BOSCH 17351 Premium Original Equipment Oxygen Sensor - Single

Bought this to replace one of the O2 sensors on my 02 1.8t Passat and it works flawlessly. Plugged in fine, installed just like it should, and has worked great for over 20k miles so far. The little zip ties that come with it are a nice touch, but I didn't use them. Would definitely buy again!

It fits perfectly, installs easily, and has highest quality. I do wonder why this sensor costs roughly 2x more than similar part for Jetta IV. I suppose this is due to the quite long cable, and various clips and cable ties, and so on. The other choice is a universal wide-band sensor; if you value your time and reliability this part is the better choice. NOTE: any Bosch OEM sensor comes with high temperature anti-seize already on the threads, so you need not worry about buying or adding anti-seize.

This fit on our 2002 VW Golf 2.0 non-turbo as noted on amazon's fitment guide. This is the upstream heated O2. The wire was a bit long but that was noted in the instructions so it could fit more vehicles and it came with all of the plastic clips and ties needed to install it and some extras. You will need to jack up the car to install this as it plugs in under the car near where the midpipe attaches to the cat. It solved the check engine light at first as the scan said it was the upstream heated O2 but now we have a p0420 (catalyst below threshold). Onto the next fix.

Much cheaper than the OEM part. Fixed my O2 sensor bank code on my 2003 VW golf. Easy to install. Just an FYI to get the correct kind of O2 sensor tool for the front, the shroud over the exhaust means you can only use socket type tools. The cord was extra long but I just zip tied up and haven't worried about it.

Worked good in my 2004 vw beetle. Had a cracked sensor that made it idle rough. This fixed it right up. Even had never cease on the threads. Plug and play.

My 2003 Golf 2.0l with the AVH engine was pinging. All the other sensors were good and the spark plugs were new, so I suspected that the O2 was getting sluggish and I ordered this sensor. It comes with some extra installation pieces and I didn’t use most of them since there wasn’t anywhere to put them on my car. I just used the factory clips. The sensor’s cord is about 8” longer than it needs to be but the instructions just have you double the wire back on itself and zip tie in place with an included zip tie... pretty easy. I suggest the use of a deep-socket O2 sensor socket to reach all the way into the heat shield. Car seems to run with more power and doesn’t ping nearly at all now. can’t complain for an engine with almost 200k miles on it.

Perfect fit OEM parts for my 2004 A4 Quattro 1.8t. the wires are a little longer but just zip tie it together and it's fine. Car has gone through it's PID tests and my HO2s code doesn't come up anymore.

This is the factory replacement sensor to fit 2006 Audi A8l 4.2L. The sensor is for Bank 1, Sensor 1. It is Extremely Difficult to get to & replace! I rated Milage 1 Star. This is the second sensor I replaced in about a 13 month period. I had only put about 150 miles on the car when the last 1 went out. I'm gonna see if this 1 last longer than the first replacement. It's however a Good value for the money. Saved about $90 on part from buying from local auto parts store. The Exact same Brand & part number.

Seemed to have resolved a problem with a problem in my car. Bosch is a well known name in the automotive field. The fit was perfect!

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.

Bei meinem Auto war schon längere Zeit die Lambdasonde defekt und hatte immer keine Zeit die dann mal zu wechseln, weil ich dachte, das Auto ist schon recht alt, das wird bestimmt ne harte Nuß die auszubauen. Aber Pustekuchen, mit dem Lambdasonden Werkzeug (auch hier gekauft) war der Wechsel innerhalb von ca 30min erledigt, Das Gewinde der Sonde war nicht fest gerostet und so war es ein Kinderspiel die zu wechseln. Ich fahre nun schon über 1000km und hatte keine Fehlermeldung von von der Sonde.

Die Bestellung und die Lieferung haben super geklappt. Mit Expresslieferung in dieser Situation hat wirklich mit dem angekündigtem Datum geklappt und ich konnte es gleich im Golf einbauen und es funktionirt. Danke an das Team.

Their a little more expensive, but I like reliability. I don't like changing the same part all the time cause of a cheap one. Besides the old one was a pain to get at, and get off!