Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
Downloaded from https://carmanualshub.com/ - automotive repair manuals website
ENGINE COOLANT REPLACEMENT
B3E011215001W04
Warning
• Remove and install all parts when the engine is cold, otherwise they can cause severe burns or
serious injury.
• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap.
Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while
the pressure escapes.
• When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and
remove it.
Caution
• Use engine coolant at a concentration that meets the environmental conditions in which the
vehicle is driven, otherwise engine damage could occur.
• The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not
use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant.
• Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will
reduce the coolant's effectiveness.
• Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off
quickly.
1. Remove the cooling system cap.
To Next Page
