Engine Coolant Temperature Sensor

WARNING: This page is about a different variant/trim than selected.

Removing

-- Briefly open the coolant reservoir cap to reduce the residual pressure in the coolant system.

-- Remove the engine cover -arrows-.

Fig 1: Identifying Engine Cover

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- from the Engine Coolant Temperature (ECT) Sensor -G62-.

Fig 2: Engine Coolant Temperature Connector

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Lay a cloth below to catch escaping coolant.

Ignore -2-.

-- Remove the retaining clip and the engine coolant temperature sensor.

Installing

Installation is done is reverse order, observe the following:

NOTE:

Replace O-ring.

To prevent coolant loss, immediately insert new engine coolant temperature sensor in support.