Mazda 626 1997–2021 — technical service bulletin
Bulletin 07-001-21-3775 · NHTSA communication 10186701 · issued Jan 26, 2021
Technical service bulletin
communication type
Equipment
component
1997–2021
model years
60
vehicle entries
Official summary
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 pollen within the cooling unit. This condition is usually worse during high humidity conditions. â  Mazda Air Cooling Coil Coatingâ  is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years.
Vehicles covered
- 1998 Mazda 626
- 1999 Mazda 626
- 2000 Mazda 626
- 2001 Mazda 626
- 2002 Mazda 626
- 2003 Mazda 626
- 2016 Mazda CX-3
- 2017 Mazda CX-3
- 2018 Mazda CX-3
- 2019 Mazda CX-3
- 2020 Mazda CX-3
- 2021 Mazda CX-3
- 2020 Mazda CX-30
- 2021 Mazda CX-30
- 2013 Mazda CX-5
- 2014 Mazda CX-5
- 2015 Mazda CX-5
- 2016 Mazda CX-5
- 2017 Mazda CX-5
- 2018 Mazda CX-5
- 2019 Mazda CX-5
- 2020 Mazda CX-5
- 2021 Mazda CX-5
- 2007 Mazda CX-7
- 2008 Mazda CX-7
- 2009 Mazda CX-7
- 2010 Mazda CX-7
- 2011 Mazda CX-7
- 2012 Mazda CX-7
- 2007 Mazda CX-9
- 2008 Mazda CX-9
- 2009 Mazda CX-9
- 2010 Mazda CX-9
- 2011 Mazda CX-9
- 2012 Mazda CX-9
- 2013 Mazda CX-9
- 2014 Mazda CX-9
- 2015 Mazda CX-9
- 2016 Mazda CX-9
- 2017 Mazda CX-9
- 2018 Mazda CX-9
- 2019 Mazda CX-9
- 2020 Mazda CX-9
- 2021 Mazda CX-9
- 2011 Mazda MAZDA2
- 2012 Mazda MAZDA2
- 2013 Mazda MAZDA2
- 2014 Mazda MAZDA2
- 2004 Mazda MAZDA3
- 2005 Mazda MAZDA3
- 2006 Mazda MAZDA3
- 2007 Mazda MAZDA3
- 2008 Mazda MAZDA3
- 2009 Mazda MAZDA3
- 2010 Mazda MAZDA3
- 2011 Mazda MAZDA3
- 2012 Mazda MAZDA3
- 2013 Mazda MAZDA3
- 2014 Mazda MAZDA3
- 2015 Mazda MAZDA3
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.