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          Bosch 17028 - Air / Fuel Ratio Sensor

          MPN: 17028
          The Bosch 17028 Air/Fuel Ratio Sensor monitors exhaust oxygen levels to improve combustion efficiency. Designed for specific BMW models, it ensures reliable performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $87.95
          In stock

          Product Overview

          The Bosch 17028 Air / Fuel Ratio Sensor is an essential component designed to monitor the exhaust concentration of oxygen in BMW vehicles. This premium-grade sensor ensures optimal air-to-fuel mixture, allowing your engine to run efficiently while minimizing harmful emissions. Manufactured to OE standards, the Bosch 17028 offers reliable fitment and performance, making it a dependable choice for your BMW. Choose Bosch 17028 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 17028 is equivalent to or replaces the following part numbers: 11 78 7 535 269, 11787535269.

          Vehicle Compatibility

          • BMW 750Li 4.8 V8 (2006)
          • BMW 750i 4.8 V8 (2006)
          • BMW 550i 4.8 V8 (2006)
          • BMW 650i 4.8 V8 (2006)

          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 17028 Air / Fuel Ratio Sensor do?

          The oxygen sensor measures the concentration of oxygen in the exhaust gases, allowing the engine control unit (ECU) to adjust the air-fuel mixture for optimal combustion efficiency. This helps in improving fuel economy and reducing emissions.

          How do I know if my Air / Fuel Ratio Sensor needs replacement?

          Common symptoms indicating that the oxygen sensor may need replacement include poor fuel economy, check engine light illumination, rough engine idle, and increased emissions. If you experience any of these issues, it may be time to check your oxygen sensor.

          Can I install the Bosch 17028 myself?

          Yes, the installation of the Bosch 17028 Air / Fuel Ratio Sensor can be a DIY task for those with basic automotive knowledge. Ensure you follow proper safety precautions and consult your vehicle's service manual for detailed instructions.

          What are the symptoms of a faulty Air / Fuel Ratio Sensor?

          Symptoms of a failing oxygen sensor can include a decrease in fuel efficiency, rough idle, and increased emissions. Common diagnostic trouble codes associated with this component include P0130, P0131, P0132, P0133, P0134, P0135, P0141, and P0142. If you see these DTCs, it may indicate a failing sensor.

          Why should I choose Bosch for my Air / Fuel Ratio Sensor needs?

          Bosch is a trusted name in automotive components, known for quality and reliability. Order Bosch 17028 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.

            • eEuroparts SKU
              236535
            • Weight
              0.3285 lbs
            • Dimensions (L x W x H)
              2.2047 x 1.9685 x 5.8268 in
            • Barcode
              00028851170284
            • Manufacturer Part #
              17028
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            17028
          • Part Type
            Air / Fuel Ratio Sensor
          • OE Part Numbers
            11787535269
          • Features
            Automotive Color / Finish : Steel
            Automotive Item Weight (lbs) : 0.277782 lb
            Connector Gender : Male
            Connector Shape : Oblong
            Grade Type : Regular
            Heated : Yes
            Hex Size (Oxygen Sensor) : 22 mm
            Housing Material : Metal
            Length (Sealing Surface To End Of Connector) : 25 in
            Mounting Bracket Included : No
            Mounting Type : Threaded
            Overall Length : 26.2 in
            Oxygen Sensor Type : Wide band
            Prop 65 Warning Label Required? : No
            Sensor Type : Heated
            Terminal Gender : Male
            Terminal Quantity : 6
            Terminal Type : Blade
            Thread Diameter : 18
            Thread Size : 18
            Universal Or Specific Fit : Specific
            Wire Quantity : 5
            Wiring Harness Included : Yes
            Wiring Harness Length : 22.8346456692913
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2006BMW750LiBase (4.8 V8 GAS)Position: Upstream Left, Notes: To 05/2006
          2006BMW750iBase (4.8 V8 GAS)Position: Upstream Right, Notes: To 05/2006
          2006BMW550iBase (4.8 V8 GAS)Position: Upstream Left, Transmission Control: Automatic, Notes: To 05/2006
          2006BMW650iBase (4.8 V8 GAS)Position: Upstream Left, Transmission Control: Automatic, Notes: To 05/2006
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          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.

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