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Service bulletins for the 2014 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.

1384 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Cooling system are shown. Show all

Bulletins, newest first
DC_Closure 19N82024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. SERV_ACT - After-Run Coolant Pump - Closure Notice
Edition922023-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Idenifying and mixing factory fill engine coolants
24 14 50 20382122022-05-02. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Possible incorrect function on the sensor elements of the air mass meter.
A1922272025303122022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A9020652032113_42020-09-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This information bulletin contains a background on the outside air temperature reading.
Circular - 19N82019-05-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. After-Run Coolant Pump
A871782 2044717-2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. This bulletin provides instructions on correcting a high-pitched buzzing noise in the cabin when the fan speed is no higher than 2.
A191785 2047114-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin contains repair information for a malfunctioning V50 coolant recirculation pump that prevents the passenger side from heating properly with DTC B10D004 or B11D501.
A191789 2046712-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A191449 2036852-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. Cooling fans stay on after engine is turned off. The cooling fans may operate for up to 10 minutes after the engine is turned off. This function is mapped to specific driving patterns and vehicle operating modes (for example, DPF regeneration). This is normal operation, and no parts should be replaced.
A191557 2040043-2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Customer states that engine overheats. No MIL. No related DTCs are stored. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. In an effort to gain information on the overheat condition for the vehicles listed above, we are asking that you contact the Audi Technical Assistance Center (TAC) before replacing any parts. This will assist us in diagnosing any potential issues with the condition noted above. No changes to production have been made, as no issue has been identified.
A191558 2036852-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. Cooling fans stay on after engine is turned off. The cooling fans may operate for up to 10 minutes after the engine is turned off. This function is mapped to specific driving patterns and vehicle operating modes (for example, DPF regeneration). This is normal operation, and no parts should be replaced.
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.
A011668204049142017-02-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THIS TECHNICAL SERVICE BULLETIN PROVIDES TROUBLESHOOTING INSTRUCTIONS TO RESOLVE A COOLANT WARNING AND STORED DTC.
A011668204049142017-02-10. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THIS TECHNICAL SERVICE BULLETIN PROVIDES TROUBLESHOOTING INSTRUCTIONS TO RESOLVE A COOLANT WARNING AND STORED DTC.
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.