Bosch 15681 Premium Original Equipment Oxygen Sensor - Compatible with Select BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, X3

Replaced my upstream O2 sensor with a cheap off-brand, and it threw a new code, P2251 (vehicle-specific code). A replacement of the same part threw the same code. Getting this Bosch OEM sensor has not thrown any codes since, so I'm happy with this purchase.This sensor has also increased my fuel mileage compared to the off-brand by 1 MPG, and compared to my failing sensor it has increased it by 6 MPG.

On my Buick, I jacked the front of the engine up. I disconnected the front engine mounts. Then let the front move forward. Blocked it against the firewall. Easy to reach and change it. Remounted the mounts and cleared the codes. Been fine with NO ck engine lights! 👍

Fortunately, Dodge used the same Oxygen sensor for before and after the catalytic converter. No need to buy different oxygen sensors for upstream and downstream. These are factory replacements (Bosch) which were very inexpensive. They do come with a bit of anti-seize, which is good. I added more since the original parts were a nightmare to remove/break free. Did not want to go through that again in 100,000 miles.

I’ve only had this for a week now, it was super easy to install took me 2 minutes, the price was pretty high but it’s reasonable about what you get. Seems like my car runs better!

Perfect fit. Easy install. Code solved. Simple as that. Make sure you have the special tool for o2 sensor removal. This was for bank 2, sensor 1 replacement.

Product arrived on time and functioned perfectly for my 96 2.3L ranger upstream O2 sensor

These work great and are at a great price. Don't worry about Amazon stating they don't fit they are wrong. Bosch 15716 15717 15718 all are alike just different wire lengths. These work on the front side

Car runs smoother, and I gained 5% gas mpg increase. There were no codes, just at a 100k mileage. Oxygen sensors are not normally a maintenance item, but they do degrade over time.

After getting performance issues with my Golf and reduced mpg I swapped the MAF (Mass Air Flow) with a known working one and the performance was restored. The issue I had was when the engine was cold there would be hardly any power up until about 2.5k revs then all of a sudden a lot of power. The fuel filter and glow plugs had also been changed as these needed doing anyway. This Bosch replacement is the exact same model number removed from Golf, the only difference is this new one doesnt have the Audi / VW logo which is fine. Amazon was the cheapest place I could fine a genuine Bosch one, I called VW just out of interest and they charge £140 and they need your old back as I assume they refurbish them. So I feel this was a bargain at just under £80 from Amazon direct (not a 3rd party seller)

2005 Volvo s40 2.4i petrol struglle few times with start, didn't always run smooth or sometimes bit lacking power.After failed attempt on start Engine Check light came onPurchased OBD2 scaner and error code was P0190 Fuel Rail Pressure Sensor A Circuit.Quick search on google for people experience and it was possible that sensor could fail or its wireing or somthing with fuel pressure system: pump etc. But most people changed sensor and problem went away. Had a look around wires all seemed ok. I have purchased this one because it is exacly the same part number as original one on car even if amazon says it isn't compatible with my car. Sensor came next day it was identical to the BOSH one on car apart from missing small volvo logo. Replacement very easy. Undo plastic colorful cap on righr side looking aft from fuel rail. Put cloth underneath and using screwdriver press tyre like valve to release fuel pressure. In the left side looking aft gently unclip and slide timebelt upper cover for access. Undo electric connector. Put cloth underneeth sensor as some fuel will come out. Undo 1x T25 torx bolt holding sensor and wiggle out old sensor. Install new one. Connect electric connector and timebelt cover. Start the car. Car worked perfectly and problem went away. Time for cup of coffee.Did now nearly 2000 miles and problem didn't came back.

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.

You guys are a life savour ! I was on holiday 400 miles from Home when my EML light came on with error p0193 fuel pressure rail sensor ... got this delivered to a local Amazon locker by where I was staying , swapped the part in about 15 mins and the cars good as new ... Ford direct wanted £98!! Thankyou so muchCar - Focus st 2.5 ( 2007)

My Volvo S40 2.4i (2004) had a check engine warning light come up, at first it was intermittent but as the engine was running fine I left it alone. After a while the engine started stuttering & died, luckily I had an OBD2 Bluetooth adapter/reader that allowed me to connect to my android smart phone & scan for errors, which it did (PO129 Fuel Pressure Low Input)I Googled the fault & found that I needed a new Fuel Pressure Sensor, I shopped around & much to my surprise I found it here on Amazon & at a really good price. Combine that with Amazon's Prime Service I had it the next day, Chuffed!!If you look around (Google it!) I found some instructions on how to swap out the sensors in under 45 mins (I have a very basic knowledge of mechanics, I'm more of a techie!)Overall I'm very happy with the service provided & even happier to get the issue on my car sorted cheaply & easily!Keith.