Oxygen sensor bmw x5

Oxygen sensor bmw x5 DEFAULT

Pre-cat oxygen sensor for Diesel models E90 335d, F10 535d, E70 X5 35d, F15 X5 35d.

The pre-cat O2 sensors, also known as Lambda probes, on the 335d, 535d, and X5 35d are some of the most important sensors on the M57 and N57 engines. The pre-cat sensors installed ahead of the DPF tell the engine computer how well the engine is working (note: not how clean it is, that's the post-cat sensor). The pre-cat sensors give the ECU feedback on the engine tuning - if it's running lean or rich - and the ECU makes adjustments based on their data. The ECU adjusts fuel injection based on the data so the sensors also affect fuel economy in addition to performance. An integrated heater circuit helps prolong the life of the sensor but can also fail and give a check engine light.

Signs of an O2 sensor failure include worse fuel economy, lack of torque, and fault codes for the sensor. It is a good idea to replace the O2 sensors at regular intervals rather than waiting for a failure. Since their performance degrades over time you may not even notice the loss in performance or economy. Since the complete O2 sensor is part of the emissions system, a bad sensor may not set multiple OBD Readiness flags.

This is an OEM pre-cat O2 sensor manufactured by Bosch - the original supplier to BMW for this part, as well as many other sensors (Bosch also invented the oxygen sensor). As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.

BMW Fitments:

3 Series
E90 / E91 / E92 / E93 (06-13) > 335d
5 Series
F10 / F11 (11-16) > 535d xDrive
X5 Series
E70 X5 (07-13) > X5 xDrive35d
X5 Series
F15 X5 (2014+) > X5 xDrive35d

/5 stars ( reviews)

Sours: https://www.bimmerworld.com/Exhaust/O2-Sensors/Pre-Cat-Oxygen-Sensor-Bosch-13627801158.html

BMW E70 X5 xDrive50i N63 4.4L Oxygen Sensors & Replacement Parts

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7/8"(22mm) Flexible Oxygen Sensor Wrench

The proper tool to remove difficult-to-reach oxygen sensors

Brand:
Schwaben - Corporate Logo
ES#:
240942
Mfg#:
FO-78
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$35.95 $30.56

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O2 Sensor - Post Cat

Keep your BMW mileage up and running correctly

Brand:
Bosch - Corporate Logo
ES#:
3988566
Mfg#:
11787614322

$52.95

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Universal 4-Wire Oxygen Sensor - Priced Each

Four wire universal OBD-II Oxygen sensor

Brand:
Bosch - Corporate Logo
ES#:
2532224
Mfg#:
15733

o2 sensor - Pre cat

Replace worn out and or malfunctioning O2 sensors to make your vehicles emissions compliant

Brand:
Genuine BMW - Corporate Logo
ES#:
2589930
Mfg#:
11787614322

24% off MSRP$292.13 $221.04

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Oxygen Sensor Tool - Angled Handle - 7/8" - Bavarian Autosport

Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions.

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673911
Mfg#:
B8800066
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Oxygen Sensor Tool - Straight Handle - 7/8" - Bavarian Autosport

Slotted, pivoting head has both hexagon and double hexagon drive.

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673910
Mfg#:
B8800065
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$21.95 $20.85

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Offset Oxygen Sensor Wrench- Extended

Extra length is needed sometimes

Brand:
CTA Tools - Corporate Logo
ES#:
4001169
Mfg#:
CTA2065

$13.59

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Universal Oxygen Sensor Bung - Priced Each

Stainless steel weld-in nut for any O2 sensor

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022

$14.95

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Offset Oxygen Sensor Wrench - Stubby

Great when space is limited

Brand:
CTA Tools - Corporate Logo
ES#:
4001174
Mfg#:
CTA2069

$12.87

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Dual Drive Oxygen Sensor Wrench

Tool comes with both 1/2" and 3/8" drive.

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390

$22.49

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Thin Wall Oxygen Sensor Socket

Out of space? Use this thin wall socket.

Brand:
CTA Tools - Corporate Logo
ES#:
4001177
Mfg#:
CTA2064

$14.40

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Oxygen Sensor Thread Chaser

Remove rust and dirt for easy installation with this tool

Brand:
CTA Tools - Corporate Logo
ES#:
4001163
Mfg#:
CTA2068

$7.93

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More About Oxygen Sensors & Replacement Parts

A common source of check engine lights is a failed or failing oxygen sensor. When the O2 sensor can't register oxygen content before and after your catalytic converter, it doesn't know what to do with the fuel mixture and will default to run rich. Replace old failing oxygen sensors with OEM O2 sensors or quality aftermarket O2 sensors if you're looking to save a few bucks.

Sours: https://www.ecstuning.com/BMW-E70-X5_xDrive50i-N63_4.4L/Engine/Emissions/Oxygen_Sensor/
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BMW Oxygen Sensor - O2 Sensors for BMW X Series E70 (2007-2013)

Clear BMW chassisChange Your Vehicle

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.

OEM Bosch Rear Bank 2 Post-Cat Oxygen Sensor - 490mm - E70 E83 E82/8...

Bosch - Corporate Logo

T#:374247

Part#:11787545075

$97.95 Free Shipping

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. 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. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price.

This is the OEM Bosch oxygen sensor for BMW's with the N52, N54, and N55 3.0L engines. This 490mm bank 2 oxygen sensor is mounted after the catalytic converter.

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!

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Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm

Turner Motorsport - Corporate Logo

T#:587345

Part#:TMS02BUNGKT

Sale - Save 20%$3.95

$3.16 Free Shipping on orders $49 and up

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Finish your custom exhaust with this T304 stainless steel weld-in oxygen sensor bung. PART DESIGN CNC-cut from T304 Stainless Steel for corrosion resistance Radiused to match 2.50"-3.00" OD tubing for ease of welding Threaded for M18x1.5mm RH oxygen sensors INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding. Show More Show Less

OEM Bosch Post-Cat Oxygen Sensor (O2 Sensor) - E9X M3

Bosch - Corporate Logo

T#:14663

Part#:11787539125

$88.95 Free Shipping on orders $49 and up

Add to Wish List

The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. 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. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance.

This is a Bosch O2 sensor - also known as a Lambda probe. Bosch is an OEM supplier to BMW.

Position: after the catalytic converter (post-cat).

This item fits the following BMWs:
2008-2013 E90 E92 E93 BMW M3 Sedan, Coupe, Convertible

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OEM Bosch Rear Bank 1 Post-Cat Oxygen Sensor - 560mm - E70 E83 E82/8...

Bosch - Corporate Logo

T#:374246

Part#:11787545074

$115.95 Free Shipping

Add to Wish List

The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. 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. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price.

This is the OEM Bosch oxygen sensor for BMW's with the N52, N54, and N55 3.0L engines. This 560mm bank 1 oxygen sensor is mounted after the catalytic converter.

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!

Show More Show Less


Genuine BMW Rear Oxygen Sensor - Bank 1 post-Cat

Genuine BMW - Corporate Logo

T#:14669

Part#:11787545074

24% off MSRP$292.13

$221.04 Free Shipping

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Genuine BMW Lambda Monitor Sensor - L= 560Mm
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5 X5,E82,E83 X3,E89 Z4,E90,E92,E93

Fits BMW Engines including:
N51,N51,N52,N52N,N54,N54T

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Sours: https://www.turnermotorsport.com/BMW-E70/c-101-bmw-oxygen-sensors-o2-sensors

BMW X5 Oxygen Sensor Replacement

As is always the case, the cost of the repair depends on the make, model, and year of your car.

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$90.58 Range for All Vehicles $1010.5

Average Shop Price $428

RepairSmith Price $243

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This range covers an average oxygen sensor replacement. Tell us your car to get a guaranteed price from RepairSmith.

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Learn more about Oxygen Sensors:

RepairSmith offers upfront and competitive pricing. The average cost for BMW X5 Oxygen Sensor Replacement is $193. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

BMW logo

2010 BMW X5

4.8L V8 xDrive48i • 74,000 miles

Acton ,  CA 93510

$167 - $204

BMW logo

2007 BMW X5

3.0L L6 • 150,000 miles

San Jose ,  CA 95118

$171 - $209

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2007 BMW X5

3.0L L6 • 150,000 miles

San Jose ,  CA 95118

$171 - $209

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2004 BMW X5

4.8L V8 • 125,000 miles

Las Vegas ,  NV 89131

$176 - $216

BMW logo

2004 BMW X5

4.8L V8 • 125,000 miles

Las Vegas ,  NV 89131

$176 - $216

BMW logo

2007 BMW X5

3.0L L6 • 130,000 miles

Yorba Linda ,  CA 92886

$158 - $193

BMW logo

2007 BMW X5

3.0L L6 • 130,000 miles

Yorba Linda ,  CA 92886

$158 - $193

BMW logo

2015 BMW X5

4.4L V8 Turbo M • 27,000 miles

Lincoln ,  CA 95648

$176 - $216

BMW logo

2006 BMW X5

3.0L L6 • 204,582 miles

Perris ,  CA 92571

$191 - $233

BMW logo

2006 BMW X5

3.0L L6 • 204,582 miles

Perris ,  CA 92571

$191 - $233

Last Updated:
Sep 7, 2021 12:58 PM

Get A Quote 12-Month | 12,000-Mile Warranty

What is an Oxygen Sensor?

Would you be shocked if I said it’s a sensor to measure oxygen? Okay, but it’s a bit more than that. Cars have both upstream and downstream sensors (also known as O2 sensors). Upstream oxygen sensors are placed in front of the catalytic converter, and measure the amount of oxygen in the exhaust. The car’s computer then uses that data to determine the proper air to fuel ratio.Downstream oxygen sensors are located behind the catalytic converter, and measure the efficiency of the converter.

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Signs of a faulty Oxygen Sensor

Poor performance

No one likes poor performance. That includes you, and it certainly includes your car. Faulty O2 sensors will feed misinformation to your car’s computer. The computer will then alter the engine in a way that leads to less power, some hesitation and jerkiness, and running rough. Which means you’ll be embarrassed the next time you try to show off at a green light.

Check engine light

Oh, the check engine warning light. That light that you pretend isn’t there when it lights up. How has that worked out for you? Try as you might, ignoring a check engine light won’t make it go away. And oxygen sensor failure is a common cause of the light illuminating.

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How urgent is an Oxygen Sensor replacement?

You’re not really in any danger driving around with a busted O2 sensor. Your car will still be safe to drive. But the performance won’t be ideal, and you may fail an emissions test. You don’t need to drop everything and run straight to a repair, but get around to it when you can.

Get a Quote 12-Month | 12,000-Mile Warranty

Related BMW X5 Repairs


Catalytic Converter Replacement EGR Valve Replacement Exhaust Manifold Replacement Exhaust Muffler Replacement Front Oxygen Sensor Replacement Fuel Cap Replacement Fuel Evaporative Canister Replacement Gas Cap Replacement Rear Oxygen Sensor Replacement


Not sure? Let us diagnose

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Coolant Hose Replacement Engine Valves and Cylinder Heads Replacement Crankshaft Sensor Replacement AC Recharge Lower Radiator Hose Replacement Mass Air Flow Sensor Fuel Pump Replacement Engine Valve Adjustment Fuel Evaporative Canister Replacement Left Engine Mount Replacement Right Engine Mount Replacement Coil Spring Replacement Front Hub Assembly Replacement Front Stabilizer Bar Bushing Replacement Rear Stabilizer Bar Link Replacement Rear Strut Mount Replacement Wheel Alignment AC Condenser Replacement

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RepairSmith is here to make car repair easy.

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Sours: https://www.repairsmith.com/i/estimates/exhaust-emissions/oxygen-sensor-replacement/BMW/X5/

X5 oxygen sensor bmw

Get the Best Priced BMW X5 Oxygen Sensor

Research on Oxygen Sensor for BMW X5

If there were no BMW X5 oxygen sensor in your vehicle, it would be spewing out exhaust fumes loaded with toxins and noxious gasses. With air pollution becoming a major issue, laws have been introduced to ensure car manufacturers adopt measures to reduce emissions as much as possible. That is why BMW X5 oxygen sensor is such an important part of the emissions system. It measures the level of oxygen in the emissions, and this information is relayed to the engine's computer, which then adjusts the air fuel mixture accordingly. However, your BMW X5 oxygen sensor is another component of your vehicle that can fail or get damaged. Some of the BMW oxygen sensor problems that you may have to contend with including the following:

Fuel Economy Increases

When the BMW X5 oxygen sensor fails or is failing, you will notice that your vehicle guzzles a lot of fuel. Due to a faulty oxygen sensor, incorrect readings are transmitted to the engine's computer. As a result, computer signals for more fuel, causing a richer-than-usual air fuel mixture. Since more fuel enters the engine for combustion, you will notice an increase in fuel economy. Along with this, you will also have to contend with other issues, including hard start and poor idling.

Check Engine Light Illuminates

The Check Engine Light can illuminate due to multiple issues. And, one such problem is a faulty or failing BMW X5 oxygen sensor. It is important that you diagnose the fault codes correctly. This may require a mechanic, and if it is due to a faulty BMW X5 oxygen sensor, you should replace it right away. Oxygen sensors can fail if they get contaminated by oil or coolant. Of course, the solution is replacing the failed sensors, but you should also ask the mechanic to address the leak. Otherwise, you the sensors will fail again, causing a resurgence of BMW X5 oxygen sensor symptoms.

BMW X5 Fails Pollution Test

BMW oxygen sensors & emissions are connected. So if your vehicle fails a smog test, you can take it for granted that problem lies with the oxygen sensors. Around 50 to 60 vehicles that fail in the pollution tests have faulty oxygen sensors, according to the US Environmental Protection Agency. A defective oxygen sensor could cause a high level of carbon monoxide in your vehicle's exhaust emissions.

BMW Engine Stalls While Driving for No Apparent Reason

If your BMW stalls while you are driving without reason, get a mechanic to inspect the BMW X5 oxygen sensors. Invariably, this will happen when a faulty sensor causes the engine to run lean. This means that insufficient fuel is reaching the engine and hence, it stalls while running.

Cost of Replacing BMW X5 Oxygen Sensor

BMW X5 O2 sensor replacement cost will vary from $158 to $268. Labor costs will be between $61 and $78 while parts will cost about $97 to 190. These prices do not include taxes and fees. If you are looking for quality BMW X5 oxygen sensor, your search ends at PartsGeek. The online store boasts a large inventory of high-quality BMW parts and accessories at affordable prices.

Oxygen Sensors available for the following BMW X5 years: 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 18, 17, 16, 15, 14, 13, 12, 11, 10, 09, 08, 07, 06, 05, 04, 03, 02, 01, 00. This part is also sometimes called BMW X5 O2 Sensor. We stock oxygen sensor parts for most BMW models including 325i, 528i, 328i, X3, 530i, 525i, 540i, 740iL, M3, 325Ci, 330i, Z3, 330Ci, 335i, 323i, 535i, 325xi, 318i, 740i, 745Li, M5, 750Li, 325is, 330xi, 328xi, 328is, 745i, 328i xDrive, Z4, 318ti, 750iL, 323Ci, 750i, 325e, 323is, 550i, 335xi, 535xi, 545i and 318is.

BMW X5 Oxygen Sensor Reviews

Verified Customer

- 2007 BMW X5 Oxygen Sensor

Verified Customer

- 2004 BMW X5 Oxygen Sensor

Verified Customer

- 2002 BMW X5 Oxygen Sensor

Verified Customer

- 2008 BMW X5 Oxygen Sensor

Verified Customer

- 2001 BMW X5 Oxygen Sensor

Verified Customer

- 2009 BMW X5 Oxygen Sensor

Sours: https://www.partsgeek.com/mmparts/oxygen_sensor/bmw/x5.html
2005 BMW X5 O2 sensor replacement

BMW Oxygen Sensor - O2 Sensors for BMW X Series E53 (2000-2006)

Clear BMW chassisChange Your Vehicle

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.

OEM Bosch Oxygen Sensor - mounts before catalytic converter - E46 E3...

Bosch - Corporate Logo

T#:2998

Part#:11781742050

$67.95 Free Shipping on orders $49 and up

Add to Wish List

This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8
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Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm

Turner Motorsport - Corporate Logo

T#:587345

Part#:TMS02BUNGKT

Sale - Save 20%$3.95

$3.16 Free Shipping on orders $49 and up

Add to Wish List

Finish your custom exhaust with this T304 stainless steel weld-in oxygen sensor bung. PART DESIGN CNC-cut from T304 Stainless Steel for corrosion resistance Radiused to match 2.50"-3.00" OD tubing for ease of welding Threaded for M18x1.5mm RH oxygen sensors INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding. Show More Show Less






Sours: https://www.turnermotorsport.com/BMW-E53/c-101-bmw-oxygen-sensors-o2-sensors

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How can I figure out my sensor is a zirconia type?

Zirconia type oxygen sensors have 1 to 4 wires. 1 to 3 wires indicate a zirconia narrowband O2 sensor definitely. In the case of 4 wires, two of the wires have to be identical for heater, whilst the rest two wires have to be different for signal sender and signal ground. Always reference the sensor-side colors of the wires coming out off of sensor head. ECU-side colors may convert through the plugs.

How to find out if it's a narrowband or wideband?

Typically 1 to 4-wire sensors are narrowband. There are exceptions though. A narrowband oxygen sensor's signal is constantly fluctuating in a range of 0 to 1.0 Volts depending on oxygen content in the exhaust gas. Any oxygen sensor that produces higher voltages, is determined to be a wideband oxygen sensor. Keep in mind, although a 4-wire O2 sensor can be wideband too, in common sense only 5 or 6-wire sensors are called wideband. If your sensor has more than 4-wires, oxygen sensor is not applicable.

Which sensor has to be tricked?

In general: the downstream but upstream has to work flawless in full range. If you intend to buy a simulator hence decatting, header or modified exhaust, the downstream sensor has to be fooled by all means. See position diagram .

Headers or precat gutting requires upstream simulator as well.

Questions and answers

- Can I be positive this chip fixes my CEL issue for good and all? - Yes, Magnum oxygen sensor simulator produces a random fluctuation having assigned with suitable cycle and wave accepted by the ECU. Rest assured, all oxygen sensor signal related codes will be gone. Upstream sensor if any has to be in good condition though. Please see prerequisites pertaining to sensor type and quantity of simulators. - What if I simply eliminate factory oxygen sensor? - Oxygen sensor removal will not remedy CEL issue. Suitable fluctuating signal is fundamental to be delivered by the ECU. Zero volt signal triggers another trouble code. - Why is it so important to cancel the trouble code? - While check engine light is on, ECU restricts the engine performance and vehicle is running in safe / limp mode. MPG is also affected negatively. - Do I need to buy a heated simulator or I can stick with this cheaper EZ CEL Fix? - If you can use the heater of the factory oxygen sensor(s), you may wire up this #795 EZ CEL Fix. Heated simulator #661 allows you to remove or eliminate the stock oxygen sensor completely. - What about 'oxygen sensor bungs' 'mini cats' or any other piggybacks are also supposed to sort our FI problems? - The market is teeming with physical gadgets aiming to fix CEL issues. Vast majority of them doesn't take effect on OBDII vehicles made after 1996. They often don't work even on early fuel injected cars. If your vehicle had been manufactured after 1996 or you drive an early model controlled by a sensitive ECU, these gadgets won't help. The definite solution is a circuit conditions realistic signal, as if a working oxygen sensor would be screwed in the factory exhaust. - Can I rally my two harnesses into one simulator? - No, simulators can't be spliced. Get rid of oxygen sensor related CEL issue yet today. Flat catalytic converter gutting or plain-tube decats will spoil low- and mid-end torque hence ruined engine flush due to inadequate exhaust back pressure and higher block temperature thus valves, cylinder head and other engine parts are constantly being exposed to undesired extra heat. True enough, maximum horsepower increases it still pertains to a higher RPM which perishes dynamic kick out acceleration throughout the RPM range, mostly on automatic vehicles, therefore to save money on fuel and enhance low and mid-end torque, highly recommended to install a reliable Decat . Plain decatting is judged unprofessional among serious tuners and enthusiasts. Injected gasoline engines controlled by Electronic Control Unit (ECU) or alias Electronic Control Management (ECM) have oxygen sensor or O2 sensors to measure the amount of oxygen contained in the exhaust gas. These sensors deliver the ECU fluctuating voltage according to the actual oxygen consistence of air fuel mixture. When exhaust system is decatted or heavily modified, ECU is reading an oxygen sensor signal being inconsistent with other engine sensor's signal, or signal is out of the range yet accepted, an O2 sensor-related trouble code will be triggered ending up in check engine light issue. CEL or MIL or FI errors abbreviate these failures. While check engine light is on, ECU runs in so called lean limp mode. Safe mode restricts both the fuel trim and the ignition timing and develops an overall limitation on performance, until problem diagnosed and resolved definitely. Therefore if you modified your engine with any upgrade causes the oxygen sensor deliver lower signal than normally, you need to wire up an Oxygen Sensor Simulator. Although your ECU will be tweaked, mixture's air fuel ratio still will remain incorrect hence decatting or any other exhaust modification. Simulators help you remedy CEL problems but will not achieve that basic remapping is crucial when decatting or modifying an exhaust. You might be interested in our further performance chips in order to boost engine horsepower, improve fuel efficiency or both at the same time. EVO-Tech and Dyno-Boost and Smart-Tune-X fuel controllers remaps the ECU in order to reprogram the engine management to the performance parts preinstalled on the vehicle. They boost the engine horsepower as well as improve fuel mileage. Magnum Tuning has been dealing with manufacture of performance upgrades since 1994. Our experience warrants peak performance, reliability perfect style. Simulators are made in Europe covered by 10-year warranty.

Claims stated in this description are warranted by Magnum Tuning.

Oxygen Sensor Simulators are not CARB Approved, and are never to be used on Pollution Controlled Vehicles or on Public Highways in those states and countries simulators are prohibited. Customer agrees and takes responsibility NOT to install the Oxygen Sensor Simulator in order to pass federal or other emission test or to treat check engine light also referred to as CEL/MIL issues.

Sours: https://www.magnumtuning.com/en/detail/ez-cel-fix-oxygen-sensor-simulator/bmw/x5


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