Q: Replacing O2 sensor 2000 Audi A4 v6

asked by on April 18, 2017

I got my check engine light checked and three codes popped up. All dealing with o2 sensor bank 2. Wondering what I need to fix and where it is located?

My car has 174000 miles.
My car has a manual transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Clutch doesn't work
The clutch master cylinder supplies pressure from your foot to the clutch slave cylinder. A fluid leak at the master or the slave cylinders would indicate the problem. I would recommend inspecting the fluid level and adjustment. A fluid bleeding...
Sunroof not closing all the way
Hi. Sometimes debris lands inside the track and can cause similar complications. If thats not the case, a certified mechanic from YourMechanic can inspect the sunroof system. It can be a switch problem or the sunroof module just needs to...
Dodge Neon SE 2003 problem is code P0440
The trouble code P0440 (https://www.yourmechanic.com/article/p0440-obd-ii-trouble-code-evaporative-emission-control-system-malfunction-by-jay-safford_2) means the Evaporative emission control system is malfunction. This malfunction may have been caused by a number of different things including, a loose or missing gas cap (https://www.yourmechanic.com/services/gas-cap-replacement), a vacuum leak (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-vacuum-leak), a faulty purge...
Slight overheat low coolant
I would suggest having the system pressure tested when the system is cold and do not forget to check the radiator pressure cap also for any leaks. Have the system pressure tested and it should not leak any pressure in...
weird engine noise
Hello. Though this can be caused by a transmission failure, most of the time it is either caused by a cracked flywheel or a failing timing chain (https://www.yourmechanic.com/services/timing-chain-replacement). I usually try to narrow down the location of the noise as...
P0171 & P0174
These two trouble codes are both related to the oxygen sensors located after the catalytic converter detecting that your vehicle is running lean. There could be a fuel pressure problem, vacuum leak, a vacuum hose left unplugged, an intake air...
Engine stopped running while driving and will not start again.
Hey there. As you know, this P0340 code (https://www.yourmechanic.com/article/p0340-obd-ii-trouble-code-camshaft-position-sensor-circuit-malfunction-by-jamahl-walker) indicates the camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) is either faulty or not connected properly. The camshaft position sensor monitors the speed of the camshaft providing the ECU with this information. The ECU...
what causes fluid to shoot out the top of the power steering reservoir
Hello. We will be happy to help you. This is a common problem with Ford's of that era. Well I wouldn't consider it a problem it's more so of a hassle than anything else. If you turn the steering wheel...
Hi I have a 2004 Santa Fe and I've had to replace the alternator on it and now it's the second time in three months we found out t
Without seeing for myself, I'd say it is more than likely fixable. Oil leaks are not uncommon as vehicles age. It can simply be a valve cover gasket - the top engine cover gasket. Only if it turns out to...

Related articles

The Best Used Cars to Buy If You’re an Architect
Obviously, Obviously, architects appreciate beauty and symmetry. This is not just the case when it comes to their building projects, but also in terms of the vehicles they choose. We have evaluated several used cars, and identified the Mercedes CLA,...
The Best Used Cars to Buy if You Live Close to the Ocean
If If you live close to the ocean, your vehicle is going to be far more vulnerable to rust than if you lived further inland. And the fact is, when it comes to resisting rust, not all vehicles are created...
5 Comfortable Sports Cars Your Parents Won't Complain About Riding In
The most comfortable sports cars combine high performance with a smooth ride. Options include the Alpina B6, Audi S8 Plus, and Mercedes-AMG S65.