I have a doubt which one has if the 17011 or the 17025 or if they are the same sensor and only the code number changes. Which of the two is compatibl

17025 is a LSU 4.9 sensor 0-5v wideband reading

Is it normal for these to come "used" looking? The sensor end was very sooty and had obviously been run in a very rich exhaust?

These say on this page, but all the ones I've seen look used because they are each tested and "burned in", meaning they're required to perform under normal operating temperatures for some significant period of time without flaw or failure of any kind. I used to work in a place that made microwave radio equipment and we had to burn in each one, like 24 at a time, overnight, monitored by computer and tested at it's coldest range too. The data was monitored continuously and if any parameter drifted, then it was torn apart and adjusted and sent back through the burn-in test again, repeat. It seems like there's always one that can't be fixed. Those were recycled. But anyway, an oxygen sensor is required to work in some extreme temperatures. Heat can change things if even the slightest thing is vulnerable or flawed in any way. So, in my opinion, reading comprehension, plus experience, I'd be happy if I got one that looks burned in. If these other comments are correct, and they get shiny new looking sensors, that means YOU are their QC department. All the pictures of every sensor from every vendor looks browned. That said, you said it looks "sooty" and carbon comes off on your hands? That could mean that it had been installed in a rich running car, true. However, it may be that they didn't clean it after burn-in during QC. However, it better not be shiny as a brand new penny, because that means you're their QC department. I have had that happen. They kept asking for more pictures. I felt like I should be on the payroll, but in China, ..? Anyway, It's going to be a judgement call. I'm going to say that these should be tested in sooty conditions because that could happen on a cold day in any car. But it's pretty obvious that nobody cleaned it off. The question is why they didn't. If you were sneaking a bad part in a box, you'd think you'd clean it off, right? If I were you, I'd go with my gut feeling about it. If it's one of the more accessible ones, why not try it? It's not like you'll make it more sooty. One reviewer said "buy 2 so if one is bad, you can simply grab another." It does seem to me that the hardest part is getting everything ready to replace a part and clean up after. So maybe that is the best advice. Buy another 1 or 2 so that if that one is bad you need only try another while you're under there. Maybe this is why OEM parts are so expensive. They'd better work or there's hell to pay. I never thought of it in these terms. But a $20 one? Get 2. These aren't $20 so I suppose people return the extraneous ones, if they're good or bad. Either way, they're looking for a refund. You know? The more I think of this, the more complex it gets. Since you're going to return it anyway, try it but wait until you've got another, just in case. Sorry this was long. It's puzzling. Not as clear cut as the other answers. I don't think they've seen many of these. Even online, they're obviously burned. It's the soot that makes it complex.

Is this tha same as aem 30-2004 wideband?

Sure is. I buy these as replacements for the AEM

How many wires does this sensor have please? I need to attach it to an Air-fuel Gauge having 3 wires

That will not work no matter how many wires it has. Afr gauges are meant to be driven by a wideband controller. The sensor is the input to the wideband controller. The sensor isnt capable of directly controlling the gauge.

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P**M

100% genuine Bosch sensor, made in Germany, at a great price.

Extremely pleased with this purchase for my 2002 VW Passat 1.8T. It is almost one fifth of the price from my local garage - but is exactly the same product! I was a bit dubious at first, but I searched on the Bosch website for my vehicle model number - and up came this part number. So I was confident that it was the correct part, but thought maybe it was manufactured elsewhere, so perhaps not so good quality? But I was wrong! This is a 100% genuine full-spec Bosch part manufactured in Germany. See the pictures of the packaging I have uploaded. The sensor comes complete with a full installation kit and has the proper connector already fitted. Some other sensors don't include this and you have to fit the connector yourself. It is now installed in my car, and it works perfectly. I wasn't sure if my sensor needed replacing but after replacing half a dozen other components in the vacuum system and still having the MIL light coming on, I thought it worth a try, especially at this amazing price. A couple of tips if you are thinking of buying one. Firstly, do NOT remove the protective cap from the sensor until you intend to install it. It is there to keep the special lubricant in place so you can remove it in the future. Secondly, you must remove the old sensor whilst the exhaust is hot otherwise you can't get it out. Be very careful, protect your arms and hands from burns from the exhaust and engine block. Thirdly you must use a special 22mm oxygen sensor socket spanner, they are about £10 - but its impossible to remove without one. It appears to be a recommendation to replace this (upstream) sensor every 100K miles. My car has only done about 65K but the sensor had been contaminated with a silicon sealer used to seal the rocker gasket. Oxygen sensors do NOT like silicon - mine worked but was slow response, reduced the engine power output and caused lumpy idling. Much better now.

18.02.2017

A**R

good

3.10.2022

G**Y

Good quality part

Perfect example why you should choose the proper OEM part. tried a cheaper make and it caused all sorts of problems. replaced with this one and perfect driving is back again.

17.02.2015

H**K

Good

All parts good

10.01.2020

A**U

Four Stars

6.04.2015

A**R

Pretty poor all round

Failed after less than 500 miles, sadly 2 months after purchase and Amazon won't touch after a month. Last one lasted 8 years. Pretty poor all round, states a 2 year warranty but your left high an dry by Amazon, as usual!

12.07.2016

R**S

Original equipment

Original OEM MAF. Works as expected.

28.04.2018

ASIN	B009J3EXGQ
Best Sellers Rank	121,959 in Automotive ( See Top 100 in Automotive ) 534 in Car Oxygen Sensors
Brand	Bosch
Customer Reviews	4.4 out of 5 stars 3,679 Reviews
Global Trade Identification Number	00028851170253
Included Components	Replacement Parts - Underhood;Engine Management;automotive-ambient-air-temperature-sensors
Item Dimensions	14.8 x 10 x 5.6 centimetres
Item Type Name	Premium Wideband Air/Fuel Oxygen Sensor (1-Pack)
Item Weight	0.39 Pounds
Item dimensions L x W x H	14.8 x 10 x 5.6 centimetres
Item height	2.2 inches
Item weight	0.39 Pounds
Manufacturer	Bosch
Material	Metal
Measurement Accuracy	HIGH
Measurement accuracy	HIGH
Measuring Range	10:1 to 20:1 air/fuel ratio
Model Number	17025
Mounting Type	Flange Mount
Output Type	Physical
Product Warranty	No
Specific Uses For Product	Oxygen Sensor
Style	Oxygen Sensor
Style Name	Oxygen Sensor
UPC	028851170253
Upper Temperature Rating	850 Degrees Fahrenheit

Bosch 17025 Oxygen Sensor

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