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          Genuine Mercedes-Benz 09990509042A17 - Combination Switch

          MPN: 09990509042A17
          The Genuine Mercedes-Benz 09990509042A17 Combination Switch ensures reliable cruise control operation for your vehicle. Designed for easy installation and built to OEM standards.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $166.25
          Out of stock

          Product Overview

          The Genuine Mercedes-Benz Combination Switch, part number 09990509042A17, is engineered to provide superior performance and reliability for your Mercedes-Benz vehicle. This premium-grade switch is designed to meet OEM standards, ensuring that you receive a high-quality replacement part that enhances your driving experience. Crafted from durable materials, this switch is built to withstand the rigors of everyday use while maintaining its functionality. It features intuitive controls for your cruise control system, allowing for a smooth and hassle-free driving experience. Choose Genuine Mercedes-Benz 09990509042A17 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine Mercedes-Benz 09990509042A17 is equivalent to or replaces the following part numbers: 09990509042A17

          Vehicle Compatibility

          • Mercedes-Benz GLE53 AMG 3.0L6 (2021–2022)
          • Mercedes-Benz GLE63 AMG S 4.0V8 (2021)
          • Mercedes-Benz GLB35 AMG 2.0L4 (2022)
          • Mercedes-Benz GLA35 AMG 2.0L4 (2022)
          • Mercedes-Benz GLA250 2.0L4 (2021–2022)
          • Mercedes-Benz GLA45 AMG 2.0L4 (2022)
          • Mercedes-Benz C300 2.0L4 (2019–2021)
          • Mercedes-Benz C43 AMG 3.0V6 (2019–2021)
          • Mercedes-Benz C63 AMG S 4.0V8 (2019–2021)
          • Mercedes-Benz GLC43 AMG 3.0V6 (2021)

          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 Genuine Mercedes-Benz 09990509042A17 Combination Switch do?

          The combination switch allows the driver to set and maintain a specific speed without having to keep their foot on the accelerator. This component is essential for a comfortable driving experience, especially on long journeys.

          How do I know if my Combination Switch needs replacement?

          Symptoms indicating the need for replacement may include an inability to set or maintain cruise control speed, unresponsive or erratic cruise control behavior, and warning lights on the dashboard related to cruise control.

          Can I install the Genuine Mercedes-Benz 09990509042A17 myself?

          Yes, the installation of this combination switch is straightforward and can be done by DIY enthusiasts. However, it is essential to follow proper procedures and safety precautions during installation.

          What are the symptoms of a faulty Combination Switch?

          Common symptoms of a faulty combination switch may include difficulty in setting cruise control, erratic functioning of the cruise control system, and dashboard warning lights related to the cruise control feature. If you see DTCs such as C0100, C0110, and C0120, it may indicate a failing combination switch.

          Why should I choose Genuine Mercedes-Benz for my Combination Switch needs?

          Genuine Mercedes-Benz parts are synonymous with quality and reliability. Order Genuine Mercedes-Benz 09990509042A17 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
              2372999
            • Weight
              0.7 lbs
            • Dimensions (L x W x H)
              12.4244 x 4.164 x 6.6476 in
            • Manufacturer Part #
              09990509042A17
          • Brand
            Genuine Mercedes-Benz
          • Manufacturer
            Genuine Mercedes-Benz
          • MPN
            09990509042A17
          • Part Type
            Combination Switch
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2022Mercedes-BenzGLA2504Matic (2.0 L4 GAS)Notes: W/SPORT WHEEL, w/o adaptive cruise
          2022Mercedes-BenzGLA250Base (2.0 L4 GAS)Notes: W/SPORT WHEEL, w/o adaptive cruise
          2022Mercedes-BenzGLC43 AMG4Matic (3.0 V6 GAS)Notes: 2020-21 W/SPORT WHEEL, w/o adaptive cruise GLC43, GLC63, Notes: W/AMG PERF WHEEL, w/o adaptive cruise
          2022Mercedes-BenzGLB35 AMG4Matic (2.0 L4 GAS)Notes: AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2022Mercedes-BenzGLA45 AMG4Matic (2.0 L4 GAS)Notes: W/AMG PERFORMANCE WHEEL W/O AMG DRIVE UNIT, w/o adaptive cruise, Notes: W/SPORT WHEEL, w/o adaptive cruise
          2022Mercedes-BenzGLA35 AMG4Matic (2.0 L4 GAS)Notes: W/SPORT WHEEL, w/o adaptive cruise, Notes: W/AMG PERFORMANCE WHEEL W/O AMG DRIVE UNIT, w/o adaptive cruise
          2022Mercedes-BenzGLE53 AMG4Matic (3.0 L6 MHEV)Notes: w/o adaptive cruise, Notes: AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2022Mercedes-BenzC43 AMG4Matic (3.0 V6 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise
          2019Mercedes-BenzC63 AMGBase (4.0 V8 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2019Mercedes-BenzC63 AMG SBase (4.0 V8 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2019Mercedes-BenzC43 AMG4Matic (3.0 V6 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2019Mercedes-BenzC3004Matic (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2019Mercedes-BenzC300Base (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2020Mercedes-BenzC3004Matic (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2020Mercedes-BenzC300Base (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2020Mercedes-BenzC43 AMG4Matic (3.0 V6 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2020Mercedes-BenzC63 AMGBase (4.0 V8 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2020Mercedes-BenzC63 AMG SBase (4.0 V8 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzC43 AMG4Matic (3.0 V6 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzC63 AMG SBase (4.0 V8 GAS)Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise, Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzC63 AMGBase (4.0 V8 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise, Notes: 2019-22, C43, C63, C63 S w/o adaptive cruise
          2021Mercedes-BenzGLE63 AMG S4Matic (4.0 V8 MHEV)Notes: AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzGLE53 AMG4Matic (3.0 L6 MHEV)Notes: AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzC3004Matic (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
          2021Mercedes-BenzC300Base (2.0 L4 GAS)Notes: 2019-21 W/AMG PERFORMANCE WHEEL, w/o adaptive cruise
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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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