered under the terms of the BMW New Vehicle Limited Warranty for
Passenger Cars and Light Trucks.
To submit a claim, please following the established and applicable warranty policy and procedures
(Labor/Part/Sublet – bulk materials) that apply to the repair being performed.
Refer to AIR for the corresponding defect code, flat rate labor operations (including diagnosis) and the flat
rate unit (FRU) allowances.
Only one Main labor operation code can be claimed per repair visit.
Work time (WT) labor operation codes require individual punch times and explanations on the repair order
and in the claim comments section.
Copyright ©2020 BMW of North America, Inc.
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