Audi bulletin Circular 37P1
Audi filed this with NHTSA as a service bulletin dated Apr 9, 2024, received May 7, 2024, about the unknown or other. It names 4 model years (2016–2018). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationDue to a software error, affected vehicles may experience elevated tailpipe emissions when driven in Sport Mode. Additionally, under certain conditions, affected vehicles may also store non-erasable, On-Board Diagnostic fault code(s) that cannot be cleared following specific repairs. If this happens, the vehicle may not pass a state emissions inspection.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| Circular 37P1 | Service bulletin | Apr 9, 2024 | 10253355 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it 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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Audi Circular 37P1 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 Circular 37P1 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 Circular 37P1 cover?
The manufacturer filed it against 4 model years: 2018 Audi R8, 2017 Audi R8, 2016 Audi R8, 2017 Audi R8 Spyder. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.