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          Bosch 0261231188 - Ignition Knock (Detonation) Sensor

          MPN: 0261231188
          The Bosch 0261231188 Ignition Knock Sensor enhances your Mercedes-Benz engine's performance by detecting knock and optimizing ignition timing. Built for durability and easy installation.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $12.84
          In stock

          Product Overview

          The Bosch Ignition Knock Sensor, part number 0261231188, is a critical component designed to optimize engine performance in Mercedes-Benz vehicles. This high-quality sensor accurately detects engine knock or detonation, relaying essential data to the engine control module for precise ignition timing adjustments. With Bosch's reputation for reliability and OE-level fitment, this sensor ensures your engine operates smoothly and efficiently, preventing potential damage and improving fuel economy. Choose Bosch 0261231188 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 0261231188 is equivalent to or replaces the following part numbers: 0031538928, 0041534628, 0041539028, 0061533628, 594623.

          Vehicle Compatibility

          • Mercedes-Benz G65 AMG 6.0 V12 (2016–2018)
          • Mercedes-Benz S65 AMG 6.0 V12 (2016–2018)
          • Mercedes-Benz SL65 AMG 6.0 V12 (2016–2018)
          • Mercedes-Benz S600 6.0 V12 (2016–2018)
          • Mercedes-Benz SLS AMG 6.3 V8 (2015–2016)
          • Mercedes-Benz C63 AMG 6.3 V8 (2012–2013)
          • Mercedes-Benz GLK350 3.5 V6 (2012–2014)
          • Mercedes-Benz ML350 3.5 V6 (2006–2009)
          • Mercedes-Benz E350 3.5 V6 (2006–2010)
          • Mercedes-Benz C300 3.0 V6 (2008–2012)

          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 0261231188 Ignition Knock Sensor do?

          The Bosch Knock Sensor detects engine knock or detonation and transmits signals to the engine control module, enabling optimal ignition timing adjustments for improved performance and efficiency.

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

          Common symptoms indicating that the knock sensor may need replacement include engine knocking or pinging noises, reduced engine performance, poor fuel economy, and the illumination of the engine control warning light. If you experience any of these issues, consider inspecting your knock sensor.

          Can I install the Bosch 0261231188 myself?

          Yes, the installation of the Bosch Ignition Knock Sensor is straightforward and can be performed by DIY enthusiasts with basic tools. However, it is essential to follow proper procedures to ensure optimal performance.

          What are the symptoms of a faulty Ignition Knock Sensor?

          Symptoms of a faulty knock sensor include engine knocking sounds, decreased engine performance, and poor fuel efficiency. If you see DTCs such as P0325, P0326, P0327, it may indicate a failing Ignition Knock Sensor.

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

          Bosch is a trusted name in automotive components, known for its quality and reliability. Order Bosch 0261231188 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
              244503
            • Weight
              0.1279 lbs
            • Dimensions (L x W x H)
              4.0157 x 1.5354 x 4.0551 in
            • Barcode
              04047024213456
            • Manufacturer Part #
              0261231188
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            0261231188
          • Part Type
            Ignition Knock (Detonation) Sensor
          • OE Part Numbers
            0041539028, 0041534628, 0031538928, 0061533628
          • Cross Reference Numbers
            594623
          • 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 : No
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          1993Mercedes-Benz300CEBase (3.2 L6 GAS)Notes: From Engine # ..086324
          1993Mercedes-Benz300EBase (3.2 L6 GAS)Notes: From Engine # ..086324
          1996Mercedes-BenzC220Base (2.2 L4 GAS)
          1996Mercedes-BenzC280Base (2.8 L6 GAS)
          1996Mercedes-BenzC36 AMGBase (3.6 L6 GAS)
          1996Mercedes-BenzS320LWB (3.2 L6 GAS)
          1996Mercedes-BenzS320SWB (3.2 L6 GAS)
          1996Mercedes-BenzSL320Base (3.2 L6 GAS)
          1996Mercedes-BenzE320Base (3.2 L6 GAS)
          1997Mercedes-BenzC230Base (2.3 L4 GAS)
          1997Mercedes-BenzC280Base (2.8 L6 GAS)
          1997Mercedes-BenzC36 AMGBase (3.6 L6 GAS)
          1997Mercedes-BenzS320LWB (3.2 L6 GAS)
          1997Mercedes-BenzS320SWB (3.2 L6 GAS)
          1997Mercedes-BenzSL320Base (3.2 L6 GAS)
          1997Mercedes-BenzE320Base (3.2 L6 GAS)
          1998Mercedes-BenzC230Base (2.3 L4 GAS)
          1998Mercedes-BenzS320LWB (3.2 L6 GAS)
          1998Mercedes-BenzS320SWB (3.2 L6 GAS)
          1998Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          1999Mercedes-BenzC230Kompressor (2.3 L4 GAS)
          1999Mercedes-BenzS320LWB (3.2 L6 GAS)
          1999Mercedes-BenzS320SWB (3.2 L6 GAS)
          1999Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          2000Mercedes-BenzC230Kompressor (2.3 L4 GAS)
          2000Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          1995Mercedes-BenzC36 AMGBase (3.6 L6 GAS)
          2001Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          2002Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          2003Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          2004Mercedes-BenzSLK230Kompressor (2.3 L4 GAS)
          2005Mercedes-BenzSLK350Base (3.5 V6 GAS)
          2006Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2006Mercedes-BenzE350Base (3.5 V6 GAS)
          2006Mercedes-BenzML3504Matic (3.5 V6 GAS)
          2006Mercedes-BenzC230Sport (2.5 V6 GAS)
          2006Mercedes-BenzC2804Matic (3.0 V6 GAS)
          2006Mercedes-BenzC280Luxury (3.0 V6 GAS)
          2006Mercedes-BenzC3504Matic (3.5 V6 GAS)
          2006Mercedes-BenzC350Luxury (3.5 V6 GAS)
          2006Mercedes-BenzC350Sport (3.5 V6 GAS)
          2006Mercedes-BenzCLK350Base (3.5 V6 GAS)
          2006Mercedes-BenzR3504Matic (3.5 V6 GAS)
          2006Mercedes-BenzSLK280Base (3.0 V6 GAS)
          2006Mercedes-BenzSLK350Base (3.5 V6 GAS)
          2007Mercedes-BenzS5504Matic (5.5 V8 GAS)
          2007Mercedes-BenzS550Base (5.5 V8 GAS)
          2007Mercedes-BenzSL550Base (5.5 V8 GAS)
          2007Mercedes-BenzCLK63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzE63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzML63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzR63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzCLK350Base (3.5 V6 GAS)
          2007Mercedes-BenzCLK550Base (5.5 V8 GAS)
          2007Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2007Mercedes-BenzGL450Base (4.7 V8 GAS)
          2007Mercedes-BenzC2804Matic (3.0 V6 GAS)
          2007Mercedes-BenzC280Luxury (3.0 V6 GAS)
          2007Mercedes-BenzC3504Matic (3.5 V6 GAS)
          2007Mercedes-BenzC350Luxury (3.5 V6 GAS)
          2007Mercedes-BenzC350Sport (3.5 V6 GAS)
          2007Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2007Mercedes-BenzE350Base (3.5 V6 GAS)
          2007Mercedes-BenzE5504Matic (5.5 V8 GAS)
          2007Mercedes-BenzE550Base (5.5 V8 GAS)
          2007Mercedes-BenzML3504Matic (3.5 V6 GAS)
          2007Mercedes-BenzR3504Matic (3.5 V6 GAS)
          2007Mercedes-BenzSLK280Base (3.0 V6 GAS)
          2007Mercedes-BenzSLK350Base (3.5 V6 GAS)
          2007Mercedes-BenzC230Sport (2.5 V6 GAS)
          2007Mercedes-BenzCL550Base (5.5 V8 GAS)
          2008Mercedes-BenzC3004Matic Luxury (3.0 V6 GAS)
          2008Mercedes-BenzC3004Matic Sport (3.0 V6 GAS)
          2008Mercedes-BenzC300Sport (3.0 V6 GAS)
          2008Mercedes-BenzC350Sport (3.5 V6 GAS)Engine: 272.961
          2008Mercedes-BenzCL550Base (5.5 V8 GAS)
          2008Mercedes-BenzCL63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzCLK350Base (3.5 V6 GAS)
          2008Mercedes-BenzCLK550Base (5.5 V8 GAS)
          2008Mercedes-BenzCLK63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzCLK63 AMGBlack Series (6.3 V8 GAS)
          2008Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2008Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2008Mercedes-BenzE350Base (3.5 V6 GAS)
          2008Mercedes-BenzE5504Matic (5.5 V8 GAS)
          2008Mercedes-BenzE550Base (5.5 V8 GAS)
          2008Mercedes-BenzE63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzS5504Matic (5.5 V8 GAS)
          2008Mercedes-BenzS550Base (5.5 V8 GAS)
          2008Mercedes-BenzS63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzSL550Base (5.5 V8 GAS)
          2008Mercedes-BenzSLK280Base (3.0 V6 GAS)
          2008Mercedes-BenzSLK350Base (3.5 V6 GAS)
          2008Mercedes-BenzML3504Matic (3.5 V6 GAS)
          2008Mercedes-BenzML550Base (5.5 V8 GAS)
          2008Mercedes-BenzML63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzR3504Matic (3.5 V6 GAS)
          2008Mercedes-BenzR350Base (3.5 V6 GAS)
          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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