Service Bulletins
Manufacturer Technical Service Bulletins (TSBs) issued to authorized dealers — software updates, repair procedures, fault-code fixes, and warranty coverage details for current and recent model years.

2021 Audi A4/A5/S4/S5 Instrument Cluster Blank TSB
Audi Technical Service Bulletin 2063913/6 addresses a condition where the driver information system display in the instrument cluster is blank on certain 2021 Audi A4, A5, S4, and S5 models. This issue is due to a hardware defect and is resolved with a software update.

2021-2023 Audi MIL On P045600 Small Leak Detected TSB
Audi has issued Technical Service Bulletin (TSB) 2071199/1 for 2021-2023 A4, A5, S4, S5, and RS 5 models experiencing a "MIL On" with DTC P045600 "Very Small Leak Detected." This bulletin details diagnosis and repair for the NVLD fuel tank pressure sender.

2023 Audi OBD Socket Communication Fault TSB 2070383/2
Audi has released Technical Service Bulletin 97 23 98 2070383/2 for 2023 A4, A5, S4, S5, and RS5 models. This TSB addresses instances where the diagnostic tester cannot communicate with the vehicle via the OBD socket due to damaged contacts, often found during pre-delivery inspection.

2021 Audi A4/A5/S4/S5 Instrument Cluster Blank TSB
Audi has issued Technical Service Bulletin 2063913/5 for 2021 A4, A5, S4, and S5 models experiencing a blank driver information system (DIS) display in the instrument cluster. This TSB outlines a software update to resolve a hardware defect.

2021 Audi A4, A5, S4, S5 Creaking Noise TSB
Owners of 2021 Audi A4, A5, S4, and S5 models may experience a creaking or knocking noise from the rear cabin. Audi Technical Service Bulletin 2071019/1 outlines a repair procedure involving welding in the rear cargo area to resolve this.

2021-2024 Audi Steering Squeak TSB 48 23 43 2055733/4
Audi has issued Technical Service Bulletin (TSB) 48 23 43 2055733/4 to address squeaking noises emanating from the rubber boot of the intermediate steering shaft in 2021-2024 Audi A4, A5, S4, S5, and RS 5 models. This TSB outlines a procedure to reposition the sealing sleeve.

2021 Audi A4/A5/S5 MIB3 Wireless ASI/ITM Fix
This Technical Service Bulletin (TSB 2070573/1) addresses issues in 2021 Audi A4, A5, S5, and RS 5 vehicles where the MIB3 integrated toll module settings are inaccessible or the wireless Audi Smartphone Interface (ASI) is inoperable after campaign 91DZ. A software update is available to resolve…

2021-2024 Audi A5, S5, RS 5 Door Panel Noise TSB
Audi has released Technical Service Bulletin 2066883/2 to address 'noises from front door trim panel' in certain 2021-2024 A5, S5, and RS 5 models. This TSB outlines a repair procedure to eliminate creaking or rattling sounds caused by unfavorable tolerances.

2021 Audi A4, A5, S4, S5 Instrument Cluster Blank Display TSB
If your 2021 Audi A4, A5, S4, or S5 has a blank driver information system display, Technical Service Bulletin 2063913/4 outlines a software update to correct a hardware defect in the instrument cluster. This update, SVM action code 17A036, addresses the issue.

2021-2023 Audi A5/S5/RS 5 Seat Belt Positioner TSB
Audi has released Technical Service Bulletin 72 23 48 2048311/7 to address an issue where the seat belt positioner in 2021-2023 Audi A5, S5, and RS 5 models with S Sport Seats may become intermittently or statically inoperative. A software update is available.

2022-2023 Audi A4/A5 "Drive system: fault" P060C00 TSB
Audi has issued Technical Service Bulletin 2070571/1 for 2022-2023 A4 and A5 models experiencing an EPC light and the message "Drive system: fault" with DTC P060C00. This TSB advises technicians to clear the code and inform customers that a permanent solution is pending.

2022-2023 Audi A5/S5/RS 5 Instrument Cluster Blank TSB
Audi has issued Technical Service Bulletin 90 23 26 2070448/1 for 2022-2023 A5, S5, and RS 5 models experiencing a blank driver information system in the instrument cluster. The TSB states that no repairs are currently necessary and warns against replacing components.

2023 Audi A5 OBD Communication Fault TSB 2070383/1
Audi has issued Technical Service Bulletin 2070383/1 for 2023 A4, A5, S4, S5, and RS 5 models regarding issues with diagnostic testers failing to communicate via the OBD socket. This is often due to damaged contacts in the U31 diagnostic connection.

2021-2024 Audi Suspension Control Module Malfunction TSB
Audi Technical Service Bulletin 2051336/7 addresses a suspension control module malfunction, indicated by a damper control warning lamp and DTC B200FF0. This TSB applies to various 2021-2024 Audi A4, A5, S4, S5, and RS 5 models.

2021 Audi A5/RS5/S5 Emergency Call Malfunction TSB
Audi Technical Service Bulletin 2060197/3 details a fix for the 'Emergency call function: malfunction!' warning in 2021 Audi A5, RS5, and S5 vehicles. This issue is often accompanied by DTCs B18BD11 or B18BD13 in the telematics control module, caused by water ingress leading to a short circuit or…

2021-2024 Audi Instrument Cluster Warning Lights TSB
Audi Technical Service Bulletin 90 23 19 2064789/3 describes an issue where various malfunction indicator LEDs in the instrument cluster may light up sporadically when Adaptive Cruise Control (ACC) is active, even without diagnostic trouble codes (DTCs). This TSB applies to 2021-2024 Audi A4, A5…

2021-2023 Audi A4, A5, S4, RS 5 Creaking Noise TSB
Audi Technical Service Bulletin (TSB) 2062633/2 addresses creaking noises in 2021-2023 Audi A4, A4 allroad, A5, S4, and RS 5 models during braking or steering maneuvers. The TSB details a repair to resolve contact between the longitudinal member and its reinforcement plate.

2021-2023 Audi A4/A5 P045600 EVAP Leak Detected TSB
Audi has issued Technical Service Bulletin 2069833/1 for 2021-2023 A4 and A5 models experiencing a 'MIL on' with DTC P045600, indicating a very small EVAP system leak. This TSB advises technicians to contact the Technical Assistance Center before replacing parts, especially if under warranty.

2021-2023 Audi A4/A5/Q5 MIL On P04F000 Purge Line TSB
Audi has issued Technical Service Bulletin 2069834/1 for 2021-2023 A4, A5, and Q5 models experiencing a Malfunction Indicator Lamp (MIL) illumination and diagnostic trouble code P04F000 related to EVAP system purge line performance.

2024 Audi A5 Seatbelt Microphone DTC B104813
Audi Technical Service Bulletin 2059607/3 informs owners and technicians about Diagnostic Trouble Code B104813, 'Telephone microphone Open circuit,' which may appear in the seatbelt microphone control module (J886) of 2020-2024 Audi A5 Cabriolet vehicles. This TSB clarifies that the DTC is…

2021-2023 Audi A5 Refrigerant Line Part Number Update
Audi has issued Special Notice SM 02-2023 for 2021-2023 Audi A5 models, detailing a change in the refrigerant line part number. This notice instructs dealers to return the older part, 8W0-816-721-AT, by February 21, 2023, and to re-order the new part, 8W0-816-721-BE, for future needs.

2019-2024 Audi A5 Wind Deflector Not Secure TSB 2068367/1
Audi has issued Technical Service Bulletin 2068367/1 for 2019-2024 Audi A5 models regarding wind deflectors that no longer install correctly or remain secure due to broken bearings or latching elements. This TSB outlines a repair using a small parts kit.

2021-2022 Audi A4/A5 Check Engine Light DTC U064000 U064100
Audi has issued Technical Service Bulletin 2069123/1 for 2021-2022 A4 and A5 models experiencing a check engine light with diagnostic trouble codes U064000 or U064100. The issue stems from electromagnetic interference affecting the fuel tank breather system wiring harness.
