Mazda 3 2016 Manual page 195

Variable
Voltage
alternator
CAUTION
High-current electricity fl ows through the following parts, therefore do not touch them.
Variable voltage alternator
DC-DC converter
Capacitor
NOTE
A difference in the fuel economy may occur depending on how the vehicle's electrical
devices are used.
If the capacitor is to be disposed of, always consult an Authorized Mazda Dealer.
For details, go to the following URL.
http://www.mazda.com/csr/environment/recycling
DC-DC Converter
Capacitor
When Driving
i-ELOOP
4–67