Loading...

NHTSA ID Number: 10177753

Manufacturer Communication Number: 21A4S4TCHREP727

TSB/Document Date: 2020-08-06


Summary

Vehicle Preparation Section: REMOVED: "Perform TSB 2058096/1 '91 AudieBay logo connect has no function, SOS LED is off, and SOS warning message in FPK' Perform MMI Menu Reset: 5F-Information Electronics >> Guided Functions >> Basic Settings >> Reset MMI Menu Settings Deactivate privacy mode: Main Menu >> Privacy >> Activate Privacy Settings (Turn off) Turn Vehicle Off and allow Bus Sleep Cycle


2021

A4/S4/A4 allroad
AudieBay logo Pre-Delivery Inspection
Stock No.

Dealer Number

R.O. No.

VIN

Road test mileage out

Road test mileage in

Reminders
 All items must be completed prior to customer delivery by a certified AudieBay logo technician
AudieBay logo recommends using an AudieBay logo approved battery charger to prevent excessive battery discharge during inspection
 Guided Fault Finding must be used, session must be completed and sent to GFF Paperless
 Total PDI Test must be completed prior to any other work involving the scan tool (special function tab -> Total PDI Test)
 Start Guided Fault Finding with the engine running to ensure control modules in transport mode are identified
 For items marked with *, please refer to the PDI Technician Reference Document posted on ServiceNet for additional information

 For items marked with **, follow instructions for stock inventory vehicle

Vehicle Preparation

Interior

 Check Elsa for open campaigns and updates

 Verify operation of all seat belts and latches

 Verify AudieBay logo phone box customer registration form is present
in vehicle and add the serial number from Elsa (if equipped).
See TSB 2051720

 Check operation of window, lock, and seat controls*

 Perform any open campaigns*
 Perform diagnostic work*
 Install front license plate carriereBay logo (if necessary)*

 Inspect mirrors for proper operation*
 Check rear view mirror operation*
 Verify operation of all interior lights
 Verify operation of heated seats
 Verify operation of heated rear seats (if equipped)

Exterior

 Verify operation of ventilated seats (if equipped)

 Check all key buttons and features*

 Verify proper operation of climate control*

 Inspect exterior for damage, dings, dents and surface
scratches. Report and repair any damage before delivery to
the customer

 Inspect operation of all power outlets*

Lighting and Windshield

 Verify operation of front Passenger Occupant Detection
System

 Test exterior lighting functions

 Check panoramic sunroof and sunshade operation*
 Verify the glove compartment opens and closes properly

 Test windshield washers. Correct aim if necessary

Settings

Trunk Inspection

 Set Time source setting to “GPS” and set Auto daylight savings time to “on”*

 Verify trunk is operational

 Verify operation of MMI® touch

 Verify operation of emergency release handle
 Install wheel bolt cover removal tool from PDI kit into trunk
tool kit*
 Verify tool kit is installed securely in luggage compartment
 Verify inflatable spare tire and compressor are present

 Set Time to “Automatic setting” and “Automatic time zone”
 Verify and set language and measurement units*
 Verify Speech Dialog System is operating*
 Set “Entertain. Fad.” in Parking aid to an audible level*

 Set spare tire pressure*

 Set “Music volume while parking” to medium*

 Check battery clamps for proper torque*

 Set dealership location in navigation (if equipped)*

Effective 7-27-2020-US
Version 1.1

PRE-DELIVERY INSPECTION (PDI) | 1

2021

A4/S4/A4 allroad
AudieBay logo Pre-Delivery Inspection
Settings (continued)

Driver Assistance

 Turn off Manual Speed Warning (if equipped)*

 Verify cruise control/ACC functionality (if equipped)
 Verify AudieBay logo side assist functionality (if equipped)

Media / Radio / SAT

 Verify operation of parking system (if equipped)*

 Verify operation of aux. input

 Verify all vehicle Head-up display functionality (if equipped)*

 Insert SD card and test function of all slots
 Verify HD Radio is turned “off”*

 Activate NAV and follow directions back to dealership (if
equipped)

On-Hoist Inspection

Post-Road Test Inspection

 Remove transport suspension blocks (follow ELSA instruction)

 Verify SOS button is green and Roadside assistance button
LED will remain off

 Check steering, boots, brake system, hoses, tires and wheels
for damage
 Check underside of vehicle for fluid leaks and loose components
 Inspect wheel bolts for proper torque*
 Install wheel locks (if equipped)
 Install wheel bolt covers and center caps as supplied*
 Set and store tire pressures for either sold vehicle OR stock
inventory vehicle*

 It may take up to 20 minutes for the emergency call system to activate (LED turns green) after flight/transport
mode deactivation
 The vehicle must not be delivered to the customer if the
emergency call function has not been successfully activated (LED lights up in green)
 Interrogate fault memory and upload Diagnostic Log to GFF
Paperless Server
 Check service interval and verify correct interval is displayed

Driving Performance

 Check engine oil level*

 Check horn operation

 Check all fluid levels and top off if necessary

 Verify hold and release of electronic parking brake

 Ensure the yellow tire pressure tag is installed on the steering wheel

 Verify engine Start-Stop System functionality*
 Verify engine performance and acceleration*
 Verify transmission operation, including shift paddles
 Test drive vehicle applying brakes several times*

 Apply 30 Day Inventory Maintenance Sticker**
 Install showroom charger to ensure battery remains
charged at all times**

 Check steering/tire alignment

AudieBay logo connect® (USA ONLY) (if equipped)

 Check for squeaks, rattles and wind noise. Repair any
squeaks, rattles or wind noises before delivery to the customer

 Turn on the Wi-Fi® hotspot (if equipped)*

 Calibrate rear view mirror*
 Verify quality of radio reception in AM/FM/SiriusXM® bands

 Check Wi-Fi® hotspot visibility. No data available at PDI (if
equipped)*
 Enable satellite map view for navigation (if equipped)*

Technician
I certify that all operations have been completed and this vehicle has been prepared in accordance with AudieBay logo Procedures and
Quality Standards, and has met the standards for Perfect Delivery.

Technician Signature

Effective 7-27-2020-US
Version 1.1

Last 8 of VIN

Completion Date

PRE-DELIVERY INSPECTION (PDI) | 2

1

Bestseller No. 1
iCarsoft Bidirectional Scan Tool, CR Max OBD2 Diagnostic Scanner for All Vehicles, Full System 49 Resets+46 Extra Services, 40000+Active Tests,ECU Coding, Battery Registration, Oil Reset/ABS,CAN FD
  • WHY CHOOSE THE 2025 CR MAX -Upgrade the latest diagnostic...
  • NEWEST IN INNOVATION FULL OBD2 SERVICES- iCarsoft auto car...
  • 49 RESET+ 46 SERVICES- Performs: Oil Reset...
  • REVOLUTIONARY 40000+BIDIRECTIONAL ACTIVE TESTS: Upgraded CR...
  • ECU CODING+ BATTERY REGISTRATION- Powerful ECU Coding...
SaleBestseller No. 2
iCarsoft E660 2026 Version 4 Systems OBD2 Scanner, ABS SRS Engine Transmission Car Code Reader with 6 Reset Service Clear Fault Codes Battery Test Diagnostic Scan Tools Lifetime Free Upgrade
  • 【Looking for More Professional Vehicle Scan...
  • 【OE-Level 4 Systems OBD2 Scanner】iCarsoft E...
  • 【4 Systems Diagnosis for 10000+ Vehicles】 iCarsoft E...
  • 【6 Reset Services】iCarsoft E660 2026 Upgrade Version is...
  • 【118+ Real Time Record & Live Graph View】iCarsoft E...

Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API


 


If the PDF is very large, it may not load in the preview below.

Download PDF [527.27 KB]


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)


Search NHTSA Database for Recalls

View Latest Recalls


Search NHTSA Database for Vehicle Investigations

View Latest Vehicle Investigations


Search NHTSA Database for Vehicle Complaints

View Latest Vehicle Complaints


TSB/Document ID: 21A4S4TCHREP727

Replacement Service Bulletin Number:

MFR Communication Date: 2020-07-27

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



SaleBestseller No. 1
TOPDON Bidirectional Scan Tool, 2026 New ArtiDiag900 Lite Automotive Diagnostic Tool for Full System, Scanner for Car with Active Test, 8 Reset, Wireless OBD2 Scanner Diagnostic Tool for All Vehicles
  • [2026 Top-Tier Hardware and Software Upgrade]: Topdon ArtiDiag900 Lite scanner has enhanced hardware and latest features, including Android 11.0, 5x faster CPU, 10000mAh battery for 12 hours of continuous operation, stable wireless diagnosis with Bluetooth 5.0, 8-inch touchscreen. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide
  • [TOPDON Bidirectional Scan Tool]: This bidirectional obd2 scanner sends commands to the vehicle's ECU for active testing, enabling users to accurately and quickly locate faulty components such as injectors, coolant pumps, windows, wipers, headlights, mirrors, etc. The bidirectional control scanner is the ideal choice for workshops/automotive repair shops as it significantly reduces mechanic's diagnostic time.
  • [Wireless Bluetooth Diagnostic Experience]: The AD900 Lite scan tool comes with a Bluetooth 5.0 VCI, supporting a wireless diagnostic range of up to 33 feet (10 meters), allowing you to diagnose without being confined to cables or tight spaces. Stable and fast wireless diagnosis provides a comfortable repair environment. It also offers VCI cables to increase connectivity options.
  • [DTC Repair Guide Function]: Easily diagnose issues with your vehicle and receive guidance on repairs with the topdon scan tool's fault code definitions for all systems,maximize your diagnostic capabilities. This function is compatible with ChryslereBay logo/DodgeeBay logo/JeepeBay logo/FiateBay logo 2010-2014 and expanding with continual updates,the AritDiag 900 Lite car diagnostic scanner is the must-have tool for any technician or DIY enthusiast.
  • [OE-Level Full System Diagnostics]:AritDiag900 Lite full system diagnostic scanner can scan ALL available modules(Engine, Transmission, Airbag, ABS, ESP, TPMS, Gateway, Steering, Radio, Air conditioning, ect.) to✔read ECU info, ✔read/clear codes, ✔view live data stream, ✔retrieves freeze-frame, ✔perform active tests, and more. With just a simple click, it provides you with accurate and in-depth diagnostics.
Bestseller No. 2
TOPDON ONE Bidirectional Scan Tool, 10.1" OBD2 Scanner with J2534 Pass-Thru and ECU Coding, Over 50 Resets, Topology Mapping Car Diagnostic Tool for All Vehicles
  • Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
  • J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
  • OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
  • 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
  • Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMWeBay logo, VWeBay logo, Au-di, Benz, PorscheeBay logo, ToyotaeBay logo, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
SaleBestseller No. 3
TOPDON TopScan Lite OBD2 Bluetooth Scanner, Bi-Directional All System Diagnostic Tool with AI Assistant, 8 Resets, Repair Guides, Performance Test, FCA AutoAuth & CAN-FD for iOS Android
  • Bi-Directional Control, Quickly Locate Problems: Turn your phone into a professional diagnostic tool. You can send commands from your phone to the ECU to test injectors, cooling fans, headlights, A/C clutch, windows, wipers, and more. See which one doesn't respond. Helps you quickly locate the problem and save time. No need to tear things apart, avoid blind disassembly.
  • Flexible Subscription, Choose Advanced Features as Needed: TopScan Lite provides free-for-life access to core diagnostics, including full system scan, code reading, performance tests, and repair information. After purchase, advanced features (bi-directional control, service operations, live data, code clearing, and AI functions) are free-for-the-first-year. After the first year, if you want to use advanced features, you need to subscribe on a monthly, quarterly, or yearly basis. As new models and reset functions are updated, the tool will also be continuously upgraded.
  • Full System Diagnostics, No Fault Hides: Unlike basic diagnostic tools that only cover 4 systems, TopScan can scan all systems. Read and clear trouble codes, view live data streams, and generate a complete vehicle health report – all issues are clear at a glance. Covers 10,000+ vehicle models and is compatible with 99.99% of vehicles.
  • AI Assistant - TopFix: Think of TopFix as your personal AI mechanic. It leverages a repair database and OEM data to deliver clear, step-by-step repair solutions. Features include AI Q&A, one-click translation, and a full repair log, making your diagnostic process simpler and more efficient.
  • 8+ Hot Resets, Keep Your Car in Top Shape: One-tap resets for oil, throttle, EPB, steering angle, DPF, ABS, BMS, and airbag. It enables car owners to easily perform essential maintenance, ensuring the vehicle stays in optimal condition and extends its service life.

Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API


 


This product presentation was made with AAWP plugin.

Share to...