NHTSA ID Number: 10124928
Manufacturer Communication Number: Dealer Letter-FA
TSB/Document Date: 2017-12-05
Summary
We would like to inform you of upcoming Service Action 20U3. Please refer to the attached Campaign Data Sheet for additional information.
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)
- 💝【Questions? We’re Here Anytime】MK808S is a...
- 🔥🔥🔥【2026 NEWLY RELEASED BI-DIRECTIONAL...
- 【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel...
- 【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The...
- 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent...
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
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: Dealer Letter-FA
Replacement Service Bulletin Number:
MFR Communication Date: 2013-05-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Audi
of America, Inc.
Audi
of America, Inc.
3800 Hamlin Road
Auburn Hills, MI 48326
+1 248 754 5000
www.audiusa.com
Date: May 15, 2013
To: Audi
Dealer Principal, Service Manager, and Parts Manager
From: Audi
Product Compliance
Subject: Upcoming Service Action 20U3
2010-2012 Model Year Audi
A3 TDI® Clean Diesel Engine
Vehicles
Install Misfueling Guard
Dear Audi
Dealer Principal, Service Manager, and Parts Manager:
We would like to inform you of upcoming Service Action 20U3. Please
refer to the attached Campaign Data Sheet for additional information.
If you have any questions or require additional assistance, please contact
Warranty. As always, any press inquiries should be directed to Audi![]()
Public Relations.
Audi
Product Compliance
Attachment: Campaign Data Sheet (1)
20U3/L9
USA
CAMPAIGN DATA SHEET
CAMPAIGN TYPE
SAGA CODE
MARKET(S)
AFFECTED VEHICLES
TOPIC
SERVICE ACTION
20U3
United States and Canada
Certain 2010-2012 model year Audi
A3 TDI® Clean Diesel Engine vehicles
Install misfueling guard
PROBLEM DESCRIPTION
As diesel engine passenger vehicles become more popular, auto
manufacturers have seen an increase in the number of misfueling cases
where diesel engine vehicles are mistakenly fueled with gasoline. The
resulting fuel system contamination can lead to costly repairs that are not
covered under warranty.
CORRECTIVE ACTION
As an additional safeguard to help prevent a gasoline fuel pump nozzle
from being used to fuel a TDI® Clean Diesel engine vehicle, dealers will
install a misfueling guard in the fuel filler neck of vehicles affected by this
action. Additionally, a new fuel filler neck cap will also be installed.
Please note: The misfueling guard is designed to prevent a gasoline fuel
pump nozzle from entering a vehicle’s fuel filler neck, thereby reducing the
risk of fuel system contamination from gasoline. Even with this inhibitor
installed, remind anyone who refuels the vehicle that it requires diesel fuel,
and to double-check the fuel pump to ensure the correct fuel is selected
before filling the tank.
CUSTOMER NOTIFICATION DATE
On or about May 28, 2013
ELSAWEB VISIBILITY DATE
On or about May 21, 2013
AIM VISIBILITY DATE
On or about May 21, 2013
TOTAL AFFECTED
USA: Approximately 9,800
VEHICLE COUNT
DEALER INVENTORY
CPO INVENTORY
APPROXIMATE REPAIR TIME
SPECIAL TOOLS NEEDED?
PARTS REQUIRED
COMPLETION FACTOR/REPLACEMENT RATE
(TARGETED ALLOCATION INFORMATION)
Canada: Approximately 1,000
USA: 0
CANADA: 0
USA: 31
CANADA: 2
Up to 30 TU
SEE CAMPAIGN WORK PROCEDURE
(1) Misfueling Guard Kit 5K0 201 400
Completion Factor: .875 / Replacement Rate 100%
IMPORTANT! To ensure that ALL of your personnel are aware of this action before receiving questions from any customer, please share this information with ALL personnel
who have campaign-related responsibilities, including service writers, technicians, parts employees, warranty administrators, etc. See the campaign circular on ElsaWeb for
the most current repair information. Refer to the campaign circular for complete repair and claiming instructions.
PROJECTED DEALER RETURN BLOCK DATE
INITIAL PARTS ALLOCATION DATE
TECHNICIAN TRAINING REQUIRED?
EXPIRATION DATE
ADDITIONAL INFORMATION
February 25, 2014
May 16, 2013
NONE – SEE WORK INSTRUCTIONS IN CAMPAIGN CIRCULAR
May 31, 2015
The Targeted Allocation program will be used in support of this campaign.
IMPORTANT! To ensure that ALL of your personnel are aware of this action before receiving questions from any customer, please share this information with ALL personnel
who have campaign-related responsibilities, including service writers, technicians, parts employees, warranty administrators, etc. See the campaign circular on ElsaWeb for
the most current repair information. Refer to the campaign circular for complete repair and claiming instructions.
Frequently Asked Questions (FAQ)
Service Action 20U3
SUMMARY
Campaign Code: 20U3
Service Action Expiration Date: May 31, 2015
Affected Vehicles: Certain 2010-2012 model year Audi
A3 with TDI® Clean Diesel Engine
Problem Description: As diesel engine passenger vehicles become more popular, auto manufacturers have seen
an increase in the number of misfueling cases where diesel engine vehicles are mistakenly fueled with gasoline. The
resulting fuel system contamination can lead to costly repairs that are not covered under warranty.
Corrective Action: As an additional safeguard to help prevent a gasoline fuel pump nozzle from being used to fuel a
TDI® Clean Diesel engine vehicle, dealers will install a misfueling guard in the fuel filler neck of vehicles affected by
this action. Additionally, a new fuel filler neck cap will also be installed.
Please note: The misfueling guard is designed to prevent a gasoline fuel pump nozzle from entering a vehicle’s fuel
filler neck, thereby reducing the risk of fuel system contamination from gasoline. Even with this inhibitor installed,
remind anyone who refuels the vehicle that it requires diesel fuel, and to double-check the fuel pump to ensure the
correct fuel is selected before filling the tank.
What is the parts allocation plan for this service action?
• Parts allocation will take place prior to customer notification.
• The Targeted Allocation program will be used in support of this campaign. Please refer to the Campaign
Data Sheet for information regarding the Completion Factor/Replacement Rate for your targeted allocation
calculations.
• If additional parts are required for critical cases, please contact the Parts Specialists at 800-767-6552.
Is a loaner vehicle being covered under this action?
No. A loaner vehicle is not being covered under this action.
Is towing being covered under this action?
No. Towing is not covered under this action.
What should dealers do if they have any affected vehicles in inventory?
Dealers can use their most current AIM report to identify any affected vehicles that may be in their inventory. In
the interest of customer satisfaction, affected vehicles should be kept in a secure area where they cannot be
made available for sale, lease, trade or demo use until this work has been performed.
Can a dealer deliver a new vehicle affected by this action to a customer before the repair has been
completed?
No. In the interest of customer satisfaction, please ensure that every new vehicle affected by this action is
repaired prior to delivery.
What are some additional precautions that any TDI® Clean Diesel owner can take to help ensure the
vehicle is fueled correctly?
Some things owners can do to help ensure their vehicle is fueled correctly are:
•
Become familiar with the refueling information found in the owner’s manual that came with your vehicle.
IMPORTANT!
This FAQ is intended to provide supplementary information regarding this action. For additional information, please refer to the campaign circular posted on ElsaWeb and ServiceNet. To
ensure that ALL of your personnel are aware of this action before receiving questions from any customer, please share this information with ALL personnel who have campaign-related
responsibilities, including service writers, technicians, parts employees, warranty administrators, etc.
Page 1 of 2
20U3/L9![]()
•
Make certain that everyone who drives your vehicle is aware that it must be refueled with DIESEL FUEL
ONLY. Filling the tank with the wrong kind of fuel can cause damage that is not covered under warranty.
•
Be vigilant at the fueling station -- get into the habit of double-checking the fuel pump before you begin
filling the tank. How one fueling station identifies their diesel pumps can be very different from how another
station identifies theirs. Doing so can go a long way in preventing the wrong fuel from being put into your
vehicle.
Who should dealers contact if they have additional questions?
Dealers with additional questions about this or any other campaign should contact Warranty. Press inquiries
should be directed to Audi
Public Relations.
IMPORTANT!
This FAQ is intended to provide supplementary information regarding this action. For additional information, please refer to the campaign circular posted on ElsaWeb and ServiceNet. To
ensure that ALL of your personnel are aware of this action before receiving questions from any customer, please share this information with ALL personnel who have campaign-related
responsibilities, including service writers, technicians, parts employees, warranty administrators, etc.
Page 2 of 2
20U3/L9![]()
- 🔥🔥🔥2026 New Functions Making X7HD the Top Dog - Big Surprise!!! ANCEL X7HD truck scanner 10 major functional advantages .✅>Full HDOBD/OBD2 Function ✅>ALL System Diagnostic ✅>42+ Reset Function ✅>Active Test / Bi-Directional Control✅>ECU Coding✅>Graphing Live Data✅>Wide Compatibility ✅>2 Yrs Free Update✅>Remote Operation✅>Bluetooth 5.0 & Wifi In addition, 8 major hardware advantages: ✅>6000 mAh✅>10.1 inch Tablet✅>2G RAM
✅>32G ROM (Expandable to 128GB)✅>Data Record & Replay & Print✅>Android 10.0✅>Bluetooth 5.0 & Wifi✅>14 Languages - 🚛OEM DPF Forced Regen & Cylinder Cutout Test & more - ANCEL X7HD diesel scanner diagnostic tool not only supports DPF regeneration, DPF reset, DPF related information reset, DPR state reset, DPD forced regeneration etc, which helps you better solve the exhaust aftertreatment system problems, but also supports activate motor to do exhaust air in ABS Automatically. Moreover, it features TPMS activation, cylinder cut-off and learning functions
- 🚛Advanced ECU Coding & Programming - ANCEL X7HD 10.1inch truck scanner diagnostic tool is equipped with advanced ECU coding, supports Level calibration, Idle speed learning and Adjustment, Camshaft timing control learning, Control unit adaptations, Injector Codes, Read/Write VIN, Road speed limit optional vehicle speed set, etc... PLEASE NOTE that ECU codes are not compatible with all vehicles, please send us your VIN# to check vehicle compatibility
- 🚛42+ Reset Functions & Bidirectional Control - 2026 newest top heavy duty truck scan tool, comes with 42+ special services (ECU, Speed Limit and Idle Reset, Oil Reset, Injector Coding, EPB, ABS, SRS, Suspension, Throttle, etc. and always keep growing), which meet all your various needs for service and maintenance
- 🚛10 Inch All Systems Diesel Scanner & Full HDOBD/OBD2 Modes - ANCEL X7HD diesel truck scan tool supports all systems scan, such as Engine, Brake, Retarder, TECU Transmission, Tachograph, ABS, SRS, TPMS, EPB, SAS, ESP, and other vehicle systems, comes with 10 obd2 service modes: read/erase error codes, Data Stream, I/M Readiness, Vehicle Information, Actuations, DTC Lookup, EVAP, view freeze frame, etc
- 【Extensive Compatibility】HD601 heavy duty truck scanner supports 12V & 24V commercial vehicles and all major truck models that comply with standard protocols (SAE J1939, SAE J1708, ISO 14230-4, ISO 15765-4 and ISO 9141-2, ISO 27145-4 and Euro6). Fits for Cummins
, Paccar
, Detroit, Caterpillar
, Freightliner
, International
, Peterbilt
, Ford
Heavy Truck, Class 4-Class 8 trucks, etc. It also supports engine diagnosis on most cars, minivans, light trucks and pickups - 【 Full System Diagnostic】HD601 Diesel Scanner supports all system scans of heavy trucks compliant with standard protocols SAE J1939 & J1708, such as Engine, ABS, Transmission, Braking System, ESP, EPS, Fuel System, etc, It is a great scan tool for Cummins
, Caterpillar
, Detroit, Caterpillar
, Maxxforce, Bendix
,Wabash
, Wabaco, Haldex
, Allison, Eaton
heavy trucks, With this truck tool, you can get deep analysis data about the system and do some repairs by yourself, saving much time and money. Note: Only heavy truck vehicles that comply with the above protocol can diagnose the entire system - 【Enhanced Diesel OBD Scanner】The HD601 Diesel OBD Scanner offers unparalleled diagnostic capabilities for heavy-duty trucks. Beyond code reading, clearing, and live data display, it retrieves vehicle information, freeze frames, and DTCs. With 6, 9, and 16 pin cables, it ensures compatibility with various engines. This scanner's real-world testing prowess ensures comprehensive support for a wide array of heavy-duty truck engines, making it an indispensable tool for truck diagnostics
- 【DTC Library】+【Life Time Free Update】The built-in DTC library allows you to retrieve the codes directly without searching for the definition in the book. Whether you are a professional mechanic or a DIY car owner, HD601 diesel scanner explains the existing problem, makes it easier for you to understand code definitions and helps you locate vehicle faults. Note: This device cannot directly solve the fault. Plus, you get a lifetime free internet updates, so you always have the latest software for diagnostics in English and Spanish languages.
- 【Friendly Design, Easy of Use】This scanner is plug and play, simple and convenient, and very friendly for beginners. With improved buttons for easy menu navigation. The excellent 2.8 inch LCD color screen makes it easy to view the displayed results and gives you a better overview of your car's problem areas and the identified codes. In addition, the processor is super-fast and responds without lagging, providing maximum comfort and efficiency in diagnostic and service work
- Why NEXAS NL102 Truck Scan Tool? The NL102 outshines other truck scanner with its extensive diagnostic features. It offers full system diagnostics for major trucks meeting standard protocols, along with complete OBD2 functionality. Beyond read fault codes, clear codes and live data display, it enables vehicle info retrieval, freeze frame capture, and DTC lookup. Equipped with 6-pin, 9-pin, 16-pin connectors, it ensures broad truck compatibility. Plus, enjoy lifetime free updates in English, Spanish, and French, keeping your diagnostic scanner software current.
- Wide Compatibility - Friendly Reminder: To avoid compatibility issues, please confirm with us via Amazon Messages before purchasing. This heavy duty truck scanner is compatible with all heavy-duty trucks and semi that adhere to standard protocols (J1587, J1939, J1708). It covers a wide range of vehicle models, including Cummins
, Detroit, Caterpillar
, Freightliner
, International
, Kenworth
, John Deere, Peterbilt
, Sterling, Mack
, Paccar
, Western Star
, Mercedes-Benz
, Volvo
, Scania, MAN, Renault, ERF, Foden, Seddon-Atkinson, Iveco, DAF, SISU, STEYR, ISUZU
etc. Equipped with 6-pin, 9-pin, and 16-pin connectors for versatile device compatibility, ensuring stable plug-and-play connections. - Save Hundreds of Money for All Heavy Duty Trucks – This diesel diagnostic scanner supports accurate full-system scans for all heavy-duty trucks that comply with standard protocols (J1587, J1939, and J1708). It can read and clear trouble codes across a range of vehicle systems, including the engine, transmission, instrument panel, drivetrain, brake system, suspension, ABS, ESP, EPS, fuel system, etc. The truck scanner communicates directly with your truck's computer to provide real-time data stream analysis, letting you pinpoint issues with precision. This cuts down on waste from unnecessary part replacements, saving you time and hundreds or even thousands of dollars.
- All OBD2 Functions + Battery Health Monitoring – Unlike many obd2 scanners on the market that only cover partial OBD2 features, ours gives you full OBD2 capability: read & clear codes, live data, freeze frame data, I/M readiness checks, EVAP tests, on-board monitor, O2 sensor tests, vehicle info, and DTC lookup. That means more detailed insights for pros and DIYers alike. The NL102 isn't just a code scanner – it's a battery saver. Regularly check your car's battery health, and catch issues before it dies completely. No more unexpected no-starts in the driveway or on the road. It diagnoses battery condition accurately, helping you avoid costly last-minute repairs.
- Plug and Play & One-click for DTC: NEXAS diesel scanner is user-friendly. It comes with an intuitive screen and easy-to-understand interface, making it accessible even for non-professionals to get started. And the built-in DTC library in the code reader allows you to directly retrieve codes without searching for definitions in books, making it easier to understand the code definitions and solve problems more quickly.
This product presentation was made with AAWP plugin.
Last update on 2026-05-13 / Affiliate links / Images from Amazon Product Advertising API




