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BMW E91 Oxygen Sensor - O2 Sensors

BMW E91 Oxygen Sensor - O2 Sensors Every new BMW, and all BMW cars made from 1980 on, have an oxygen sensor, often called an "O2 sensor". The oxygen sensor is part of your BMW's emissions control system and feeds data to BMW engine management computer. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The goal of the oxygen sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to by simply changing your oxygen sensor today. We carry Bosch oxygen sensors, and in some cases Genuine BMW oxygen sensors or OEM oxygen sensors.
You're currently viewing parts for your (E91) 3-Series Touring 2006-2013. Reset your chassis
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O2 Sensor Bung and Plug Made in the USA O2 Sensor Bung and plug. This weld-in bung allows an O2 sensor to be screwed into your exhaust system. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing. A threaded plug is included to cap off when not in use. Bung and cap/plug are both 100% stainless steel. The bung and plug are also available separately (in case you don't need both). Simply choose your option below.
    TMS Oxygen Sensor Bung Specs:
  1. Material 304 stainless steel
  2. 1.00" / 25.4mm OD
  3. 0.50" / 12.7mm Tall
  4. Thread size and pitch M18x1.5
    TMS O2 Sensor Plug & Crush Ring Specs
  1. Material 304 stainless steel
  2. 10mm female hex for install and removal
  3. Thread size and pitch M18x1.5
  4. Copper Crush Ring for leak free installation
   Install Tips
  • Locate bung as close to engine a possible, without exceeding the maximum operating temperature for the O2 sensor. The suggested location is just down-stream of the merge-collector on each bank of cylinders.
  • Sensors located after upstream exhaust system leaks or too close to exhaust outlets are susceptible to poor readings or influence of ambient air
  • O2 Sensors exposed to exhaust gasses with too high amount of un-burnt fuel can lead to misleading readings. A possible lean reading.
  • Locate sensor/bung 90° to exhaust gas stream.
  • Locate sensor/bung in tube with a minimum of 10° up angel to prevent liquid build up in sensor element.
  • Use stainless steel welding wire or rod when installing bung.
  • Do not have bung plug or a oxygen sensor installed when welding bung in place.
  • Welding can distort the bung so it is recommended you chase/tap the threads of the bung after welding.
  • When installing O2 sensor or plug, use an O2 sensor compatible high temperature resistant grease on the threads.
  • Use tightening torque suggested by O2 senor manufacturer.
Part #: TEN9949O2S
Price: $6.00 (USD) 
Bosch Motorsport LSU 4.9 Wideband Lambda Sensor

This Bosch Lambda sensor is used with aftermarket engine management systems around the world. It's a universal racing oxygen sensor but only works with specialized racing engine management, advanced air/fuel and Lambda gauges, and Bosch Motorsport ECUs and Lambda control boxes (LT4). This is not a universal sensor to work in any production BMW. This is a motorsport-only wideband O2 sensor.

This sensor is designed to measure the oxygen content and Lambda value of exhaust gases in automotive gasoline engines. The wideband Lambda sensor LSU 4.9 is a planar ZrO2 dual cell limiting current sensor with integrated heater. Its monotonic output signal in the range of λ = 0.65 to air makes the LSU capable of being used as a universal sensor for λ = 1 measurement as well as for other Lambda ranges. The connector module contains a trimming resistor, which defines the characteristic of the sensor. The LSU4.9 operates only in combination with a special LSU-IC, used in most Bosch Motorsport ECUs and Lambda control boxes (LT4).

The main benefit of the LSU is the robust design combined with the high Bosch production quality standard.

Application Hints:

  • The Lambda sensor should be installed at a point which permits the measurement of a representative exhaust-gas mixture, which does not exceed the maximum permissible temperature.
  • As far as possible install the sensor vertically (cable upwards).
  • The sensor is not to be fitted near to the exhaust pipe outlet, so that the influence of the outside air can be ruled out.
  • The exhaust piping must be free of leaks in order to avoid the effects of leak-air.
  • Protect the sensor against condensation water.
  • The sensor is not to be coated or painted, nor is wax to be applied or any other forms of treatment.
  • Use only the recommended grease for lubricating the thread.

Application Data:

  • Exhaust Gas Pressure< 4bar
  • Exhaust Gas Temp Range (operating)< 930*C / 1,706*F
  • Exhaust Gas Temp Range (max)< 1,030*C / 1,886*F
  • Hexagon Temp< 600*C / 1,112*F
  • Cable and Protective Sleeve Temp< 250*C / 482*F
  • Connector Temp< 140*C / 284*F
  • Max Vibration (Stochastic Peak Level)< 1,000 m/s2

Mechanical Data:

  • Weight (without cable)120g
  • Length (without cable)84mm
  • Cable Length32.2cm
  • ThreadM18x1.5
  • Wrench Size22mm
  • Tightening Torque40...60Nm

Price is per sensor.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Part #: 0258017032
Price: $199.95 (USD) 
Quantity:   
OEM Bosch Oxygen Sensor - Pre-Cat - Rear Downpipe - E9X 325i 328i 330i E60 525i 528i 530i, E82 128i

Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage.

This is the OEM Bosch oxygen sensor for BMW's with the N52 engine. This sensor is mounted in the rear downpipe before the catalytic converter. Bosch part number 17099. OEM replacement for BMW # 11787558073 and 11787537984.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


This item fits the following BMWs:
2008-2013 E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ E89 BMW Z4 sDrive30i

Part #: 11787558073
Price: $169.95 (USD) 
Quantity:   
Oxygen Sensor - Pre-Cat - Front Downpipe - E9X E82 E60, E83 E85 - N52 N54, E60 This is the OEM Bosch oxygen sensor for BMW's with the N52 & N54 engines. This sensor is mounted in the front downpipe before the catalytic converter. Bosch part number 17098.

This item fits the following BMWs:
2008-2010 E82 BMW 128i 135i
2011 E82 BMW 1M Coupe
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
2007-2013 E93 BMW 335i 335is - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ E89 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is
Part #: 11787558055
Price: $109.95 (USD) 
Quantity:   
OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each

Bosch Universal Oxygen Sensors are perfect for replacing faulty sensors throwing off a check engine lights and causing poor operation and low gas mileage. If you are looking for a cheaper option or are unable to get a hold of the sensor you need, you can reuse part of the original wiring harness to connect this high quality replacement.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Part #: 15733
Price: $72.95 (USD) 
Quantity:   
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