TSB 2025303- — Audi Service bulletin
2025303- is a service bulletin on file with NHTSA for the Audi A4, 1995–2003 model years, filed and re-filed as 4 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Supersedes Technical Service Bulletin Group 19 number 13-35 dated March 25, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 2025303- names
Every document filed under 2025303-
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| A191562 2025303- | September 8, 2015 | Service bulletin |
| A191450 2025303- | June 20, 2014 | Service bulletin |
| A191341 2025303- | June 20, 2013 | Service bulletin |
| A191335 2025303- | March 25, 2013 | Service bulletin |
What 2025303- covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 2025303-?
2025303- is a service bulletin filed with NHTSA by Audi, covering the Audi A4 across the 1995–2003 model years. NHTSA's summary reads: Supersedes Technical Service Bulletin Group 19 number 13-35 dated March 25, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY…
Which vehicles does 2025303- cover?
NHTSA's file names Audi A4 (1995–2003). 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 2025303- a recall, and is the repair free?
No. 2025303- 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 2025303-?
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 2025303-, 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 2025303-. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.