Replaces
Part Details
TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for improved strength and durability, and plasma-sprayed to improve sensitivity and prolong the service life of the sensors. Oxygen sensors wear out over time and should be replaced every 60,000 miles to prevent poor engine performance. TRQ recommends replacing the oxygen sensors in sets to optimize fuel economy and reduce overall emissions. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.
Product Features
What is Upstream vs. Downstream?
Install Tip: You may be required to reset the vehicle computer after installation of this part.
Quality Tested - built to a strict level of product standards.
Item Condition:
New
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
Created on:
Tools used
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the downstream O2 sensor on this 2004 Volkswagen Jetta with the 1.8 turbo engine, and it's the same part and process on these Jettas from '99 to 2005. The items you'll need for this are a new downstream O2 sensor from 1AAuto.com, 10 mm socket and ratchet, O2 sensor tool, flat blade screwdriver, and jack and jack stands.
Your downstream O2 sensor is located right here. You want to start off by just removing this insulation sleeve from the O2 sensor wire, and it just unbuttons. Now, pull the O2 sensor harness from this bracket and then remove these two 10 mm nuts. We'll fast forward as Don does that. Pull the box down and then pull out the harness for the downstream O2 sensor. Then just push on the tab on the harness and then pull it free. This is a short O2 sensor tool, good for tight spaces like this. You're going to slide it onto the wire and up onto the O2 sensor. Then, using a 3/8 inch ratchet, just insert it into that square hole. Then you just use the ratchet as you normally would to loosen it up. You just want to keep using it to loosen it up. Then once you feel it's loose enough for you to remove by hand, you can just twist it out the rest of the way by hand.
On the left is the old downstream O2 sensor. On the right is the new one from 1A Auto. You can see they're identical and they're going to fit exactly the same. Take your new O2 sensor and just twist it into place. We'll fast forward as Don twists that into place and then tightens it up with that O2 sensor tool. Now rebutton this insulation sleeve around your O2 sensor wires. We'll fast forward as Don finishes that up. Now clip your new O2 sensor wire into that bracket, and if it fell down, just reclip it right up here. Reconnect your downstream O2 sensor harness and push it into place. Make sure the wires are coming out through the openings on the sides and then push this box back up into place. We'll fast forward as Don replaces those two 10 mm nuts and tightens them up. When you're done with that, you're all set.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
