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          Bosch 0261231038 - Ignition Knock (Detonation) Sensor

          MPN: 0261231038
          The Bosch 0261231038 Ignition Knock Sensor detects engine knock for optimal performance and fuel efficiency. Designed for select Volkswagen and Audi models.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $24.56
          In stock

          Product Overview

          The Bosch Ignition Knock (Detonation) Sensor part number 0261231038 is a high-quality replacement designed specifically for select Volkswagen and Audi models. This premium-grade sensor excels in detecting engine knock, enabling timely adjustments to ignition timing, which helps prevent potential engine damage. Engineered to OEM standards, this sensor offers durability and reliability, ensuring you can maintain optimal engine performance. Choose Bosch 0261231038 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 0261231038 is equivalent to or replaces the following part numbers: 054905377A.

          Vehicle Compatibility

          • Volkswagen Touareg 4.2 V8 (2003–2006)
          • Audi A6 Quattro 4.2 V8 (2003–2004)
          • Audi A8 Quattro 4.2 V8 (2003–2004)
          • Audi RS6 4.2 V8 (2003)
          • Audi S6 Avant 4.2 V8 (2003)
          • Audi S8 4.2 V8 (2003–2004)
          • Audi A4 1.8 L4 (1999–2000)
          • Audi Cabriolet 2.8 V6 (1996–1998)
          • Volkswagen Passat 1.8 L4 (1999–2000)
          • Audi 100 2.8 V6 (1992–1994)

          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 0261231038 Ignition Knock Sensor do?

          The Bosch Ignition Knock Sensor detects engine knock, also known as detonation, and communicates with the engine control unit to adjust ignition timing, thereby protecting the engine from damage and enhancing performance.

          How do I know if my Ignition Knock Sensor needs replacement?

          Common symptoms of a failing ignition knock sensor include engine knocking noises, decreased fuel efficiency, illuminated check engine light, and poor engine performance.

          Can I install the Bosch 0261231038 myself?

          Yes, the Bosch Ignition Knock Sensor can be installed by DIY enthusiasts. Ensure you follow the vehicle's repair guide and take necessary precautions for safety.

          What are the symptoms of a faulty Ignition Knock Sensor?

          Symptoms include engine knocking, reduced fuel efficiency, and potential power loss during acceleration. If you notice these issues, it may be time to replace the sensor.

          Why should I choose Bosch for my Ignition Knock Sensor needs?

          Bosch is known for its high-quality automotive components. Order Bosch 0261231038 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
              244466
            • Weight
              0.2315 lbs
            • Dimensions (L x W x H)
              4.0157 x 1.5354 x 4.0551 in
            • Barcode
              03165142867533
            • Manufacturer Part #
              0261231038
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            0261231038
          • Part Type
            Ignition Knock (Detonation) Sensor
          • OE Part Numbers
            054905377A
          • Features
            Connector Gender : Male
            Connector Quantity : 1
            Connector Shape : Rectangular
            Material : Metal - Plastic
            Mounting Type : Bolt On
            Pulley Included : No
            Solenoid Included : No
            Terminal Gender : Male
            Terminal Quantity : 2
            Terminal Type : Blade
            Wiring Harness Included : Yes
            Wiring Harness Length : 726
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          1985VolkswagenGolfBase (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1985VolkswagenGolfGTI (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1985VolkswagenJettaBase (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1985VolkswagenJettaGL (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1985VolkswagenJettaGLI (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1986AudiCoupeGT (2.2 L5 GAS)
          1986VolkswagenGolfBase (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1986VolkswagenGolfGTI (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1986VolkswagenJettaBase (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1986VolkswagenJettaGL (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1986VolkswagenJettaGLI (1.8 L4 GAS)VIN: B, Notes: Actual OE Part
          1987AudiCoupeGT (2.3 L5 GAS)
          1987AudiCoupeGT (2.2 L5 GAS)
          1987VolkswagenGolfGL (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenGolfGT (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenGolfGTI (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenGolfGTI 16-Valve (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenJettaBase (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenJettaGL (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenJettaGLI (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenJettaGLI 16-Valve (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenJettaWolfsburg Edition (1.8 L4 GAS)VIN: B, VIN: C, Notes: Actual OE Part
          1987VolkswagenScirocco16-Valve (1.8 L4 GAS)Engine: PL, Notes: Actual OE Part
          1987VolkswagenSciroccoBase (1.8 L4 GAS)Engine: PL, Notes: Actual OE Part
          1988Audi80Base (2.0 L4 GAS)
          1988Audi80 QuattroBase (2.3 L5 GAS)Notes: Color Code Green
          1988Audi90Base (2.3 L5 GAS)
          1988Audi90Base (2.0 L4 GAS)
          1988VolkswagenGolfBase (1.8 L4 GAS)Notes: Actual OE Part
          1988VolkswagenGolfGL (1.8 L4 GAS)Notes: Actual OE Part
          1988VolkswagenGolfGT (1.8 L4 GAS)Notes: Actual OE Part
          1988VolkswagenGolfGTI 16-Valve (1.8 L4 GAS)Notes: Actual OE Part
          1988VolkswagenJettaBase (1.8 L4 GAS)VIN: B, VIN: A, Notes: Actual OE Part
          1988VolkswagenJettaCarat (1.8 L4 GAS)VIN: B, VIN: A, Notes: Actual OE Part
          1988VolkswagenJettaGL (1.8 L4 GAS)VIN: B, VIN: A, Notes: Actual OE Part
          1988VolkswagenJettaGLI 16-Valve (1.8 L4 GAS)VIN: B, VIN: A, Notes: Actual OE Part
          1988VolkswagenScirocco16-Valve (1.8 L4 GAS)Engine: PL, Notes: Actual OE Part
          1989Audi100Base (2.3 L5 GAS)
          1989Audi100E (2.3 L5 GAS)
          1989Audi100 QuattroBase (2.3 L5 GAS)
          1989Audi80Base (2.0 L4 GAS)
          1989Audi80 QuattroBase (2.3 L5 GAS)Notes: Color Code Green
          1989VolkswagenGolfBase (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenGolfGL (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenGolfGTI 16-Valve (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenJettaBase (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenJettaCarat (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenJettaGL (1.8 L4 GAS)Notes: Actual OE Part
          1989VolkswagenJettaGLI 16-Valve (1.8 L4 GAS)Notes: Actual OE Part
          1990Audi100Base (2.3 L5 GAS)
          1990Audi100 QuattroBase (2.3 L5 GAS)
          1990Audi80Base (2.0 L4 GAS)
          1990Audi80 QuattroBase (2.3 L5 GAS)Notes: Color Code Green
          1990Audi90Base (2.3 L5 GAS)
          1990VolkswagenCabrioletBase (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenCabrioletBestseller (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenCabrioletBoutique (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenCorradoG60 (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenGolfGL (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenGolfGTI 8-Valve (1.8 L4 GAS)Notes: Actual OE Part
          1990VolkswagenJettaCarat (1.8 L4 GAS)Notes: Mexico Built, Actual OE Part
          1990VolkswagenJettaGL (1.8 L4 GAS)Notes: Mexico Built, Actual OE Part
          1990VolkswagenPassatGL (2.0 L4 GAS)Notes: Actual OE Part
          1991Audi100Base (2.3 L5 GAS)
          1991Audi100 QuattroBase (2.3 L5 GAS)
          1991Audi80Base (2.3 L5 GAS)Notes: Color Code Green
          1991Audi80 QuattroBase (2.3 L5 GAS)Notes: Color Code Green
          1991Audi90Base (2.3 L5 GAS)
          1991VolkswagenCabrioletBase (1.8 L4 GAS)Notes: Actual OE Part
          1991VolkswagenCabrioletCarat (1.8 L4 GAS)Notes: Actual OE Part
          1991VolkswagenCabrioletEtienne Aigner (1.8 L4 GAS)Notes: Actual OE Part
          1991VolkswagenCorradoG60 (1.8 L4 GAS)Notes: Actual OE Part
          1991VolkswagenGolfGL (1.8 L4 GAS)Notes: Color Code Green, Actual OE Part
          1991VolkswagenGolfGTI 8-Valve (1.8 L4 GAS)Notes: Color Code Green, Actual OE Part
          1991VolkswagenJettaCarat (1.8 L4 GAS)VIN: A, VIN: K, VIN: B, Notes: Actual OE Part, Mexico Built, Notes: Mexico Built, Actual OE Part, Engine: RV
          1991VolkswagenJettaGL (1.8 L4 GAS)VIN: A, VIN: K, VIN: B, Notes: Actual OE Part, Mexico Built, Notes: Mexico Built, Actual OE Part, Engine: RV
          1991VolkswagenPassatGL (2.0 L4 GAS)Notes: Actual OE Part
          1992Audi100Base (2.8 V6 GAS)Notes: Color Code Green
          1992Audi100CS (2.8 V6 GAS)Notes: Color Code Green
          1992Audi100S (2.8 V6 GAS)Notes: Color Code Green
          1992Audi100 QuattroCS (2.8 V6 GAS)Notes: Color Code Green
          1992Audi80 QuattroBase (2.3 L5 GAS)Notes: Color Code Green
          1992AudiS4Base (2.2 L5 GAS)Notes: Color Code Green
          1992VolkswagenCabrioletBase (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenCabrioletCarat (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenCabrioletClassic (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenCabrioletWolfsburg Edition (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenCorradoG60 (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenGolfGL (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenGolfGTI 8-Valve (1.8 L4 GAS)Notes: Actual OE Part
          1992VolkswagenJettaCarat (1.8 L4 GAS)VIN: K, VIN: A, Notes: Mexico Built, Actual OE Part
          1992VolkswagenJettaGL (1.8 L4 GAS)VIN: K, VIN: A, Notes: Mexico Built, Actual OE Part
          1992VolkswagenPassatCL (2.0 L4 GAS)Notes: Actual OE Part
          1992VolkswagenPassatGL (2.0 L4 GAS)Notes: Actual OE Part
          1993Audi100Base (2.8 V6 GAS)Notes: Color Code Green
          1993Audi100CS (2.8 V6 GAS)Notes: Color Code Green
          1993Audi100S (2.8 V6 GAS)Notes: Color Code Green
          1993Audi100 QuattroCS (2.8 V6 GAS)Notes: Color Code Green
          1993Audi90CS (2.8 V6 GAS)Notes: Color Code Green
          1993Audi90S (2.8 V6 GAS)Notes: Color Code Green
          There are more vehicles this part is compatible with. Check if it fits your vehicle.
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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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