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Service bulletins for the 2015 Audi A6

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.

1115 on file from NHTSA, as of 2026-10-19.

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By component

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Bulletins, newest first
A901552 2039429-2017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The vehicle horn sounds abnormal or is inoperative. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. Contact the Audi Technical Assistance Center (TAC) before replacing any parts. No changes to production have been made, as no issue has been identified.
A461599 2034181-2017-10-21. Service bulletin. SERVICE BRAKES, HYDRAULIC. The customer may report hearing brake noise from front or rear brakes. The customer may describe these noises as a squeal, squeak, grinding, groaning, thumping, or creaking. Brake noise can be attributed to many causes. Brake discs or brake pads are close to or below their wear limit. Aftermarket pads or discs have been installed. There is debris (such as small stones, grit, road salt, or sand) between brake disc and brake pad. Discs are covered with rust. Rust can form when the vehicle has not been driven for a long period of time.
PDI - 2015 A6-S62017-10-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This document contains the Audi pre-delivery inspection checklist. All items must be completed prior to customer delivery by an Audi technician. Audi recommends using an Audi approved battery charger to prevent excessive battery discharge during inspection. It is advised to start ODIS with the engine running to enable all 5F Test Plans in GFF and also to ensure SVM sees all control units during the SVM check vehicle configuration. Refer to the Special functions tab of ODIS Diagnosis using GFF for the PDI function tests. For items marked with *, please refer to the PDI Technician Reference Document posted on ServiceNet for additional information. This document is in Spanish.
PDI - 2015 A6-S62017-10-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This document contains the Audi pre-delivery inspection checklist. All items must be completed prior to customer delivery by an Audi technician. Audi recommends using an Audi approved battery charger to prevent excessive battery discharge during inspection. It is advised to start ODIS with the engine running to enable all 5F Test Plans in GFF and also to ensure SVM sees all control units during the SVM check vehicle configuration. Refer to the Special functions tab of ODIS Diagnosis using GFF for the PDI function tests. For items marked with *, please refer to the PDI Technician Reference Document posted on ServiceNet for additional information.
PDI - 2015 A6-S62017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains the Audi delivery guidelines and checklist.
PDI - 2015 A6-S62017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains the Audi delivery guidelines and checklist. This document is in Spanish.
A171670 2040644-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). A metallic whistling or grinding sound is heard from the engine compartment when the vehicle is at idle speed. The sound usually occurs when the engine is warm. The MIL is sporadically on due to DTCs being stored in the ECM. A leak in the crankcase breather module can cause this condition.
A191665 2039018-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. A small amount of dry or crusted coolant is seen on the coolant pump housing. The coolant level warning is not on. A minor coolant leak is possible during the break-in phase of the coolant seal on the coolant pump. The dry coolant marks are normal.
Scheduled Maint2017-10-21. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER. Fuel Filter ? replace: Added A3 2.0L TDI
AWA16092017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This is a general communication notifying dealers that there is extended Warranty coverage available for the exhaust gas temperature sensor for certain models and model years. This document details the terms of the warranty extension.
A911704 2045106-2017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides instruction on how to properly replace a coaxial connection if it is damaged.
A911701 2044670-2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides instructions for a software update to correct an issue with dropped calls in RMC MMI systems.
A911700 2041430-2017-10-15. Service bulletin. BACK OVER PREVENTION: CAMERA SYSTEM. This technical service bulletin provides instructions for replacing the rear camera wiring harness.
A871780 2044717-2017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides instructions on correcting a high-pitched buzzing noise in the cabin when the fan speed is no higher than 2.
A201785 2043357-2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A201784 2043357-2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A171779 2040644-2017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
Email - Audi 3.02017-10-04. Service bulletin. EQUIPMENT. This is an email covering the 3.0L TDI terms of the settlement. It gives you links that cover FAQs avout the settlement.
Bulletin - Updat2017-10-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Update ECM software to improve diagnostic of NVLD system. Bulletin revised to update claiming instructions.
A191777 2046712-2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A171780 2040644-2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A011703 2033001-2017-10-04. Service bulletin. ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A011701 2033001-2017-10-04. Service bulletin. ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A191667 2039018-2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. A small amount of dry or crusted coolant is seen on the coolant pump housing. The coolant level warning is not on. A minor coolant leak is possible during the break-in phase of the coolant seal on the coolant pump. The dry coolant marks are normal.
A171669 2040644-2017-10-04. Service bulletin. ENGINE. A metallic whistling or grinding sound is heard from the engine compartment when th evehicle is at idle speed. The sound usually occurs when the engine is warm. The MIL is sporadically on due to DTCs being stored in the ECM. A leak in the crankcase breather module can cause this condition.

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