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We cover the Mazda6 across three generations. Engines include 2.3- and 2.5-liter fours, 3.0- and 3.7-liter V6 units, the Mazdaspeed6 turbo, and from 2014 the 2.5-liter Skyactiv-G and the 2.5-liter turbo.



The 2021 Mazda 6 belongs to the third-generation Mazda6 (GJ/GL), built for model years 2014–2021. It is the last model year of this generation and includes the running changes made during production, which is why a manual for the exact year matters.
Check the model year on your VIN: on a 2021 vehicle the 10th character of the 17-digit VIN is “M”. Vehicles built for North America always carry the model year in that position; on some European or Australian vehicles it may be left unused, so in that case go by the registration papers or the build plate.
At about 5 years old, a 2021 vehicle is usually past its basic warranty. Typical jobs at this age are brakes, suspension parts, fluids, the 12V battery and diagnosing sensor faults with the factory wiring diagrams.
Same generation: 2014 Mazda 6, 2015 Mazda 6, 2016 Mazda 6, 2017 Mazda 6, 2018 Mazda 6, 2019 Mazda 6, 2020 Mazda 6.
All Mazda 6 model years: 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021
Engine
SKYACTIV-G 2.5T
SKYACTIV-D 2.2
SKYACTIV-G 2.5 (With Cylinder Deactivation)
SKYACTIV-G 2.5 (Without Cylinder Deactivation)
Transmission
FW6A-EL
GW6A-EL, GW6AX-EL
C66M-R
