Question about 2001 Volkswagen Beetle

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Replacement of O2 sensor in front of catalytic coverter.

I have a 2001 Beetle 2.0. I am aware that the 1st O2 sensore is in front of the catylitic coverter. It is just off the manifold in the back of the top of the engine. My problem is how to get to it. I can see it but my hand can't get back there! What do I need to do to get the old one out?

Fustrated and confused

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  • Volkswagen Master
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Start your car and drive around till the vehicle reaches the normal operating temperature. Park on a level surface and set the parking brake. Chock the rear wheels.

Jack the front of the vehicle and support the front end with jack stands. After the vehicle's weight is being supported by the jack stands, let the jack support the center of the front end. This adds stability and another layer of safety.

Locate the sensor on the exhaust pipe. The sensor is mounted on top of the exhaust pipe, just forward of the catalytic converter. Wear gloves as the exhaust system will be hot.

Follow the sensor wiring aft to locate the junction box. Using the crescent wrench, remove the two nuts and remove the junction box cover. Pop the sensor's connector end out of the junction box and disconnect from the car's harness. The sensor harness is secured by clips. Remove the harness from the clips and remove the heat shield blanket that snaps in place over the harness. Take the 7/8-inch wrench and remove the sensor.

Place anti seize on the new sensor's threads. Install the new sensor and tighten securely. Reinstall the harness and connector in the reverse order of the above steps.

Hope this helps and save's you some money. Not that hard to do other then trying to break the old sensor loose. I use a hammer on the wrench with light taps to break it loose first then you should be able to remove the sensor by hand. Good luck

Posted on Apr 22, 2009

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