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Service bulletins for the 2011 Audi S4

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.

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

About P1724 on the 2011 Audi S4: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P1724 are shown. Show all

Bulletins, newest first
35 13 11 20273632022-05-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Drivability concerns or P1724 fault stored S-Tronic Transmission.
A351311 2027363-2017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 35 number 11-02 dated November 8, 2011. Harsh downshifting multiple gears 7-5, 4-3, 2-1. This may happen during just one of these shifts. A bump felt after coming to a stop (2-1 down shift). Fluctuating engine speed after 5-4 shift with accelerator at 80-100% accelerator pedal position (kick-down). The driver information system displays the message "Gearbox complaint! Journey can be continued." After a key cycle the complaint is fixed. The vehicle was parked in gear lever position N and the ignition switched off. DTC P1724 (signal for immobilizer, short circuit to ground) is logged in the transmission control module, J217 (address word 02). Incorrect transmission software.
A351416 2027363-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). Supersedes Technical Service Bulletin Group 35 number 13-11 dated June 11, 2013. One or multiple transmission-related concerns may be present. Harsh downshifting of multiple gears: 7-5, 4-3, 2-1. This may happen during just one of these shifts. A bump is felt after vehicle comes to a stop (2-1 downshift). Fluctuating engine speed after 5-4 shift with accelerator at 80-100% accelerator pedal position (kick-down). The driver information system displays the message "Gearbox complaint! Journey can be continued." After a key cycle the complaint is fixed. The vehicle was parked in gear lever position N and the ignition switched off. DTC P1724 (signal for immobilizer, short circuit to ground) is logged in the transmission control module, J217 (address word 02). Incorrect transmission software.

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