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Notes on general repairs to vehicles with additional heaters
Notes on general repairs to vehicles with additional heaters
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◆ Before carrying out welding work on the vehicle, disconnect the positive and negative battery terminals.
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◆ If the coolant has been drained, bleed the additional heater after filling the cooling system (=>Page 82-48).
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◆ If parts of the fuel system have been removed or replaced, please ensure that all components for diverting fuel to the additional heater have been correctly installed.
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◆ Depending on the last operating condition and the coolant temperature in the additional heater, the current consumption of the additional heater at rest may amount to a maximum of 60 mA for a period of 5 hours after switching off. In this period of time, the coolant cooldown is calculated by the -J162 control module for the time after switching off. The -J162 additional heater control unit at-rest current consumption will be lower than 2 mA after a maximum of 5 hours have elapsed.
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◆ After carrying out repair work in the additional heater fuel pipe area, check the following:
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‒ that the fuel pipes are flush with the floor of the vehicle, and are routed so as to protect them from mechanical damage.
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‒ the fuel line to the additional heater must be protected from heat generation that could impair operation.
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‒ the fuel pipe must not touch hot vehicle components.
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