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Service bulletins for the 2018 Audi A4 allroad

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

567 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
A911640204303722017-03-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS TECHNICAL SERVICE BULLETIN PROVIDES INFORMATION ABOUT THE OPERATION OF THE AUDI CONNECT SYSTEM.
A911639204201332017-03-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND RESOLVE ISSUES WITH AUDI CONNECT ONLINE DESTINATION SEARCH, GOOGLE EARTH NAVIGATION VIEW, AND INRIX ONLINE TRAFFIC.
A911637204250622017-03-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DETERMINE THE STATUS OF ACTIVATION KEYS (THAT AFFECT THE FUNCTION OF AUDI DRIVE SELECT, CRUISE CONTROL, NAVIGATION, BLUETOOTH, SMARTPHONE INTERFACE AND VOICE RECOGNITION), AND HOW TO UPDATE THEM .
A911635203707332017-03-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS TECHNICAL SERVICE BULLETIN EXPLAINS THAT VEHICLES WITH THE MIB MMI RADIO PLATFORM USE A NEW SDARS CHIPSET THAT RECEIVES RADIO PROGRAMMING FROM A DIFFERENT BAND THAN PREVIOUS PLATFORMS, WHICH MAY AFFECT THE RECEPTION.
A171672203811962017-03-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR.
A171671203811952017-03-02. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR.
A571626202203272017-03-01. Service bulletin. ELECTRICAL SYSTEM. THIS TECHNICAL SERVICE BULLETIN PROVIDES TROUBLESHOOTING INFORMATION FOR THE VEHICLE LOCKING SYSTEM.
A911643204413012017-02-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN EXPLAINS TO THE READER THAT A SOLUTION IS BEING DEVELOPED FOR AN ISSUE WITH THE MMI SCREEN GOING BLANK WHEN AN IPHONE IS CONNECTED, AND THAT THE VEHICLE VIN SHOULD BE SUBMITTED FOR NOTIFICATION WHEN THE SOLUTION IS READY.
A911642204402412017-02-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO TROUBLESHOOT A VARIETY OF ISSUES WITH THE AUDI SMARTPHONE INTERFACE.
A911664204250632017-02-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DETERMINE THE STATUS OF ACTIVATION KEYS (THAT AFFECT THE FUNCTION OF AUDI DRIVE SELECT, CRUISE CONTROL, NAVIGATION, BLUETOOTH, SMARTPHONE INTERFACE AND VOICE RECOGNITION), AND HOW TO UPDATE THEM .
A911663204402422017-02-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO TROUBLESHOOT A VARIETY OF ISSUES WITH THE AUDI SMARTPHONE INTERFACE.
A911662204413032017-02-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN EXPLAINS TO THE READER THAT A SOLUTION IS BEING DEVELOPED FOR AN ISSUE WITH THE MMI SCREEN GOING BLANK WHEN AN IPHONE IS CONNECTED, AND THAT THE VEHICLE VIN SHOULD BE SUBMITTED FOR NOTIFICATION WHEN THE SOLUTION IS READY.
A911664204250632017-02-17. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DETERMINE THE STATUS OF ACTIVATION KEYS (THAT AFFECT THE FUNCTION OF AUDI DRIVE SELECT, CRUISE CONTROL, NAVIGATION, BLUETOOTH, SMARTPHONE INTERFACE AND VOICE RECOGNITION), AND HOW TO UPDATE THEM .
A911663204402422017-02-16. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO TROUBLESHOOT A VARIETY OF ISSUES WITH THE AUDI SMARTPHONE INTERFACE.
A911662204413032017-02-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN EXPLAINS TO THE READER THAT A SOLUTION IS BEING DEVELOPED FOR AN ISSUE WITH THE MMI SCREEN GOING BLANK WHEN AN IPHONE IS CONNECTED, AND THAT THE VEHICLE VIN SHOULD BE SUBMITTED FOR NOTIFICATION WHEN THE SOLUTION IS READY.
A171677203811982017-02-14. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. THIS BULLETIN DETAILS INSTRUCTIONS ON HANDLING WHEN THE OIL MINIMUM MESSAGE APPEARS BUT THE OIL LEVEL IS ABOVE MINIMUM BUT NOT OVERFILLED.
A171675203811972016-10-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.