SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4 cylinder Gasoline direct injection engine, 2.0 liter turbo 4V, mechanics | Exhaust system | Remove and install components of the exhaust system | Removing and installing Lambda probe G39 and Lambda probe heater Z19 before catalytic converter

Removing and installing Lambda probeG39 and Lambda probe heaterZ19 before catalytic converter

Removing and installing Lambda probe -G39- and Lambda probe heater -Z19- before catalytic converter

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

Special tools and workshop equipment required

t	Set of flat ring spanners for lambda probes -3337-

Removing

–	Remove engine cover → Chapter

–	Remove the connector -1-on the lambda probe -G39- and heating for the lambda probe -Z19-.

–	Remove the lambda probe-arrow- by unscrewing with a tool from the set of ring spanners for lambda probes -3337-.

Fitting

When fitting, note the following:

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	With used lambda probes, heat the bolt before coating with paste. This paste must not get into the slots on the hot bolt paste → Spare parts catalogue

t	When assembling, the lambda probe cable must be fixed in its original position to avoid contact with the exhaust pipe.

l	Tightening torque: 55 Nm.

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