Mazda 6 Service Manual: Service cautions

Mazda 6 Service Manual / Heater and air conditioner systems / Service cautions

HANDLING INSUFFICIENT REFRIGERANT LEVEL

If an insufficient refrigerant level is detected at troubleshooting, do not charge (add) the refrigerant. Because an accurate amount of refrigerant cannot be determined from the pressure indicated on the manifold gauge, never charge the refrigerant. If there is too much or too little refrigerant from the refilling, there may be secondary problems such as damage to the refrigerant cycle parts, or a decrease of cooling performance. Therefore, if it is determined that the refrigerant level is insufficient, completely remove refrigerant from the refrigerant cycle and refill with refrigerant to the specified amount.

HANDLING COMPRESSOR OIL

Use only ATMOS GU10 compressor oil for this vehicle. Using a PAG oil other than ATMOS GU10 compressor oil can damage the A/C compressor.
Do not spill ATMOS GU10 compressor oil on the vehicle. A drop of compressor oil on the vehicle surface can eat away at the paint. If oil gets on the vehicle, wipe it off immediately.
ATMOS GU10 compressor oil (PAG oil) has a higher moisture absorption efficiency than the previously used mineral oil. If moisture mixes with the compressor oil, the refrigerant system could be damaged. Therefore, install caps immediately after using the compressor oil or removing refrigerant system parts to prevent moisture absorption.

Service warnings

HANDLING REFRIGERANT Avoid breathing air conditioning refrigerant or lubricant vapor. Exposure may irritate eyes, nose and throat. Also, due to environmental concerns, we urge use of recover ...

Refrigerant system service procedures

GAS CHARGING SET INSTALLATION 1. Fully close the valves of the SST (49 C061 001). 2. Connect the SSTs (49 C061 002, 49 C061 003) to the high- and low-pressure side joints of the SST (49 C061 001). ...

Other materials:

Mazda 6 Service Manual: Overheating
If the high engine coolant temperature warning light turns on, the vehicle loses power, or you hear a loud knocking or pinging noise, the engine is probably too hot. WARNING Pull over to a safe location, then switch the ignition off and make sure the fan is not running before attempting t ...

Mazda 6 Service Manual: Heating
1. Set the mode selector dial to the position. 2. Set the air intake selector to the outside air position (indicator light turns off). 3. Set the temperature control dial to the hot position. 4. Set the fan control dial to the desired speed. 5. If dehumidified heating is desired, turn on the ...