NHTSA ID Number: 10176370
Manufacturer Communication Number: B511318
TSB/Document Date: 2020-06-15
Summary
LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE: Any or all of these conditions may be present: A. The exterior rearview mirror glass is discolored or cracked B. The power windows and folding mirrors may not operate C. 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 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.
6/1/2020
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
2020-05-08
This Service Information Bulletin (Revision 3) replaces SI B51 13 18 dated May 2020.
What’s New (Specific text highlighted):
Procedure
MODEL
E-Series
F39
G20
G29
Model Description
X2 Sports Activity Coupe
3 Series Sedan
Z4 Roadster
SITUATION
Any or all of these conditions may be present:
A. The exterior rearview mirror glass is discolored or cracked
B. The power windows and folding mirrors may not operate
C. 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.
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6/1/2020
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
6/1/2020
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”.
Note: Ensure the replacement mirror electronics have the marking “RW” as shown below. Do not
install replacement mirror electronics which do not have this marking.
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.
Copyright ©2020 BMW of North America, Inc.
3/4
6/1/2020
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
51 13 18_LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE
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
Labor Allowance
00 00 006
Performing vehicle test (with vehicle diagnosis system –
checking faults) (Main work)
Refer to AIR
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
Replacing mirror electronics for electrically adjustable
rearview mirrors, left or right (Plus work) (including
replacing the mirror glass as necessary)
Refer to AIR
Replacing mirror electronics for both electrically
adjustable rearview mirrors (Plus work) (including
replacing the mirror glasses as necessary)
Refer to AIR
Or:
00 00 556
And:
61 21 528
And:
67 13 526
Or:
67 13 531
If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead
of 00 00 006.
Refer to AIR for the corresponding flat rate unit (FRU) allowances.
Copyright ©2020 BMW of North America, Inc.
4/4
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TSB/Document ID: B511318
Replacement Service Bulletin Number:
MFR Communication Date: 2020-05-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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