SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4 cylinder Diesel engine (2.0 litre engine, Common Rail, Generation II) | 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	Lambda probe -G39- withheating for the lambda probe -Z19- Removing → Anchor

t	Lambda probe -G39- withheating for the lambda probe -Z19- Fitting → 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	Socket wrench 22 mm -T20202A-, see equivalent → Anchor

t	Torque wrench (5 - 50 Nm) -V.A.G 1331-, see equivalent → Anchor

Removing

–	Remove the engine cover upwards -arrows-.

–	Disconnect electrical connection -4- for lambda probe -G39-.

Note

Disregard items -1-, -2-, -3- and -5-.

–	Free the cable of the Lambda probe -G39- from its attachment.

–	Unscrew lambda probe -G39--3- with SW 22 socket wrench -T20202A-.

Note

Ignore positions -1- and -2-.

Installing

Installation is carried out in reverse sequence; 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 a used lambda probe, heat the bolt before coating only the thread with paste → Spare parts catalogue The paste must not get into the slots on the probe body.

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.

l	Tightening torque of the Lambda probe -G39- → Chapter

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