| Notes on general repairs on vehicles with auxiliary heaters |
Note | If the ECON button (depending on vehicle equipment) is pressed, the auxiliary heater will not operate as a supplementary heater. |
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| Read self-diagnosis of auxiliary heater using vehicle diagnosis, testing and information system -VAS 5051B- or later model. |
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| If parts of the fuel system were removed or renewed, ensure that all components for fuel delivery to the auxiliary heater are properly installed. |
| Following repair work in the vicinity of the auxiliary heater fuel line, check: |
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| That the fuel lines are routed flush with the vehicle underbody and are protected against mechanical damage. |
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| That the auxiliary heater fuel line is protected from heating which might disturb operation. |
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| That the fuel line does not come in contact with components which heat up. |
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