Audi bulletin TSB_2074703_2
What it saysThis bulletin provides information when there is a drive system fault: power electronics control unit, electric drive P0A1B-41448 (0051), 42297 (00CE)-P18F1. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Apr 10, 2025, received May 3, 2025, about the electrical system. It names 3 model years (2022–2024). A service bulletin 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 communicationThis bulletin provides information when there is a drive system fault: power electronics control unit, electric drive P0A1B-41448 (0051), 42297 (00CE)-P18F1.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2074703_2 | Service bulletin | Apr 10, 2025 | 11017626 |
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 themA 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 databaseOwners of the 3 model years this bulletin names have filed 65 complaints with NHTSA since 2015. 41 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.
Within the first 6 months of owning the car my 2024 Audi Q4 E-tron premium door handle lock - unlock would not work and the car would intermittently not start. The dealership service replaced the 12-volt battery which has corrected the door handle lock-unlock issue; however, it has not corrected the no start problem.
2024 Audi Q4 e-tron · Electrical System · filed with NHTSA Aug 19, 2026 · ODI 11757936
The trunk power liftgate is often falsely activated by the foot-activated sensor. Even when your feet are not moving, if they are anywhere near the sensor it can set it off. This causes the hatch to close on you when you're standing under it with no way to stop it. This happens suddenly with very little warning.
2022 Audi Q4 e-tron · Electrical System · filed with NHTSA Oct 18, 2024 · ODI 11620660
Repeated A/C Failure in Extreme Heat Component: Air conditioning/cabin cooling Mileage: Approximately 49,350 miles as of XXX The vehicle repeatedly loses all A/C cooling in cabin in extreme heat (100°+F), with cooling returning in cooler weather. On XXX, traveling to , the A/C failed near .
2023 Audi Q4 e-tron · Electrical System · filed with NHTSA Oct 12, 2026 · ODI 11770660
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 group340 other manufacturer communications filed against the Audi Q4 e-tron under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2068573_6 | Service bulletin | Sep 18, 2026 | This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor faul… |
| TSB_2082962_2 | Service bulletin | Sep 14, 2026 | This bulletin provides a combined software update; ID. S 5.6.3 for Audi Q4 V7T BL. |
| TSB_2083185_1 | Service bulletin | Sep 8, 2026 | This bulletin provides information when timer-based charging is faulty; charging target exceeded (Q4 e-tron). |
| TSB_2082961_2 | Service bulletin | Sep 8, 2026 | This bulletin provides information about the combined softare update ID. S 5.6.3 Audi Q4 - with V7G and without S7E. |
| TSB_2083187_1 | Service bulletin | Sep 2, 2026 | This bulletin provides informaiotn when the vehicle does not charge; HV charging connector lock faulty. DTC 00C6, P0D9400. |
| TSB_2079214_4 | Service bulletin | Sep 2, 2026 | This bulletin provides information regarding fault finding and repair information for electric tailgate. |
| TSB_2077780_4 | Service bulletin | Sep 2, 2026 | This bulletin provides information when the charging target cannot be adjusted in the MMI. |
| TSB_2074258_2 | Service bulletin | Sep 2, 2026 | This bulletin provides information when the yellow electrical system warning lamp is illuminated; DTC B1581F4, B168A00. |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Audi TSB_2074703_2 a recall?
No. A service bulletin 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 TSB_2074703_2 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 TSB_2074703_2 cover?
The manufacturer filed it against 3 model years: 2024 Audi Q4 e-tron, 2023 Audi Q4 e-tron, 2022 Audi Q4 e-tron. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.