Heated Oxygen Sensor (HO2S) 3 -G285- (before catalytic converter, left front), removing and installing: Removing

NOTE:

• All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.

• Activate vehicle lifting mode → 43 - Self Leveling Suspension .
• Remove left front wheel.

NOTE:

• Secure the brake disc with wheel bolts.

• Remove front part of left front wheelhouse liner → 66 - EXTERIOR EQUIPMENT .

Fig 1: Air Duct Hoses

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Pull off both air duct hoses - arrows  - at bottom of left air filter housing by pressing release buttons.

Fig 2: Mass Air Flow (MAF) Sensor 2 G246 Electrical Connector, Air Duct Hose, Intake Manifold Air Duct Hose & Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Separate electrical connector - 3  - for Mass Air Flow (MAF) sensor 2 -G246-.
• Disconnect hose - 2  - from air duct hose.
• Disconnect air duct hose - 1  - at intake manifold.
• Remove bolts - arrows  -.

• Remove upper part of left air filter housing.

Fig 3: Air Duct & Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Remove air duct - 1  -.
• Remove bolts - arrows  -.
• Remove lower part of left air filter housing.

Fig 4: Oxygen Sensors Electrical Harness Connectors

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Separate electrical connector - 1  - for Heated Oxygen Sensor (HO2S) 3 -G285-.

NOTE:

• Disregard the other items in the illustration.

• Expose electrical wiring to oxygen sensor.

Fig 5: Heated Oxygen Sensor (HO2S) 3 -G285- & Heated Oxygen Sensor (HO2S) 4 -G286-

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Remove Heated Oxygen Sensor (HO2S) 3 -G285- - arrow 1  - using ring spanner set 3337.