NHTSA ID Number: 10171504
Manufacturer Communication Number: B840416
TSB/Document Date: 2020-02-18
Summary
SOS MALFUNCTION DISPLAYED This Service Information Bulletin (Revision 1) replaces SI B84 04 16 dated September 2016. One or all the following may be experienced in the vehicle: An SOS malfunction is seen in the Kombi (aka instrument cluster) When pressing the E-Call/SOS button in the overhead console nothing happens Fault code B7F33C (internal ECU error) is stored in the Telematics control unit (ATM/TCB2) There are 2 known causes for this failure. They are as follows: Software file missing from the ATM/TCB2 control module Water leak at the "shark fin" roof antenna (aka roof aerial) leading to corrosion in the ATM/TCB2 control module.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: B840416
Replacement Service Bulletin Number:
MFR Communication Date: 2020-01-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
2/3/2020
84 04 16_SOS MALFUNCTION DISPLAYED
SIB 84 04 16
SOS MALFUNCTION DISPLAYED
2020-01-06
This Service Information Bulletin (Revision 1) replaces SI B84 04 16 dated September 2016.
What’s New (Specific text highlighted):
• Situation
• Procedure
• Parts
• Warranty
MODEL
ESeries
F22
F30
F31
F32
F34
F80
F82
G12
Model Description
2 Series Coupe
3 Series Sedan
3 Series Sports Wagon
4 Series Coupe
3 Series Gran Turismo
M3 Sedan
M4 Coupe
7 Series Sedan
Production Date
Affected Option
Code
From
July 1st, 2015
SITUATION
One or all the following may be experienced in the vehicle:
An SOS malfunction is seen in the Kombi (aka instrument cluster)
When pressing the E-Call/SOS button in the overhead console, nothing happens
Fault code B7F33C (internal ECU error) is stored in the Telematics control unit (ATM/TCB2)
CAUSE
There are 2 known causes for this failure. They are as follows:
Software file missing from the ATM/TCB2 control module
Water leak at the “shark fin” roof antenna (aka roof aerial), leading to corrosion in the ATM/TCB2
control module
CORRECTION
Depending on the root cause identified, there are 2 possible solutions:
Cause 1:
Replace the ATM/TCB2 control unit
Cause 2:
Correct water leak at the shark fin as necessary
Replace the ATM/TCB2 control unit
PROCEDURE
For conditions that are similar to situation described, perform the following:
1. Locate where the ATM/TCB2 is installed.
Note: Depending on the vehicle and the vehicle equipment, there are different installation locations for the
ATM/TCB2 control unit.
Copyright ©2020 BMW
of North America, Inc.
1/3
2/3/2020
84 04 16_SOS MALFUNCTION DISPLAYED
2. The ATM/TCB2 may be located either:
In the trunk under the floor board – REP 84 10 810
Or
Above the headliner – REP 84 10 851
Cause 1:
Diagnose with ISTA.
Using the mouse, hover cursor over the
ATM/TCB2 in the control unit tree.
Look at the list of software files
Does one of the filenames display as all
“Zeros”?
YES- Replace the ATM/TCB2 control unit. Follow
the corresponding repair instructions to Remove
the control unit. Go to step 4 when complete.
Note: Remember to check/install the ATM/TCB2
battery and program the vehicle.
NO – Continue to next step.
Cause 2:
Remove and reinstall the shark fin per
REP 65 20 030.
Note: The repair instructions contain the
procedure on cleaning and resealing the shark
fin.
Picture shows a space/gap in the seal of
the shark fin that would cause leakage.
Cause 2:
Remove and replace the ATM/TCB2 as
per REP 65 20 037
This picture shows corrosion on the
contact of the ATM/TCB2 control unit.
Copyright ©2020 BMW of North America, Inc.
2/3
2/3/2020
84 04 16_SOS MALFUNCTION DISPLAYED
3. Update BMW Assist service via the iDrive.
4. Perform an E-Call/SOS call by pressing the button in the overhead console.
Always connect a BMW-approved battery charger/power supply (SI B04 23 10) when performing
programming.
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
82 69 9 408 866
Description
Telematics control unit
Adhesive kit
Quantity
1
1
WARRANTY INFORMATION
Defect codes: 8411021200, 8450023700
Refer to Attachment for Warranty information.
Supporting Materials
picture_as_pdf B840416 Attachment Warranty Information.pdf
Copyright ©2020 BMW of North America, Inc.
3/3
Attachment to SI B84 04 16
January 2020
SOS MALFUNCTION DISPLAYED
WARRANTY INFORMATION
Cause One (1): Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger
Cars and Light Trucks or the BMW Certified Pre-Owned Program.
Telematics control module permanently failed
Defect Code:
8411021200
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
Check function on the telephone
Work time (WT)
And:
61 21 528
And, as necessary:
84 10 005
And, additionally for the:
e-VehiclesLabor Operation
61 25 910
Description
Recharging high-voltage battery unit (to high voltage
charging socket)
Labor Allowance
Refer to AIR
And, for:
All applicable Models except the G12 (7 Series Sedan)Labor Operation
84 10 811
Description
Replacing telematics communication box (after vehicle
diagnosis)
Labor Allowance
Refer to AIR
Or: as applicable
84 10 851
Replacing telematics control module under headlining
(after vehicle diagnosis)
Refer to AIR
Or, for the:
G12 (7 Series Sedan)Labor Operation
84 10 821
Description
Replace telematics control unit (equipment spec. w/o
slide/tilt sunroof) (after vehicle diagnosis)
Labor Allowance
Refer to AIR
Or:
84 10 826
Replace telematics control unit (equipment spec. w/
slide/tilt sunroof) (after vehicle diagnosis)
Or:
1
Refer to AIR
Replacing the telematics control unit under the
headlining (with slide/tilt sunroof) (after vehicle
diagnosis)
Refer to AIR
Replacing the telematics control unit under the
headlining (with panorama glass roof) (after vehicle
diagnosis)
Refer to AIR
Labor Operation
Description (See below)
Labor Allowance
61 00 730
Programming / encoding control unit(s)
Refer to AIR
84 10 851
Or:
84 10 852
And:
Cause Two (2): Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger
Cars and Light Trucks.
Defect Code:
8450023700
Labor Operation
Description
Performing vehicle test (with vehicle diagnosis system –
checking faults) (Main work)
00 00 006
Bluetooth antenna Loose
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
Check function on the telephone
Work time (WT)
Removing and installing empty housing, roof aerial
Refer to AIR
Description
Recharging high-voltage battery unit (to high voltage
charging socket)
Labor Allowance
And:
61 21 528
And, as necessary:
84 10 005
And:
65 20 530
And, additionally for the:
e-Vehicles
Labor Operation
61 25 910
Refer to AIR
And, for:
All applicable Models except the G12 (7 Series Sedan)
Labor Operation
84 10 811
Description
Replacing telematics communication box (after vehicle
diagnosis)
Labor Allowance
Refer to AIR
Or: as applicable
84 10 851
Replacing telematics control module under headlining
(after vehicle diagnosis)
2
Refer to AIR
Or, for the:
G12 (7 Series Sedan)Labor Operation
84 10 821
Description
Replace telematics control unit (equipment spec. w/o
slide/tilt sunroof) (after vehicle diagnosis)
Labor Allowance
Refer to AIR
Or:
Replace telematics control unit (equipment spec. w/
slide/tilt sunroof) (after vehicle diagnosis)
Refer to AIR
Replacing the telematics control unit under the
headlining (with slide/tilt sunroof) (after vehicle
diagnosis)
Refer to AIR
Replacing the telematics control unit under the
headlining (with panorama glass roof) (after vehicle
diagnosis)
Refer to AIR
Labor Operation
Description (See below)
Labor Allowance
61 00 730
Programming / encoding control unit(s)
Refer to AIR
84 10 826
Or:
84 10 851
Or:
84 10 852
And:
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.
Work time labor operation code 84 10 005 is not considered a Main labor operation; however, it does
require an individual punch time and an explanation on the repair order and in the claim comments.
Programming and Encoding - Vehicle Control Units
During this workshop visit, the affected vehicle may also show one or more programming and encoding
Technical Campaign repairs open, the programming and encoding procedure may only be invoiced one
time.
Programming and encoding the vehicle control units by performing and submitting for one of
the open Technical Campaigns instead. Please be sure to also perform any additional work
(before and/or after) the campaign repairs require and/or close the remaining open
programming and encoding Technical Campaign repairs as outlined in the corresponding
Service Information Bulletin.
Only if the above open Technical Campaign repair situation does not apply, then claim for programming
and encoding the vehicle control units by claiming flat rate labor operation 61 00 730 in conjunction with
performing an applicable repair and Defect Code above.
3
Programming and Encoding (Additional Work, RO and Claim Comments Required)
The programming procedure automatically reprograms and encodes all vehicle control modules which
do not have the latest software I-level. If one or more control module failures occur during this
programming procedure:
Please claim this consequential control module-related IRAP recovery procedure (when applicable
as required)/repair work under the defect code listed in this bulletin with the applicable AIR labor
operations.
Please explain this additional work (The why and what) on the repair order and in the claim comments
section
For control module failures that occurred prior to performing this programming procedure:
When covered under an applicable limited warranty, claim the applicable test plan and the
corresponding control module-related repair work using the applicable defect code and labor
operations in AIR (including diagnosis with separate punch times).
4
- Affordable Solution for Professional-grade Car Diagnostics & Repair: As the budget-friendly OBD2 scanner under $300, the VD70 Lite car diagnostic tool offers 31+ hot resets, full bi-directional controls with 4000+ active tests, all system diagnostics, 8-in-One live data graphing (export as CSV Export/Recording/Playback), CAN FD & DoIP protocols, and long-term free update. Additional features include Auto VIN & Auto Scan, diagnostic report sharing/printing, with coverage for over 10,000 vehicle models worldwide, suitable for DIYers, Car Owners, Technicians, and Mechanics on car repairs and maintenance tasks.
- OBD2 Scanner with Full Bi-directional Control: The Bidirectional scan tool VIDAGTOOL VD70 Lite performs 4000+ active tests that can send execution commands to the ECU module and identify the repair status, covering for windows, doors, ABS, valves, wipers, headlights, rear mirrors, sunroof,and more in-vehicle components. This bidirectional OBD2 scanner is a must-have diagnostic tool for auto technicians and mechanics on a budget! The available function tests vary by model—please check compatibility via vdiagtool2 @ outlook . c o m before purchase.
- OE All Systems Diagnostics & 8-IN-One Data Graphing: VD70 Lite is a dealer-level car scanner diagnostic tool with Auto VIN that can do in-depth diagnostics for 100+ modern car brands, covering all systems including engine, transmission, airbag, ABS, ESP, TPMS, radio, etc, to read/clear code, view live data, freeze frame, and read ECU info. This advanced OBD2 Scanner with 8-in-one data graphing and detailed diagnostic reports makes data viewing more intuitive, ensures quickly accurate repairs by identifying issues, and easily masters the car situation.
- Stay Ahead with 31+ Reset for Faster & Easier Repairs: VDIAGTOOL VD70 Lite scanner for car meets almost all daily maintenance needs for both home mechanics and workshops as a professional automotive scan tool. It can perform Oil Reset, ABS Bleed, Crank Sensor Relearn, Idle Relearn, Injector Coding, Window Initialization, HVAC Calibration, Suspension Calibration, Throttle Matching, etc, ensuring efficient repairs and complete maintenance. Besides, long-term free updates keep its functionality and broad vehicle compatibility up to date. Functions vary by model, please send us the Vehicle Model, Year, VIN for compatibility before purchase.
- 150+ Models, 10000+ Car Coverage & 22 Languages：As a powerful car computer diagnostic tool, VD70 Lite helps you to quickly troubleshoot issues for 95% of US, European, and Asian vehicles. Supporting 22 languages makes it a global car diagnostic scanner for auto mechanics worldwide without language barriers. Note: Simply provide your tool’s S/N and reach out to vdiagtool2 @ outlook . c o m to change the menu language.
- Smarter Diagnostics, Broader Coverage, Greater Value Than $1,000+ Tools: The game-changing VD80BT OBD2 scanner delivers 4000+ active tests, 42+ hot services, advanced ECU coding, PMI & V.A.G Guided—all in one scanner for car. With OE-level full system scan and intelligent topology mapping that cuts diagnostic time by up to 50%, you'll work smarter and faster. Supporting FCA
AutoAuth, CAN FD & DoIP protocols, this car scanner covers over 10,000 vehicle models worldwide. Built for serious pros and DIYers, it features 8" HD screen & 4+64GB storage, 7.3V fast charging with long-lasting battery, and 33–66ft stable wireless connection—making it the most complete diagnostic solution you’ll ever own - Intuitive Topology Map, Fast Locate Faults: Why waste time clicking module by module? VD80BT car diagnostic scanner takes diagnostics to the next level with its intuitive Topology Map—a premium feature usually found in $1000+ obd scanner. With one tap, it performs all system scan and presents all modules and DTCs in a clear, color-coded layout, boosting diagnostic efficiency by up to 200% and helping you locate issues instantly and reduce repair time and costs. Whether you're a pro boosting efficiency or a beginner learning diagnostics, this obd2 scanner diagnostic tool makes fault-finding faster and smarter for you. Note: varies by vehicle model, please check compatibility before purchase
- Wireless Connectivity Simplifies Bi-Directional Control: With 4000+ active tests, including throttle reset, window calibration and solenoid check, VD80BT bidirectional scan tool lets you diagnose and verify functions faster, smarter, and more efficiently. This scanner for car redefines flexibility in bi-directional control through a fully wireless connection, freeing you from the constraints of wired car diagnostic tool in the workshop. Imagine actively controlling components like the A/C clutch, fuel injector, ABS pump, or radiator fan within a wireless range of 33–66ft around the vehicle—all while enjoying stable, high-speed wireless diagnostic and real-time data monitoring
- 42+ Hot Services, One Powerful Scanner for Car: Why pay a shop $100 just to reset a light? VD80BT car scanner diagnostic tool gives you 42+ hot services from basic resets to advanced maintenance tasks like Crank Sensor Relearn, Injector Coding, ABS Bleeding, Oil Reset, Throttle Relearn, EPB, BMS Reset, Tire Size Reset and more. Plus, it offers 100+ vehicle-specific features including Idle Relearn, VIN Write, Brake Fluid Replacement, Fuel Trim Reset, ABS Initialization and more. Whether you’re resetting TPMS or fixing a stubborn SAS, this car computer diagnostic reader delivers shop-grade precision at a fraction of the cost. Varies by model. Send VIN to verify compatibility before purchase
- OE-Level Full System Diagnostics in Your Hands: Dominate diagnostics like a dealership with VD80BT scan tool for all vehicles, delivering factory-grade scanning for aLL systems—including ABS, SRS, ECM, TCM and more. View up to 8 PID graphs simultaneously to quickly catch intermittent issues and troubleshoot with confidence. Easily read and clear DTCs, retrieve freeze frame data, and run active tests for faster, more accurate repairs. It’s like having a dealership-grade scan tool in your pocket, complete with data playback and CSV export for in-depth analysis. Stop guessing and start fixing with surgical precision—professional diagnostics made simple and portable. Check compatibility Please
- 【OE-Level Full System Diagnostics-Lifetime F*REE Software Updates】The VDIAGTOOL D200 OBD2 Scanner for cars is a all system bidirectional scan tool that enjoy lifetime f*ree software updates, delivers complete system coverage. reading/clearing codes across engine, transmission, ABS, SAS, EPB, TPMS plus full access to body, chassis, powertrain and all control modules. This D200 Bidirectional car scanner works with most 1996+ OBD2 gasoline and hybrid cars and light trucks. It does NOT support pure electric and heavy-duty trucks. PLEASE CHECK COMPATIBILITY BEFORE ORDERING or Contact us with VIN to confirm compatibility.
- 【Supports OBD2 Full Functions-ZERO Subscription Fees】D200 Bidirectional OBD2 Scanner is a upgarde of universal car code reader. It supports OBD2 full functions to help you turn off the annoying instrument fault indicator, such as read/clear codes, O2 sensor test, I/M readiness, on-board monitor test, datastream, freeze frame, E-VAP system test, and retrieve vehicle information. This professional obd2 scanner diagnostic tool can full access to diagnostics, reset tools and maintenance features with a single payment. NOTE: The fault code can only be cleared after the vehicle's malfunction has been repaired; please ensure the vehicle issue is fixed before clearing the code.
- 【D200 Hidden 2 Advantages: 1. $169 Expandable 49+ Advanced Resets. 2. $199 Get J2534 P*a*s*s-Thru Programming】Your core car diagnostics and 26 reset remain lifetime f*ree for everyday maintenance. When you need deeper repair capability, upgrade with 3-year access for $169 in Store on VDIAGTOOL App, gaining 49+ advanced resets. D200 configured with J2534 hardware, upgrade only when you need without replacing the entire device. You also can Lifetime Unlock for $199 in Store one-time, perform module programming, software re~flashing and ECU data updates directly. Supports 17+ major brands, including for BMW, for Audi, for GM, for Ford and more. Note:D200 does‘t provide any OE software.
- 【Full Bidirectional Control / Active Tests】The D200 car scanner diagnostic tool is a true bidirectional scan tool that lets you send commands directly to the vehicle’s ECU for active tests. Quickly test fuel pumps, relays, solenoids, injectors, cooling fans, windows, sunroofs and more to verify operation instantly. Get dealership-level diagnostic control at a fraction of the cost (ofter $100-200$ per diagnostic visit), reduce guessworkand confirm repairs faster, avoid unnecessary parts replacement, towing fees and wait times.
- 【26 F*ree Essential Reset & Relearn Functions – Everyday Maintenance Made Easy】Handle common maintenance and repair jobs without visiting the shop. The D200 code readers & scan tools includes 26 f*ree high-demand reset functions, including Oil Reset, EPB Service, SAS Calibration, ABS Brake Bleeding, Throttle Relearn, Injector Coding, Headlight Adjustment, Tire Size Reset and more. Perfect for home car owners, mechanics and DIYers – just plug and diagnose anytime, anywhere! Note: Service functions vary by vehicle model—please confirm compatibility.
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API