NHTSA ID Number: 10172494
Manufacturer Communication Number: B511318
TSB/Document Date: 2020-03-16
Summary
LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE: This Service Information Bulletin (Revision 2) replaces SI B51 13 18 dated February 2020. The exterior rearview mirror glass is discolored or cracked. The power windows and folding mirrors may not operate.
3/2/2020
51 13 18_LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE
SIB 51 13 18
LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS
DAMAGE
2020-02-13
This Service Information Bulletin (Revision 2) replaces SI B51 13 18 dated February 2020.
What’s New (Specific text highlighted):
Situation
Procedure
MODEL
E-Series
F39
G20
G29
Model Description
X2 Sports Activity Coupe
3 Series Sedan
Z4 Roadster
SITUATION
The exterior rearview mirror glass is discolored or cracked. The power windows and folding mirrors may not
operate, and one or more of the following LIN bus faults are stored in the BDC (Body Domain Controller):
D90C03 LIN bus master B: short circuit – BDC
D90C04 LIN bus master B: No communication - BDC
D90C05 LIN bus master B: Communication failed – BDC
D90D07 Operating facility switch block (LIN): Missing LIN slave
D90D0A exterior rearview mirror left (LIN bus): Absent LIN slave – BDC
D90D0D exterior rearview mirror right (LIN bus): Absent LIN slave – BDC
804246 exterior rearview mirror left (LIN bus): Heating or electrochrome: faulty – BDC
804256 exterior rearview mirror right (LIN bus): Heating or electrochrome: faulty – BDC
804265 exterior mirror left or right: Excess temperature — BDC
804260 exterior mirror left or right: Overvoltage — BDC
804261 exterior mirror left or right: Undervoltage — BDC
Copyright ©2020 BMW
of North America, Inc.
1/4
3/2/2020
51 13 18_LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE
CAUSE
Faulty exterior rearview mirror electronics have created a short on the LIN bus, damaging the mirror glass
and causing functional errors in power window and exterior mirror operation.
CORRECTION
Replace the mirror electronics in the exterior mirror.
PROCEDURE
For conditions similar to those described:
1. Test the operation of the power windows, side rearview mirror adjustment, and side rearview mirror
folding functions. Inspect the side rearview mirror glass on both sides for damage as shown in the photo
above.
Is a fault or damage found in one or more of those areas?
Yes: Proceed to step 2.
No: Continue diagnostics using ISTA, this bulletin does not apply.
2. Perform a vehicle test to check for faults. If one or more of the following fault codes are stored, proceed
to step 3.
D90C03 LIN bus master B: short circuit – BDC
D90C04 LIN bus master B: No communication - BDC
D90C05 LIN bus master B: Communication failed – BDC
D90D07 Operating facility switch block (LIN): Missing LIN slave
D90D0A exterior rearview mirror left (LIN bus): Absent LIN slave – BDC
D90D0D exterior rearview mirror right (LIN bus): Absent LIN slave – BDC
804246 exterior rearview mirror left (LIN bus): Heating or electrochrome: faulty – BDC
804256 exterior rearview mirror right (LIN bus): Heating or electrochrome: faulty – BDC
804265 exterior mirror left or right: Excess temperature — BDC
Copyright ©2020 BMW of North America, Inc.
2/4
3/2/2020
51 13 18_LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE
804260 exterior mirror left or right: Overvoltage — BDC
804261 exterior mirror left or right: Undervoltage — BDC
3. Replace the mirror electronics of the affected mirror following repair instructions REP 67 13 526
“Replacing mirror electronics for electrically adjustable exterior mirror left or right”.
4. Replace the mirror glass, if damaged.
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/AIR
And/or:
Refer to ETK/AIR
And, if necessary:
Refer to ETK/AIR
And/or:
Refer to ETK/AIR
Description
Mirror electronics, left
Quantity
1 if necessary
Mirror electronics, right
1 if necessary
Mirror glass (left)
1 if necessary
Mirror glass (right)
1 if necessary
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks.
Mirror electronics, outside rearview mirror incorrect connection /
contact fault
Defect Code:
6713027900
Labor Operation
Description
Performing “vehicle test” (with vehicle diagnosis system –
checking faults) (Main work)
00 00 006
Labor Allowance
Refer to AIR
Or:
00 00 556
Performing “vehicle test” (with vehicle diagnosis system –
checking faults) (Plus work)
Refer to AIR
Connect an approved battery charger/power supply
(indicated in AIR as Charging battery)
Refer to AIR
And:
61 21 528
And, for the:
G20 (3 Series Sedan)
Labor Operation
67 13 525
Description
Replacing mirror electronics for electrically adjustable
rearview mirrors, left or right (Plus work) (including
replacing the mirror as necessary)
Labor Allowance
Refer to AIR
Or:
67 13 530
Replacing mirror electronics for both electrically
adjustable rearview mirrors (Plus work) (including
replacing the mirrors as necessary)
Refer to AIR
Or, for the:
Copyright ©2020 BMW of North America, Inc.
3/4
3/2/2020
51 13 18_LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE
F39 (X2 Sports Activity Coupe) and G29 (Z4 Roadster)
Labor Operation
67 13 526
Description
Replacing mirror electronics for electrically adjustable
rearview mirrors, left or right (Plus work) (including
replacing the mirror as necessary)
Labor Allowance
Refer to AIR
Or:
67 13 531
Replacing mirror electronics for both electrically
adjustable rearview mirrors (Plus work) (including
replacing the mirrors as necessary)
Refer to AIR
Copyright ©2020 BMW of North America, Inc.
4/4
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TSB/Document ID: B511318
Replacement Service Bulletin Number:
MFR Communication Date: 2020-02-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: VISIBILITY
MFR Component System:
MFR Component Subsystem:
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