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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Only bulletins with component: Engine are shown. Show all
| 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. |
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| 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. |
| 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. |
| A011656 2040491- | 2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. The technical service bulletin is in regards to the MIL being on due to DTC P1B1C00 (coolant pump mechanical malfunction) being stored in the ECM. "Coolant System: Fault Turn Off Engine" and the Coolant symbol appear in the information panel. Condition can be caused by a defective thermostat or the diagnostic software is incorrectly displaying the warning. |
| A191666 2043142- | 2017-10-04. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. The MIL is sporadically on. One or more of the following DTCs is stored in the engine control module (ECM, J623 (address word 01). They are DTC P261A00 (Coolant Pump ?B? Control Circuit/Open), DTC P261B00 (Coolant Pump ?B? Control Circuit Range/Performance), and DTC P261C00 (Coolant Pump ?B? Control Circuit Low). The continued coolant circulation pump sporadically fails. |
| A011652 2040491- | 2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. MIL on (DTC P1B1C); message in information panel: "Coolant System: Fault Turn Off Engine" The condition is caused either a defect with the thermostat (in model year 2012 and 2013 vehicles) or The diagnostic software is incorrectly displaying the warning. No technical issue exists. Solutions are an improved thermostat installed in production and the diagnostic software has been updated. |
| EMAIL - TDI UPAT | 2017-06-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. THIS EMAIL GIVES AN UPDATE ON THE CURRENT EMISSIONS ISSUES WITH REGARDS TO 2.0L AND 3.0L TDI VEHICLES. |
| EMAIL TDI UPDATE | 2017-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. THIS EMAIL GIVES AN UPDATE ON THE CURRENT EMISSIONS ISSUES WITH REGARDS TO 2.0L AND 3.0L TDI VEHICLES. |
| EMAIL UPDATE | 2017-03-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. THIS EMAIL GIVES AN UPDATE ON THE CONSUMER SETTLEMENT PROGRAM WITH REGARDS TO 2.0L AND 3.0L TDI VEHICLES. |
| 24CO | 2017-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ELECTRICAL SYSTEM:SOFTWARE. ON CERTAIN AUDI VEHICLES WITH A 3.0L TFSI ENGINE MANUFACTURED DURING A SPECIFIC PERIOD, THE DIAGNOSTIC THRESHOLDS FOR THE CATALYTIC CONVERTERS WERE PROGRAMMED TOO TIGHTLY IN THE ENGINE CONTROL UNIT. AS A RESULT, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY COME ON EVEN THOUGH THE CATALYTIC CONVERTERS ARE WORKING PROPERLY. IF THE MIL IS ON, A VEHICLE WILL NOT PASS AN EMISSIONS INSPECTION. |
| A24165420440032 | 2017-03-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316. |
| A20166920441821 | 2017-03-14. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN IS REPAIR AUTHORIZATION FOR ISSUES WITH FUELING THE VEHICLE. |
| 2017-03-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. THIS EMAIL GIVES AN UPDATE ON THE CURRENT EMISSIONS ISSUES WITH REGARDS TO 2.0L AND 3.0L TDI VEHICLES. | |
| A24165320440031 | 2017-03-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316. |
| A20166420438921 | 2017-03-02. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN INFORMS THE READER THAT THERE IS A PENDING SERVICE SOLUTION (PSS) FOR MIL ON WITH DTC P046100 IN VEHICLES WITH V6 ENGINES. |
| A17167220381196 | 2017-03-02. 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. |
| A15162820399952 | 2017-03-02. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO VERIFY A RATTLING NOISE HEARD AT COLD START AND TO REPLACE BOTH UPPER CHAIN TENSIONERS OF BANK 1 AND BANK 2 WITH AN OPTIMIZED PART. |
| A24165420440032 | 2017-02-23. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316. |
| A20166920441821 | 2017-02-23. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. THIS TECHNICAL SERVICE BULLETIN IS REPAIR AUTHORIZATION FOR ISSUES WITH FUELING THE VEHICLE. |
| A97165620424502 | 2017-02-22. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE. THIS TECHNICAL SERVICE BULLETIN PROVIDES INSTRUCTIONS FOR INSULATING THE BRACKET FOR THE STARTER MOTOR WIRING HARNESS WITH FABRIC TAPE TO REDUCE A NOISE. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.