volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Ignition System > < Variable Induction System|Locations
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Location: In front exhaust pipe

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Grease only the threads with G 052 112 A3; G 052 112 A3 must not get into the slots on the probe body

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Checking Oxygen sensor and Oxygen sensor control before catalytic converter

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Checking Heated Oxygen Sensor (HO2S) before catalytic converter

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4-pin connector
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Black for Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) Heater -Z19-

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Installed location, engine compartment overview

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Heat shield

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Vent hose

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Warm air intake
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From warm air collector on exhaust manifold

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Retaining ring

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Supply pipe/hose
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White arrow

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Secure with spring-type clips

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From fuel filter

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Return pipe
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Blue arrow

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Secure with spring-type clips

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Check securely seated

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To the fuel delivery unit in fuel tank

Ignition System > < Variable Induction System|Locations