How to replace the oxygen sensor in a Volkswagen Jetta?
Replacing the oxygen (O2S) sensor on your Volkswagen Jetta is a simple process. Wear long sleeves and working gloves if necessary to prevent skin burns, and then follow these steps to remove and install the new sensor in your Jetta. You can buy these sensors at most auto parts stores.
Where are the O2 sensors on a Volkswagen Golf?
Sensor 1- Sensor 1 would be the first O2 sensor in the line of sensors starting with the exhaust manifold and making its way back to the exhaust pipe. An Oxygen sensor that is between the catalytic converter and the engine is known as an “upstream” sensor. Oxygen sensors after the catalytic converter are “downstream sensors”.
What to do if your O2 sensor is bad?
Once you discover a failed O2 sensor on your VW, you need to replace it right away. Replacement with a genuine Volkswagen oxygen sensor is simple and can be done in your own garage. Here are the steps: Locate the O2 sensor by finding the spark plug looking part ported into your exhaust.
Why does the Check Engine light come on on a VW Jetta?
Oxygen sensors can change the way that your Jetta’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
Where is the post 02 sensor on a Jetta?
The brown harness is for the post (back) 02 sensor and the black is for the primary (front) 02 sensor. Pull the black harness out of the wall and unclip it. Once it is unclipped release the wires from the clips along the bottom.
https://www.youtube.com/watch?v=m69Kp1JeIAk
How much to replace temperature sensor MkIV VW / Audi, Jetta?
No matter if you drive the A4, Jetta, Passat, Beetle or GTI, this should be the correct replacement part, but always check with your local V-dub dealership. For some reason all the dealerships are charging a different amount for this part so expect to pay anywhere from $25-$40 for this fix.
Where is the upstream sensor on a Jetta?
The upstream sensor is located right before the catalytic converter and the downstream sensor right after the catalytic converter. Disconnect the black, negative battery cable. Raise the front of the vehicle using a floor jack and safely support it on two jack stands if necessary.
How long does it take to replace a temperature sensor?
Seeing how the repair will only take most people about ten minutes (thirty at the very longest) this could even be done before you go to work. Another benefit of waiting till the car is bone cold is it will leak very little coolant while swapping out the sensor.