SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4 cylinder 2.0 litre 4V Common rail TDI engine (2nd generation) | Fuel preparation system Diesel injection | Lambda probe and pressure differential sender | Removing and installing Lambda probeG39 with Lambda probe heaterZ19

Removing and installing Lambda probeG39 with Lambda probe heaterZ19

Removing and installing Lambda probe -G39- with Lambda probe heater -Z19-

t	Remove the Lambda probe -G39- with heating for Lambda probe -Z19- → Anchor

t	Install the Lambda probe -G39- with Lambda probe heater -Z19- → Anchor

Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Wrench kit -3337-, see equivalent → Anchor

Removing

–	Remove engine cover panel -arrows-.

–	Disengage the connector -3- of the Lambda probe -G39- and move the electric wiring clear.

–	Screw out the Lambda probe -G39--1- using the wrench -3337/1-.

Note

-Items 2 and 4- can be disregarded.

Installing

Reassembly is carried out in the reverse order; note the following:

l	Tightening torque → Chapter „Lambda probes: Assembly overview“

Note

t	The screw thread on the new lambda probe is coated with a special paste; the paste must not get into the slots on the probe body.

t	In the case of a used Lambda probe grease only the thread with high-temperature paste. The paste must not get into the slots on the Lambda probe body. For high-temperature paste refer to → Parts catalogue.

t	When installing, the Lambda probe wiring must always be re-attached at the same locations to prevent it from coming into contact with the exhaust pipe.

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