SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4 cylinder Petrol direct injection engine, Mechanics | Mixture preparation system, electronic inj.,Gas | Lambda probes: removal and fitting | Engine code BLR and BVY. Removing and installing Lambda probe after catalytic converterG130 and Lambda probe 2 after catalytic c

Engine code BLR and BVY. Removing and installing Lambda probe after catalytic converterG130 and Lambda probe 2 after catalytic converterG131

Engine code BLR and BVY. Removing and installing Lambda probe after catalytic converter -G130- and Lambda probe 2 after catalytic converter -G131-

t	Removing → Anchor

t	Installing → Anchor

Special tools and workshop equipment required

t	Special wrench -U-40080-

Removing

–	Remove right vehicle floor cover -arrows-.

Note

Before disconnecting the lambda probe connectors, mark the matching pairs, to avoid confusion when reassembling.

–	Remove the connector from the corresponding lambda probe.

Connectors for lambda probes after catalytic converter

2 -	Grey connector for Lambda probe 3 after catalytic converter -G287- with Heater for lambda probe 3, after catalytic converter -Z64-.

3 -	Brown connector for Lambda probe after catalytic converter -G130-withHeater for lambda probe 1, after catalytic converter -Z29-

4 -	Black connector for Lambda probe 2 after catalytic converter -G131- and Lambda probe 2 heater after catalytic converter -Z30-

–	Unscrew the corresponding lambda probe using the spanner -U-40080-.

Lambda probes after the catalytic converter

1 -	For Lambda probe after catalytic converter -G130- with Heater for lambda probe 1, after catalytic converter -Z29-.

2 -	Lambda probe 2 after catalytic converter -G131- with Lambda probe 2 heater after catalytic converter -Z30-.

Installing

Continue the installation in the reverse order of removal sequence, observing 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	If a lambda probe is reused, apply paste to the bolts when warm; the paste must not get into the slots on the probe body. Locking fluid for hot working bolts → ETKA (Electronic parts catalogue)

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

t	Tightening torque: 55 Nm.

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