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BMW 325i Replacement Oxygen Sensor Information

Read Reviews for BMW 325i Oxygen Sensor -
4.9 stars - (56 Reviews)
BMW 325i Oxygen Sensor Reviews
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Elegant vehicles like the plush BMW 325i are built to be handled with care and attention and then always given proper repairs. To preserve the style and elegance you chose with your BMW 325i, it's important to use only the best names in OEM and upgrade parts. When you selected the BMW, you chose a vehicle of high quality and great value; you can backstop that choice by using only the finest parts. The distinctive appeal of a refined BMW is the epitome of German expertise, style and function. BMW is a superlative builder of stylish cars which provide precision handling and fast driving capabilities. The BMW 325i Oxygen Sensor is the system used to control the level of oxygen in your vehicle's exhaust system. These sensors are necessary components that are installed in the fuel system to increase fuel performance. Usually found on the exhaust manifold, this component reports oxygen levels measured in the engine's fuel system to the computer. Your vehicle has a place in your heart because it has excellent performance and awesome style, so to have it running in its best shape you need the ultimate in quality parts and accessories. Whether it's your engine components or steering elements, maintaining your vehicle with the best parts always pays off in the long run. Buying a BMW is an intelligent choice, and maintaining it in top condition is even more sensible. Usually the most frustrating thing about fixing your car or truck is finding a good source of quality parts. Shop www.partsgeek.com whenever you want the best quality auto and truck parts and always receive topnotch service and a great price year-round.


They are available for the following BMW 325i years: 2006, 2005, 2004, 2003, 2002, 2001, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 06, 05, 04, 03, 02, 01, 95, 94, 93, 92, 91, 90, 89, 88, 87. This part is also sometimes called BMW 325i O2 Sensor. We stock oxygen sensor parts for most BMW models including 528i, X5, 328i, 540i, 740iL, 525i, 530i, M3, 330Ci, 325Ci, Z3, 323i, 330i, X3, 740i, 318i, 325xi, M5, 535i, 745Li, 328is, 325is, 335i, 318ti, 750iL, 330xi, 323Ci, 745i, Z4, 325e, 318is, 328xi, 323is, 528e, 735i, 535xi, 545i, 750Li, 325es and 325.

We stock these Oxygen Sensor brands for the BMW 325i: Bosch, Walker Products and Genuine.


Oxygen Sensor for BMW 325i - Partsgeek
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Bosch W0133-1607726
Oxygen Sensor
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Product List Price:
$282.20
Our List Price: $53.48
(>25) In Stock
Product SKU: W0133-1607726
Product Note: OE Connector - Before Catalyst : Regulating Lambda Probe : 320mm
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2001 (01) BMW 325i

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Bosch 13477
Oxygen Sensor
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Our List Price: $59.33
(>35) In Stock
Product SKU: 13477
Product Note: Actual OE Oxygen Sensor
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2002 (02) BMW 325i 2.5L 6 Cyl M54 

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(Read reviews)
Product List Price:
$282.20
Our List Price: $62.48
(>25) In Stock
Product SKU: W0133-1607575
Product Note: OE Connector - After Catalyst : Lambda Monitor Sensor : 990mm
Important Product Info: - 2 Required
Position of Product: Rear
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2001 (01) BMW 325i

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Bosch 13477
Oxygen Sensor
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Our List Price: $59.33
(>35) In Stock
Product SKU: 13477
Product Note: Actual OE Oxygen Sensor
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2001 (01) BMW 325i 2.5L 6 Cyl M54 

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Bosch 15109
Oxygen Sensor
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Our List Price: $65.33
(>35) In Stock
Product SKU: 15109
Product Note: Actual OE Oxygen Sensor
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Downstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2001 (01) BMW 325i 2.5L 6 Cyl M54 

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Bosch 17215
Oxygen Sensor
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Our List Price: $118.33
(>35) In Stock
Product SKU: 17215
Product Note: Actual OE Oxygen Sensor -- For cylinders 1-3
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2004 (04) BMW 325i 2.5L 6 Cyl M54 

Click to Enlarge
Bosch 15109
Oxygen Sensor
Close
Loading Reviews...
Our List Price: $65.33
(>35) In Stock
Product SKU: 15109
Product Note: Actual OE Oxygen Sensor
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Downstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2002 (02) BMW 325i 2.5L 6 Cyl M54 

Click to Enlarge
Bosch W0133-1607726
Oxygen Sensor
Close
Loading Reviews...
Product List Price:
$282.20
Our List Price: $53.48
(>25) In Stock
Product SKU: W0133-1607726
Product Note: OE Connector - Before Catalyst : Regulating Lambda Probe : 320mm
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2002 (02) BMW 325i

Click to Enlarge
(Read reviews)
Product List Price:
$282.20
Our List Price: $62.48
(>25) In Stock
Product SKU: W0133-1607575
Product Note: OE Connector - After Catalyst : Lambda Monitor Sensor : 990mm
Important Product Info: - 2 Required
Position of Product: Rear
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle
• 2002 (02) BMW 325i

Click to Enlarge
(Read reviews)
Product List Price:
$210.33
Our List Price: $102.48
(>25) In Stock
Product SKU: W0133-1896014
Product Note: OE Connector - Before Catalyst : Cylinders 1-3 : Regulating Lambda Probe: 900mm
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Catalog: A
Vehicle Engine
• 2004 (04) BMW 325i M56 

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Bosch 17216
Oxygen Sensor
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Our List Price: $118.33
(>35) In Stock
Product SKU: 17216
Product Note: Robert LLC OE Style Oxygen Sensor -- For cylinders 4-6
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2004 (04) BMW 325i 2.5L 6 Cyl M54 

Click to Enlarge
Bosch 15680
Oxygen Sensor
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Our List Price: $105.33
(>35) In Stock
Product SKU: 15680
Product Note: Actual OE Oxygen Sensor -- For cylinders 1-3
Position of Product: Downstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2004 (04) BMW 325i 2.5L 6 Cyl M56 

Click to Enlarge
Bosch 13231
Oxygen Sensor
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Our List Price: $62.33
(24) In Stock
Product SKU: 13231
Product Note: Robert LLC OE Style Oxygen Sensor -- Exact fit
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 1989 (89) BMW 325i 2.5L 6 Cyl 

Click to Enlarge
Bosch 15681
Oxygen Sensor
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Our List Price: $92.33
(>35) In Stock
Product SKU: 15681
Product Note: Robert LLC OE Style Oxygen Sensor -- For cylinders 4-6
Position of Product: Downstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 2004 (04) BMW 325i 2.5L 6 Cyl M56 

Click to Enlarge
Bosch 13231
Oxygen Sensor
Close
Loading Reviews...
Our List Price: $62.33
(24) In Stock
Product SKU: 13231
Product Note: Robert LLC OE Style Oxygen Sensor -- Exact fit
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Engine
• 1995 (95) BMW 325i 2.5L 6 Cyl M50TU 

Image is not vehicle specific
(Read reviews)
Our List Price: $188.73
with FREE Shipping
(8) In Stock
Product SKU: 11 78 7 558 055
Product Note: Oxygen Sensor -- from 11/05; Before Catalyst in Exhaust Manifold
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: G
Vehicle
• 2006 (06) BMW 325i

Click to Enlarge
Bosch 13477
Oxygen Sensor
Close
Loading Reviews...
Our List Price: $55.98
(16) In Stock
Product SKU: 13477
Product Note: Actual OE Oxygen Sensor -- To 02/2003
Features:
  • Protection tube ensures 100% accurate sensor performance
  • Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
  • Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
  • Coated threads for easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: H
Vehicle Engine
• 2003 (03) BMW 325i 2.5L 6 Cyl M54 


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Research on Oxygen Sensor for BMW 325i

It is common knowledge that your vehicle's engine is responsible for creating the energy that spins your wheels and propels your vehicle on the road. This energy is created through the combustion process. Air and fuel are channeled into each cylinder's combustion chamber where they are compressed and ignited. Many drivers fail to realize that the mixture within each cylinder's chamber must be carefully measured. The oxygen sensor (OS) plays a fundamental role in ensuring an optimum ratio between the air and fuel. All oxygen sensors including the 2008 BMW 328i o2 sensor and 2001 BMW 325i oxygen sensor are located within the exhaust stream.

Maintaining the Ideal Ratio

The ideal ratio between oxygen and fuel channeled in your engine's combustion chambers is 14.7 to 1. Very little will without doubt result to a rich mixture. In such cases, the combustion process results in unburned fuel flowing out of the combustion chamber right into the exhaust system. This results to pollution and will cause your vehicle to fail an emissions test.

Excess air in the combustion chamber causes a lean mixture. That generates excess nitrogen oxides, a dangerous pollutant. Not only does this overwork your car's catalytic converter, but it can also lead to engine damage. Maintaining the ideal ratio between air and fuel mixture requires constant monitoring and this is the fundamental role of the oxygen sensor.

When the Component Fails

An oxygen sensor is estimated to last up to 80,000 miles, but can fail earlier depending on your driving habits. If it fails, your car's computer will not be in a position to make adjustments to the ratio of air-fuel mixture used in your engine's combustion chambers. Consequently, the closed feedback loop that usually ensures the mixture is optimized opens. Your emissions rise, potentially causing your vehicle to fail an emissions test. Your gas mileage will fall as your engine becomes less efficient. You may also notice a decline in performance as the air-fuel mixture runs rich or lean. If your oxygen sensor fails, have an OEM-certified replacement installed as soon as possible. Otherwise, your engine may begin experiencing problems that will worsen with time.

BMW 325i Oxygen Sensor Replacement Cost

A 2001 BMW 325i oxygen sensor replacement will cost you between $532 to $691 if performed in Austin, Texas. Ensure that you address the cause of your sensor's failure when replacing it. It could be contamination with coolant or exhaust leaks or any other cause. Be sure to have it replaced it so as to adhere to emission guidelines.

Where is the oxygen sensor?

Newer vehicle models are now equipped with an oxygen sensor for each cylinder for a more efficient engine. Sensors are located in the exhaust stream underneath the car either at the front or back of the catalytic converter. A faulty oxygen sensor will cost you poor gas mileage and eventually your catalytic converter may get damaged. Make PartsGeek.com your online retailer of choice for all your automobile parts and accessories for your vehicle.



Some of our Customer Reviews
Very Satisfied
Reviewer: Cunningham

Great Results....etc...al...

1993 BMW 325i Oxygen Sensor

Very Satisfied
Reviewer: Dmitriy

Very fast delivery and good customer service

2004 BMW 325i Oxygen Sensor

Very Satisfied
Reviewer: Allen

Easy to install, works great, resolved the error code, and very satisfied with the part and Parts Geek. Part is exactly the same as the one BMW originally put in.

2002 BMW 325i Oxygen Sensor

Somewhat Satisfied
Reviewer: Samj6084

This product is good and cheap which is why I bought it. But when I got it and opened it up and read the instructions it they said everything all wrong like to use but connoctors. You don't use them that's the worst way to do electrical.

The right way is to solder and electical tape them.

1987 BMW 325i Oxygen Sensor

Very Satisfied
Reviewer: o2 sensers

good parts fit well easey to change to had a lot of parts to remove from the motor but that just bmw

2004 BMW 325i Oxygen Sensor

Neither Satisfied Nor Dissatisfied
Reviewer: bmw o2 sensers

the wires are to short and new plugs are square not round. i had to cut wires from the old plugs and splice them to new o2 sensors

2004 BMW 325i Oxygen Sensor


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