Logic of naming sensors in VW-group is simple it contains "G" (german "Geber") + sensor number. The sensor number is unique. Here you can find fitting location, connectors and pins description, some information about sensors signals.

To our mind, sensors information is reference, so there is only simple search by sensor number.


Audi A8 4E (2002 -)
Audi A6 4F (2005- )
Audi Q7 4L (2007- )
Audi A4 8K (2008-)
Audi A3 8P (2003- )
Audi Q5 8R (2009- )

Audi A8 4E (2002 -). G18 Описание

Specifications of temperature sensor -G18


Measured value blocks 2 and 3


Display zone 1


Current coolant temperature transmitted by the temperature sensor -G18 in the auxiliary/additional heater in °C


Display zone 2


Coolant temperature in °C received by the data bus system

- The temperature is delivered either by the control unit in the dash panel insert or by the engine control unit.

- When the ignition is off no coolant temperature is received, and a substitute value, e.g. -40°C, is applied.

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