YHTAUTO
0 ratings
YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i
genuine image
YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i
YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i
Item #: 61940634

YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i

Item #: 61940634

XCD 204

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Tuesday, July 21
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Comprehensive Replacement Set
Includes four sensors for complete upstream and downstream coverage, ensuring optimal engine performance and emissions control for a variety of BMW models.
Direct Fit
Designed to fit BMW X3, X5, Z3, Z4, and several i-series models perfectly, allowing for hassle-free installation without modifications, saving time and effort.
Enhanced Fuel Efficiency
Improves overall fuel efficiency by providing accurate oxygen level readings, helping the engine run more efficiently and reducing harmful emissions for a cleaner drive.

Product Details

Shop YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i online at a best price in Saint Lucia. B08743GY62
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • BMW Owners

    Ideal for BMW owners needing reliable performance and emissions control in various models, improving overall engine efficiency.

  • DIY Mechanics

    Perfect for DIY enthusiasts who enjoy handling their own car repairs, providing a cost-effective solution for sensor replacement.

  • Emissions Testing

    Beneficial for users preparing for emissions testing, ensuring that vehicles meet regulations with properly functioning O2 sensors.

Not Suitable For
  • Non-BMW Vehicles

    Not suitable for vehicles outside the specified BMW models, as compatibility issues may arise during installation.

  • Professional Mechanics

    Less advantageous for professionals who require premium sensors or specific brands to meet higher standards of performance.

  • Performance Upgrades

    Not ideal for car enthusiasts focused on high performance, as these sensors do not enhance power or racing capabilities.

Product Description

YHTAUTO Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for BMW X3 X5 Z3 Z4 323i 325i 328i 330i 525i 528i 530i

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the function of an O2 oxygen sensor in BMW vehicles?

    Answer: The O2 oxygen sensor plays a crucial role in monitoring the exhaust gases emitted from your BMW's engine. By measuring the level of oxygen present, it helps the engine control unit (ECU) regulate the air-fuel mixture for optimal combustion. This not only enhances fuel efficiency but also minimizes harmful emissions, promoting a cleaner environment. If your sensor is faulty, it can lead to poor engine performance, increased fuel consumption, and higher emissions, making timely replacement essential for maintaining your vehicle's health.
  • Question: Why should I replace both upstream and downstream O2 sensors?

    Answer: Replacing both upstream and downstream O2 sensors is recommended due to their complementary functions. The upstream sensor measures the oxygen content before the catalytic converter, optimizing air-fuel mixture, while the downstream sensor monitors the converter’s efficiency. If one sensor is failing, it can affect the other's performance, leading to reduced efficiency and increased emissions. By changing them together, you ensure accurate readings and maintain your vehicle’s overall regulatory compliance and performance.
  • Question: How do I know if my O2 sensors need replacement?

    Answer: Signs that your O2 sensors may need replacing include a check engine light illuminated on your dashboard, decreased fuel efficiency, rough engine idling, or increased exhaust emissions. Additionally, abnormal engine performance such as stalling or difficulty in acceleration could indicate sensor issues. Regular monitoring of your vehicle's performance can help you catch these symptoms early, preventing further engine problems and ensuring your vehicle runs smoothly.
  • Question: Can I install the O2 sensors myself, or should I hire a professional?

    Answer: While many car enthusiasts may choose to install O2 sensors themselves, it's recommended to consult a professional mechanic if you're unsure. The installation process often requires tools like a wrench and oxygen sensor socket for proper access to the sensors. Additionally, incorrect installation may lead to persistent engine issues or improper readings. Hiring a professional ensures that the sensors are calibrated correctly, helping to restore your vehicle's performance efficiently.
  • Question: What type of vehicles are compatible with these O2 sensors?

    Answer: These O2 sensors are compatible with a variety of BMW models, including the X3, X5, Z3, Z4, as well as the 323i, 325i, 328i, 330i, 525i, 528i, and 530i. It’s important to check your vehicle’s specifications to ensure compatibility before purchasing. This set provides a versatile solution for enhancing the performance of several BMW models, making it a worthwhile investment for BMW owners seeking reliable engine management solutions.
  • Question: What are the differences between upstream and downstream O2 sensors?

    Answer: Upstream and downstream O2 sensors serve different roles within your vehicle’s exhaust system. The upstream sensor, located before the catalytic converter, primarily measures the oxygen levels to optimize fuel efficiency. In contrast, the downstream sensor is situated after the catalytic converter and ensures its efficiency by analyzing the exhaust gases post-conversion. Understanding these differences is essential for diagnosing issues effectively and guaranteeing that both sensors function optimally for enhanced vehicle performance.
  • Question: How will replacing O2 sensors affect my vehicle's fuel economy?

    Answer: Replacing your O2 sensors can lead to improved fuel economy, as these sensors directly influence the engine’s air-fuel mixture. A faulty sensor can cause the engine to run rich, consuming more fuel than necessary. By installing new O2 sensors, you restore accurate readings to the ECU, allowing for optimal combustion and enhanced fuel efficiency. This change not only saves you money at the pump but also contributes positively to the environment by ensuring cleaner exhaust emissions.
  • Question: Are there any special precautions I need to take when handling O2 sensors?

    Answer: When handling O2 sensors, it’s important to avoid touching the sensor’s tip and ensure that it is clean. The sensor is sensitive to contaminants, which can affect its performance. Additionally, use appropriate tools for installation to avoid stripping threads or damaging the sensor. Make sure the engine is cool before starting the replacement to prevent burns. Taking these precautions can help ensure the longevity and effectiveness of your new O2 sensors.
  • Question: How often should I check or replace the O2 sensors in my BMW?

    Answer: Regular checks of your O2 sensors are advised, typically every 30,000 to 100,000 miles, depending on your driving conditions and vehicle maintenance. However, if you notice any performance issues such as irregular idling or a decrease in fuel economy, you should inspect them sooner. Keeping an eye on your car’s performance metrics can prevent sensor-related problems from escalating and ensure your BMW runs efficiently and reliably.
  • Question: Where can I buy the Set of 4 Upstream & Downstream O2 Oxygen Sensors for BMW?

    Answer: You can purchase the Set of 4 Upstream & Downstream O2 Oxygen Sensor Replacement for your BMW from Ubuy. Ubuy offers a wide selection of automotive parts, including O2 sensors specifically designed for various BMW models. Their user-friendly platform allows you to find the right components for your vehicle easily, ensuring you maintain optimal performance and efficiency.

YHTAUTO Oxygen Editorial Review

No editorial reviews found

Customer Reviews & Ratings

4.0
1 customers ratings
  • 5 Star
    0%
  • 4 Star
    100%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

XCD 204

Order now and get it around Tuesday, July 21

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.