SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4LV Injection and Ignition System | Self diagnosis, V.A.G Inspection Service | Final control diagnosis | Final control diagnosis: carrying out | Activate the exhaust recirculation valve N18 :

Indicate the engine revs signal: > < Activate activated charcoal filter solenoid valve 1 N80 :

Activate the exhaust recirculation valve N18:

Activate the exhaust recirculation valve -N18-:

–

Press →.

Reading on display:

The exhaust recirculation valve (engine compartment, to the left, on the cylinderhead) should click until you press the button → to activate the next actuator.

If the exhaust recirculation valve does not click:

Continue the test → Anchor.

Final control diagnosis                →

Exhaust recirculation valve -N18

Power unit
4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service
Final control diagnosis / nal_control_diagnosis_carrying_out/">Final control diagnosis: carrying out
Activate the exhaust recirculation valve N18 :

Indicate the engine revs signal: > < Activate activated charcoal filter solenoid valve 1 N80 :

SEAT Workshop Service and Repair Manuals

Leon Mk1

Power unit 4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service Final control diagnosis / nal_control_diagnosis_carrying_out/">Final control diagnosis: carrying out Activate the exhaust recirculation valve N18 :

Power unit 4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service Final control diagnosis / nal_control_diagnosis_carrying_out/">Final control diagnosis: carrying out Activate the exhaust recirculation valve N18 :

Power unit
4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service
Final control diagnosis / nal_control_diagnosis_carrying_out/">Final control diagnosis: carrying out
Activate the exhaust recirculation valve N18 :

Power unit
4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service
Final control diagnosis / nal_control_diagnosis_carrying_out/">Final control diagnosis: carrying out
Activate the exhaust recirculation valve N18 :