Antifreeze Temperature Sensors Thermo Top V Rectangular Connector

On TT-V heaters, the antifreeze temperature is controlled by two sensors installed on the heat exchanger.

The temperature sensor registers the temperature of the coolant in the heater exchanger as an electrical resistance. This signal is received by the control unit and processed there. The temperature sensor (G1) and the overheating sensor (G2) together with the wiring and connector form one unit. An overheating sensor protects
the heater against impermissibly high operating temperatures. It works at temperatures above 125°C and turns off the heater.

The sensor seals must be soaked in water or coolant before installation in the heat exchanger.

Sensor resistance at 20+-6°C is:

temperature sensor G1 (NTC closest to the connector, pins 2 and 6) from 1998 to 4050 Ohm

overheating sensor G2 (PTC farthest from the connector, pins 3 and 7) from 0 to 250 Ohm

In addition, check their short circuit to the case, pinching wires and deformation of plastic covers.

Compatible with Webasto : Thermo Top V
Spare parts group : Sensors
Vehicle : Aftemarket , VW Amarok , VW Passat B6 , VW T6
Spare parts application : Electric
Manufacturer : Webasto Heater
type : Liquid
Product type : Car spare parts
Fuel type : Petrol , Diesel