TSB TSB-2078916 — Audi Service bulletin
TSB-2078916 is a service bulletin on file with NHTSA for 2 Audi models, 2023–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years TSB-2078916 names
Every document filed under TSB-2078916
| Document ID | Filed | Type |
|---|---|---|
| TSB_2078916_3 | June 4, 2026 | Service bulletin |
What TSB-2078916 covers
Fuel system — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB TSB-2078916?
TSB-2078916 is a service bulletin filed with NHTSA by Audi, covering 2 Audi models across the 2023–2026 model years. NHTSA's summary reads: This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM.
Which vehicles does TSB-2078916 cover?
NHTSA's file names Audi A4 (2023); Audi Q7 (2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB TSB-2078916 a recall, and is the repair free?
No. TSB-2078916 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of TSB-2078916?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under TSB-2078916, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under TSB-2078916. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.