Bottle holders are on the inside of the doors.

CAUTION
Do not use the bottle holders for containers without caps. The contents may spill when the door is opened or closed.
Cup Holder
Storage CompartmentsMazda 6 Owners Manual: Front crossmember removal/installation
1. Remove the under cover.
2. Remove the splash shield.
3. Remove the front auto leveling sensor. (See FRONT AUTO LEVELING SENSOR
REMOVAL/INSTALLATION.)
4. Remove the transverse member. (See TRANSVERSE MEMBER
REMOVAL/INSTALLATION.)
5. Remove the steering gear and linkage, and pipe assembly i ...
Mazda 6 Owners Manual: Cooling system service warnings
COOLING SYSTEM SERVICE WARNINGS
Warning
Never remove the radiator cap or loosen the radiator drain plug
while the engine is running, or when the engine and radiator are hot.
Scalding coolant and steam may shoot out and cause serious injury. It may
also damage the engine and cooling sys ...