Mazda 6 Service Manual: No.18 cooling system concerns-runs cold

No.17 cooling system concerns-overheating

No.19 exhaust smoke

Other materials:

Mazda 6 Service Manual: Engine Coolant Temperature Gauge (Without Multi-information Display)
Displays the engine coolant temperature. The white gauge indicates that the engine coolant temperature is low, and the red gauge indicates that the engine coolant temperature is high and overheating. CAUTION If the engine coolant temperature gauge indicator flashes, there is a possibility ...

Mazda 6 Service Manual: Manual Shift Mode
The manual shift mode gives you the feel of driving a manual transaxle vehicle by allowing you to operate the selector lever manually. This allows you to control engine rpm and torque to the drive wheels much like a manual transaxle when more control is desired. To change to manual shift mode ...