
Unscrew screw "1" and remove spring "2". Using round-nose pliers, remove temperature sensor "G18" "3" and overheating sensor "G189" "4". Remove the wiring harness and disconnect the electrical connector.
Instructions: When assembling, install spring "2" in the correct position. The sensors can only be replaced as a set (both at once).
Integration of the Thermo Top V additional heater into the coolant circulation circuit
CAUTION: Avoid scalding from hot coolant. To ensure normal operation of the heater, there must be no air in the coolant circulation circuit.

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