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Bosch 15738 - Oxygen Sensor
Product Overview
The Bosch Oxygen Sensor 15738 is a premium-grade, 4 wire heated oxygen sensor designed for optimal performance in European vehicles. This sensor plays a critical role in measuring the exhaust concentration of oxygen, enabling real-time monitoring of the air-fuel mixture to ensure efficient engine operation. Engineered to meet OEM standards, the Bosch Oxygen Sensor guarantees reliability and precise fitment for various models including BMW, Audi, Porsche, and Volkswagen. Choose Bosch 15738 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Bosch 15738 is equivalent to or replaces the following part numbers: O77 906 265 E, O77906265E, 993 606 118 01, 99360611801, 46 60 502, 4660502, O77 906 265 A, O77906265A, O77 906 265 AL, O77906265AL, 3202721, 9202719.
Vehicle Compatibility
- BMW M5 5.0 V10 (2006–2010)
- BMW M6 5.0 V10 (2006–2010)
- BMW Z4 3.2 L6 (2006–2008)
- BMW Alpina B7 4.4 V8 (2006–2008)
- BMW 760i 6.0 V12 (2006)
- BMW 325Ci 2.5 L6 (2005–2006)
- Land Rover Freelander 2.5 V6 (2005)
- Porsche Boxster 2.7 H6 (2002–2003)
- Audi A6 2.8 L6 (2004)
- Volkswagen Jetta 2.0 L4 (2005)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
- Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Bosch 15738 Oxygen Sensor do?
The Bosch Oxygen Sensor measures the concentration of oxygen in the exhaust gases of your vehicle. This vital information helps the engine control unit adjust the air-fuel mixture, improving engine efficiency and reducing emissions.
How do I know if my Oxygen Sensor needs replacement?
Common signs that your Bosch 15738 Oxygen Sensor may need replacement include poor fuel economy, increased emissions, a check engine light, or rough engine performance.
Can I install the Bosch 15738 myself?
Yes, the Bosch 15738 Oxygen Sensor can be installed by DIY enthusiasts. However, it is essential to follow proper safety precautions and consult your vehicle's service manual for specific installation instructions.
What are the symptoms of a faulty Oxygen Sensor?
Symptoms of a failing Oxygen Sensor include poor engine performance, increased fuel consumption, and the illumination of the check engine light. If you see DTCs such as P0131, P0132, P0133, it may indicate a failing Oxygen Sensor.
Why should I choose Bosch for my Oxygen Sensor needs?
Bosch is a trusted name in automotive components, known for quality and reliability. Order Bosch 15738 today for a factory-correct replacement that restores safety and performance.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandBosch
- ManufacturerBosch
- MPN15738
- Part TypeOxygen Sensor
- OE Part NumbersO77 906 265 E, O77906265E, O77 906 265 A, O77906265A, 9202719, 46 60 502, 4660502, 993 606 118 01, 99360611801, O77 906 265 AL, O77906265AL, 3202721
- FeaturesAutomotive Color / Finish : Steel
Automotive Item Weight (lbs) : 0.361558 lb
Connector Gender : Male
Connector Shape : Round
Grade Type : Regular
Heated (Oxygen Sensor) : Yes
Hex Size (Oxygen Sensor) : 22 mm
Housing Material : Metal
Length (Sealing Surface To End Of Connector) : 25.7874015748032 in
Mounting Bracket Included : No
Mounting Type : Threaded
Overall Length : 26.9685039370079
Oxygen Sensor Type : Narrow-band heated
Prop 65 Warning Label Required? : No
Sensor Type : Heated
Terminal Gender : Female
Terminal Quantity : 4
Terminal Type : Threaded
Thread Diameter : 18
Thread Size : 18
Universal Or Specific Fit : Universal
Wire Quantity : 4
Wiring Harness Included : Yes
Wiring Harness Length : 23.27
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1994 | Volvo | 850 | Turbo (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1994 | Volvo | 850 | Base (2.4 L5 GAS) | Position: Downstream |
| 1994 | Volvo | 850 | GLT (2.4 L5 GAS) | Position: Downstream |
| 1994 | Porsche | 911 | Carrera 2 (3.6 H6 GAS) | Position: Upstream, Aspiration: Naturally Aspirated, Notes: Late Production, Notes: New Body Style |
| 1994 | Porsche | 911 | Carrera 4 (3.6 H6 GAS) | Position: Upstream, Aspiration: Naturally Aspirated, Notes: Late Production, Notes: New Body Style |
| 1994 | Porsche | 911 | RS America (3.6 H6 GAS) | Position: Upstream, Aspiration: Naturally Aspirated, Notes: Late Production, Notes: New Body Style |
| 1994 | Porsche | 911 | Speedster (3.6 H6 GAS) | Position: Upstream, Aspiration: Naturally Aspirated, Notes: Late Production, Notes: New Body Style |
| 1994 | Porsche | 911 | Turbo 3.6 (3.6 H6 GAS) | Position: Upstream, Aspiration: Naturally Aspirated, Notes: Late Production, Notes: New Body Style |
| 1995 | Volvo | 850 | T-5R (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1995 | Volvo | 850 | Turbo (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1995 | Volvo | 850 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream |
| 1995 | Volvo | 850 | GLT (2.4 L5 GAS) | Position: Upstream, Position: Downstream |
| 1995 | Volvo | 960 | Base (2.9 L6 GAS) | Position: Upstream |
| 1995 | Porsche | 911 | Carrera (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1995 | Porsche | 911 | Carrera 4 (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1996 | Volvo | 850 | R (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1996 | Volvo | 850 | Turbo (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1996 | Volvo | 850 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream |
| 1996 | Volvo | 850 | GLT (2.4 L5 GAS) | Position: Upstream, Position: Downstream |
| 1996 | Volvo | 960 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1996 | Porsche | 911 | Carrera (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1996 | Porsche | 911 | Carrera 4 (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1996 | Porsche | 911 | Carrera 4S (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1996 | Porsche | 911 | Targa (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1996 | Porsche | 911 | Turbo (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1996 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1996 | Mercedes-Benz | S420 | Base (4.2 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1996 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1996 | Mercedes-Benz | SL500 | Base (5.0 V8 GAS) | Position: Downstream, Position: Upstream Left, Position: Upstream Right |
| 1996 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 1997 | Volvo | 850 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated |
| 1997 | Volvo | 850 | GLT (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Turbocharged |
| 1997 | Volvo | 850 | R (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1997 | Volvo | 850 | T-5 (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1997 | Volvo | V90 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1997 | Volvo | S90 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1997 | Volvo | 960 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1997 | Porsche | Boxster | Base (2.5 H6 GAS) | Position: Upstream, Position: Downstream |
| 1997 | Porsche | 911 | Carrera (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1997 | Porsche | 911 | Carrera 4 (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1997 | Porsche | 911 | Carrera 4S (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1997 | Porsche | 911 | Targa (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1997 | Porsche | 911 | Turbo (3.6 H6 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1997 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1997 | Mercedes-Benz | E420 | Base (4.2 V8 GAS) | Position: Downstream, Position: Upstream Left, Position: Upstream Right |
| 1997 | Mercedes-Benz | S420 | Base (4.2 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1997 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1997 | Mercedes-Benz | SL320 | Base (3.2 L6 GAS) | Position: Downstream, Position: Upstream |
| 1997 | Mercedes-Benz | SL500 | Base (5.0 V8 GAS) | Position: Downstream, Position: Upstream Left, Position: Upstream Right |
| 1997 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Volvo | C70 | Base (2.3 L5 GAS) | Position: Upstream, Position: Downstream, Notes: Late Production, Early Production |
| 1998 | Volvo | C70 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Notes: Early Production, Late Production |
| 1998 | Volvo | S70 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1998 | Volvo | S70 | GLT (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Naturally Aspirated, Aspiration: Turbocharged |
| 1998 | Volvo | S70 | T5 (2.3 L5 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Volvo | V70 | R (2.3 L5 GAS) | Position: Upstream, Position: Downstream, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V70 | T5 (2.3 L5 GAS) | Position: Upstream, Position: Downstream, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V70 | AWD (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Turbocharged, Aspiration: Naturally Aspirated, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V70 | Base (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Turbocharged, Aspiration: Naturally Aspirated, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V70 | GLT (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Turbocharged, Aspiration: Naturally Aspirated, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V70 | X/C AWD (2.4 L5 GAS) | Position: Upstream, Position: Downstream, Aspiration: Turbocharged, Aspiration: Naturally Aspirated, Notes: From Chassis # 342001, To Chassis # 342000 |
| 1998 | Volvo | V90 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1998 | Volvo | S90 | Base (2.9 L6 GAS) | Position: Downstream, Position: Upstream |
| 1998 | Porsche | Boxster | Base (2.5 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Porsche | 911 | Carrera (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Porsche | 911 | Carrera 4 (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Porsche | 911 | Carrera 4S (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Porsche | 911 | Carrera S (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Porsche | 911 | Targa (3.6 H6 GAS) | Position: Upstream, Position: Downstream |
| 1998 | Mercedes-Benz | CL600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1998 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1998 | Mercedes-Benz | CL500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1998 | Mercedes-Benz | S420 | Base (4.2 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1998 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1998 | Mercedes-Benz | SL500 | Base (5.0 V8 GAS) | Position: Downstream, Position: Upstream Left, Position: Upstream Right |
| 1998 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 1993 | Volvo | 850 | GLT (2.4 L5 GAS) | Position: Downstream |
| 1999 | Porsche | Boxster | Base (2.5 H6 GAS) | Position: Upstream, Position: Downstream |
| 1999 | Porsche | 911 | Carrera (3.4 H6 GAS) | Position: Upstream, Position: Downstream |
| 1999 | Porsche | 911 | Carrera 4 (3.4 H6 GAS) | Position: Upstream, Position: Downstream |
| 1999 | Mercedes-Benz | CL600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1999 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Position: Downstream, Position: Upstream |
| 1999 | Mercedes-Benz | CL500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1999 | Mercedes-Benz | S420 | Base (4.2 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1999 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | Position: Downstream Right, Position: Upstream, Position: Downstream Left |
| 1999 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 2000 | Porsche | Boxster | Roadster (2.7 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2000 | Porsche | Boxster | Roadster S (3.2 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2000 | Porsche | 911 | Carrera (3.4 H6 GAS) | Position: Downstream, Position: Upstream |
| 2000 | Porsche | 911 | Carrera 4 (3.4 H6 GAS) | Position: Downstream, Position: Upstream |
| 2000 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 2001 | Porsche | Boxster | Roadster (2.7 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2001 | Porsche | Boxster | Roadster S (3.2 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2001 | Porsche | 911 | Carrera (3.4 H6 GAS) | Position: Downstream, Position: Upstream |
| 2001 | Porsche | 911 | Carrera 4 (3.4 H6 GAS) | Position: Downstream, Position: Upstream |
| 2001 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | Position: Upstream, Position: Downstream |
| 2002 | Porsche | Boxster | Roadster (2.7 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2002 | Porsche | Boxster | Roadster S (3.2 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front |
| 2002 | Mercedes-Benz | SL600 | Base (6.0 V12 GAS) | |
| 2003 | Porsche | Boxster | Roadster (2.7 H6 GAS) | Position: Downstream Rear, Position: Upstream, Position: Downstream Front, Notes: Located in Exhaust Manifold |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.








