Checking CO2 content in exhaust gas of auxiliary heater |
CO2 (carbon dioxide) content |
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| Sufficient fuel in tank (fuel gauge in dash panel insert not in red zone) |
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| Battery -A- (vehicle battery) fully charged |
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| Auxiliary heater fully installed and connected to vehicle electrical system |
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| Auxiliary heater switched off |
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| Checking CO2 content in exhaust gas of auxiliary heater → Chapter. |
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