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Bosch 0261231038 - Ignition Knock (Detonation) Sensor
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.
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- 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
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- 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.
- BrandBosch
- ManufacturerBosch
- MPN0261231038
- Part TypeIgnition Knock (Detonation) Sensor
- OE Part Numbers054905377A
- FeaturesConnector 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 TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1985 | Volkswagen | Golf | Base (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1985 | Volkswagen | Golf | GTI (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1985 | Volkswagen | Jetta | Base (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1985 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1985 | Volkswagen | Jetta | GLI (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1986 | Audi | Coupe | GT (2.2 L5 GAS) | |
| 1986 | Volkswagen | Golf | Base (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1986 | Volkswagen | Golf | GTI (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1986 | Volkswagen | Jetta | Base (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1986 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1986 | Volkswagen | Jetta | GLI (1.8 L4 GAS) | VIN: B, Notes: Actual OE Part |
| 1987 | Audi | Coupe | GT (2.3 L5 GAS) | |
| 1987 | Audi | Coupe | GT (2.2 L5 GAS) | |
| 1987 | Volkswagen | Golf | GL (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Golf | GT (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Golf | GTI (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Golf | GTI 16-Valve (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Jetta | Base (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Jetta | GLI (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Jetta | GLI 16-Valve (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Jetta | Wolfsburg Edition (1.8 L4 GAS) | VIN: B, VIN: C, Notes: Actual OE Part |
| 1987 | Volkswagen | Scirocco | 16-Valve (1.8 L4 GAS) | Engine: PL, Notes: Actual OE Part |
| 1987 | Volkswagen | Scirocco | Base (1.8 L4 GAS) | Engine: PL, Notes: Actual OE Part |
| 1988 | Audi | 80 | Base (2.0 L4 GAS) | |
| 1988 | Audi | 80 Quattro | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1988 | Audi | 90 | Base (2.3 L5 GAS) | |
| 1988 | Audi | 90 | Base (2.0 L4 GAS) | |
| 1988 | Volkswagen | Golf | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1988 | Volkswagen | Golf | GL (1.8 L4 GAS) | Notes: Actual OE Part |
| 1988 | Volkswagen | Golf | GT (1.8 L4 GAS) | Notes: Actual OE Part |
| 1988 | Volkswagen | Golf | GTI 16-Valve (1.8 L4 GAS) | Notes: Actual OE Part |
| 1988 | Volkswagen | Jetta | Base (1.8 L4 GAS) | VIN: B, VIN: A, Notes: Actual OE Part |
| 1988 | Volkswagen | Jetta | Carat (1.8 L4 GAS) | VIN: B, VIN: A, Notes: Actual OE Part |
| 1988 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: B, VIN: A, Notes: Actual OE Part |
| 1988 | Volkswagen | Jetta | GLI 16-Valve (1.8 L4 GAS) | VIN: B, VIN: A, Notes: Actual OE Part |
| 1988 | Volkswagen | Scirocco | 16-Valve (1.8 L4 GAS) | Engine: PL, Notes: Actual OE Part |
| 1989 | Audi | 100 | Base (2.3 L5 GAS) | |
| 1989 | Audi | 100 | E (2.3 L5 GAS) | |
| 1989 | Audi | 100 Quattro | Base (2.3 L5 GAS) | |
| 1989 | Audi | 80 | Base (2.0 L4 GAS) | |
| 1989 | Audi | 80 Quattro | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1989 | Volkswagen | Golf | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Golf | GL (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Golf | GTI 16-Valve (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Jetta | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Jetta | Carat (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Jetta | GL (1.8 L4 GAS) | Notes: Actual OE Part |
| 1989 | Volkswagen | Jetta | GLI 16-Valve (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Audi | 100 | Base (2.3 L5 GAS) | |
| 1990 | Audi | 100 Quattro | Base (2.3 L5 GAS) | |
| 1990 | Audi | 80 | Base (2.0 L4 GAS) | |
| 1990 | Audi | 80 Quattro | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1990 | Audi | 90 | Base (2.3 L5 GAS) | |
| 1990 | Volkswagen | Cabriolet | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Cabriolet | Bestseller (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Cabriolet | Boutique (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Corrado | G60 (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Golf | GL (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Golf | GTI 8-Valve (1.8 L4 GAS) | Notes: Actual OE Part |
| 1990 | Volkswagen | Jetta | Carat (1.8 L4 GAS) | Notes: Mexico Built, Actual OE Part |
| 1990 | Volkswagen | Jetta | GL (1.8 L4 GAS) | Notes: Mexico Built, Actual OE Part |
| 1990 | Volkswagen | Passat | GL (2.0 L4 GAS) | Notes: Actual OE Part |
| 1991 | Audi | 100 | Base (2.3 L5 GAS) | |
| 1991 | Audi | 100 Quattro | Base (2.3 L5 GAS) | |
| 1991 | Audi | 80 | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1991 | Audi | 80 Quattro | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1991 | Audi | 90 | Base (2.3 L5 GAS) | |
| 1991 | Volkswagen | Cabriolet | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1991 | Volkswagen | Cabriolet | Carat (1.8 L4 GAS) | Notes: Actual OE Part |
| 1991 | Volkswagen | Cabriolet | Etienne Aigner (1.8 L4 GAS) | Notes: Actual OE Part |
| 1991 | Volkswagen | Corrado | G60 (1.8 L4 GAS) | Notes: Actual OE Part |
| 1991 | Volkswagen | Golf | GL (1.8 L4 GAS) | Notes: Color Code Green, Actual OE Part |
| 1991 | Volkswagen | Golf | GTI 8-Valve (1.8 L4 GAS) | Notes: Color Code Green, Actual OE Part |
| 1991 | Volkswagen | Jetta | Carat (1.8 L4 GAS) | VIN: A, VIN: K, VIN: B, Notes: Actual OE Part, Mexico Built, Notes: Mexico Built, Actual OE Part, Engine: RV |
| 1991 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: A, VIN: K, VIN: B, Notes: Actual OE Part, Mexico Built, Notes: Mexico Built, Actual OE Part, Engine: RV |
| 1991 | Volkswagen | Passat | GL (2.0 L4 GAS) | Notes: Actual OE Part |
| 1992 | Audi | 100 | Base (2.8 V6 GAS) | Notes: Color Code Green |
| 1992 | Audi | 100 | CS (2.8 V6 GAS) | Notes: Color Code Green |
| 1992 | Audi | 100 | S (2.8 V6 GAS) | Notes: Color Code Green |
| 1992 | Audi | 100 Quattro | CS (2.8 V6 GAS) | Notes: Color Code Green |
| 1992 | Audi | 80 Quattro | Base (2.3 L5 GAS) | Notes: Color Code Green |
| 1992 | Audi | S4 | Base (2.2 L5 GAS) | Notes: Color Code Green |
| 1992 | Volkswagen | Cabriolet | Base (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Cabriolet | Carat (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Cabriolet | Classic (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Cabriolet | Wolfsburg Edition (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Corrado | G60 (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Golf | GL (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Golf | GTI 8-Valve (1.8 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Jetta | Carat (1.8 L4 GAS) | VIN: K, VIN: A, Notes: Mexico Built, Actual OE Part |
| 1992 | Volkswagen | Jetta | GL (1.8 L4 GAS) | VIN: K, VIN: A, Notes: Mexico Built, Actual OE Part |
| 1992 | Volkswagen | Passat | CL (2.0 L4 GAS) | Notes: Actual OE Part |
| 1992 | Volkswagen | Passat | GL (2.0 L4 GAS) | Notes: Actual OE Part |
| 1993 | Audi | 100 | Base (2.8 V6 GAS) | Notes: Color Code Green |
| 1993 | Audi | 100 | CS (2.8 V6 GAS) | Notes: Color Code Green |
| 1993 | Audi | 100 | S (2.8 V6 GAS) | Notes: Color Code Green |
| 1993 | Audi | 100 Quattro | CS (2.8 V6 GAS) | Notes: Color Code Green |
| 1993 | Audi | 90 | CS (2.8 V6 GAS) | Notes: Color Code Green |
| 1993 | Audi | 90 | S (2.8 V6 GAS) | Notes: Color Code Green |
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.
















