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Manufacturer communication · Other

Audi bulletin SM 40-2024

What it saysThis special notice is to inform dealers to return the parts listed if it meets the criteria provided. NHTSA’s full summary ↓

Audi filed this with NHTSA as a manufacturer communication dated Jul 8, 2024, received Aug 6, 2024, about the electrical system. It names 75 model years (2016–2025). A manufacturer communication is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

This special notice is to inform dealers to return the parts listed if it meets the criteria provided.

Kind Other Manufacturer date Jul 8, 2024 Received by NHTSA Aug 6, 2024 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
SM 40-2024OtherJul 8, 202411005988PDF

What the document itself lists

Part the bulletin names

Part numberDescriptionQtyFind it
8W1-907-064-EH——

Read by machine from the document NHTSA serves (1 page), read Sep 30, 2026. A part number is shown only where it matches Audi’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.

Model years it names

Source: as the manufacturer filed them

and 34 more on this site: 2023 Audi RS, 2022 Audi RS, 2021 Audi RS, 2019 Audi RS, 2018 Audi RS 5, 2025 Audi RS Q8, 2024 Audi RS Q8, 2023 Audi RS Q8, 2022 Audi RS Q8, 2021 Audi RS Q8, 2020 Audi RS Q8, 2025 Audi S4, 2024 Audi S4, 2023 Audi S4, 2022 Audi S4, 2021 Audi S4, 2020 Audi S4, 2019 Audi S4, 2018 Audi S4, 2016 Audi S4, 2025 Audi S5, 2024 Audi S5, 2023 Audi S5, 2022 Audi S5, 2021 Audi S5, 2020 Audi S5, 2019 Audi S5, 2018 Audi S5, 2017 Audi S5, 2023 Audi e-tron, 2022 Audi e-tron, 2021 Audi e-tron, 2020 Audi e-tron, 2019 Audi e-tron.

Also filed against model years this site has no page for: 2020 Audi RS 5.

A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.

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What owners reported

Source: NHTSA complaint database

Owners of the 74 model years this bulletin names have filed 1,717 complaints with NHTSA since 2015. 587 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.

On the 2017 Audi Q7, the 18 owners who gave an odometer reading for Electrical System reported it at a median of 64,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

Audi etron sportback lost power while driving on a busy roadway at 60mph. Car lost about 10-15 mph speed within seconds due to the vehicle weight. By the time the "drive system malfunction" and "electical system malfunction " warning lights came on I realized I could not accelerate, and and coasted to a stop on the shoulder over maybe 15…

2020 Audi e-tron · Electrical System · filed with NHTSA May 22, 2025 · ODI 11662595

Audi’s wireless charging pad in 2021–2024 A4/A5/Q5 models: •Overheats the phone •Triggers a thermal radio throttle •iPhone temporarily disables Bluetooth hardware •Audi MMI sees that and throws: “Bluetooth function is currently unavailable.” •Wireless CarPlay collapses because it needs Bluetooth + WiFi Direct •Audio goes dead along with…

2024 Audi A5 · Electrical System · filed with NHTSA Nov 25, 2025 · ODI 11701394

My 2019 Audi e-tron developed a sunroof leak. On , Audi Exchange in Highland Park, IL repaired it as a known issue partially covered by warranty; I paid $526.53. On it leaked heavily again from the same area, soaking the headliner, dashboard, carpet, foot wells and seats. The dealer said a different issue caused it; I paid $388.88 more.

2019 Audi e-tron · Electrical System · filed with NHTSA Oct 22, 2026 · ODI 11772949

In depth: 2020 Audi A4 electrical problems → · 2017 Audi Q7 electrical problems →

A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.

More bulletins about the electrical system

Source: same model, same component group

938 other manufacturer communications filed against these Audi models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Audi list.

NumberKindDatedNHTSA’s summary
TSB_2082223_5Service bulletinSep 30, 2026This bulletin provides information regarding software update KD2* 03.11.00/C (28.14.01).
TSB_2081477_7Service bulletinSep 30, 2026This bulletin provides an overview of the combined software updates for cluster 3; PPE/PPC.
TSB_2080988_4Service bulletinSep 30, 2026This bulletin provides information when the rear lid only opens/clolses slightly and then stops.
TSB_2080076_3Service bulletinSep 30, 2026This bulletin provides information when there is an engine warning lamp on; DTC P157000 is logged in the ECM.
TSB_2079976_3Service bulletinSep 30, 2026This bulletin provides information when there is occasionally audio output for entertainment when the vehicle is started.
TSB_2079975_3Service bulletinSep 30, 2026This bulletin provides informaiton when the sound output pauses automatically after starting the vehicle.
TSB_2079974_3Service bulletinSep 30, 2026This bulleitn provides informaiton when there is a translucent rectangle covering the center display.
TSB_2079972_4Service bulletinSep 30, 2026This bulletin provides information when the time does not autmotically update when daylight savings time begins or ends.

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Audi, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Audi SM 40-2024 a recall?

No. A manufacturer communication is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.

Is the SM 40-2024 repair free?

Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.

Which vehicles does SM 40-2024 cover?

The manufacturer filed it against 75 model years: 2025 Audi A4, 2024 Audi A4, 2023 Audi A4, 2022 Audi A4, 2021 Audi A4, 2020 Audi A4 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.