TSB 07-004-25A — Mazda Service bulletin
07-004-25A is a service bulletin on file with NHTSA for 5 Mazda models, 2003–2023 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 07-004-25A names
| Vehicle | Model years |
|---|---|
| Mazda CX-5 | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| Mazda CX-7 | 2007, 2008, 2009, 2010, 2011, 2012 |
| Mazda CX-9 | 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| Mazda Mazda3 | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 |
| Mazda Mazda6 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 |
Every document filed under 07-004-25A
| Document ID | Filed | Type |
|---|---|---|
| 07-004-25a | December 10, 2025 | Service bulletin |
Questions buyers ask
What is TSB 07-004-25A?
07-004-25A is a service bulletin filed with NHTSA by Mazda, covering 5 Mazda models across the 2003–2023 model years. NHTSA's summary reads: A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and…
Which vehicles does 07-004-25A cover?
NHTSA's file names Mazda CX-5 (2013–2020); Mazda CX-7 (2007–2012); Mazda CX-9 (2007–2023); Mazda Mazda3 (2004–2018); Mazda Mazda6 (2003–2021). 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 07-004-25A a recall, and is the repair free?
No. 07-004-25A 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 07-004-25A?
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 07-004-25A, 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 07-004-25A. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.