• Your cart is empty
      0
      items

      Subtotal:$0.00

    :

    Clear
    Clear

          Arnott Industries C-2278 - Air Spring to Coil Spring Conversion Kit (Front and Rear)

          MPN: C-2278
          The Arnott Industries C-2278 Conversion Kit replaces air suspension with durable coil springs for enhanced comfort and reliability in select Mercedes-Benz models.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $1647.95
          Out of stock

          Product Overview

          Upgrade your Mercedes-Benz with the Arnott Industries C-2278 Air Spring to Coil Spring Conversion Kit. This kit effectively converts your vehicle's front and rear air suspension to a conventional coil spring suspension system, providing improved ride quality and reliability. The struts come pre-assembled, ensuring a straightforward installation process. Additionally, the kit includes an Electronic Bypass Module (EBM) to disable the dashboard suspension warning light, allowing for a seamless experience. Engineered to OEM standards, this conversion kit features custom valved struts that enhance driving comfort, eliminating common issues associated with air suspension systems. Choose Arnott Industries C-2278 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Arnott Industries C-2278 is equivalent to or replaces the following part numbers: N/A

          Vehicle Compatibility

          • Mercedes-Benz CLS550 (2009–2011)
          • Mercedes-Benz CLS63 AMG (2009–2011)
          • Mercedes-Benz E320 (2006–2009)
          • Mercedes-Benz E350 (2006–2009)
          • Mercedes-Benz E500 (2005–2006)
          • Mercedes-Benz E550 (2006–2009)
          • Mercedes-Benz E63 AMG (2006–2007)
          • Mercedes-Benz CLS500 (2006)
          • Mercedes-Benz CLS55 AMG (2006)
          • Mercedes-Benz E55 AMG (2005–2007)

          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 Arnott Industries C-2278 Air Spring to Coil Spring Conversion Kit do?

          The Arnott C-2278 Coil Spring Conversion Kit replaces your vehicle's air suspension system with a reliable coil spring suspension, enhancing ride quality and eliminating common air suspension issues.

          How do I know if my Air Spring to Coil Spring Conversion Kit needs replacement?

          Symptoms of air suspension failure may include a sagging vehicle, abnormal ride height, a bouncing or rough ride, and the dashboard suspension warning light illuminating.

          Can I install the Arnott Industries C-2278 myself?

          Yes, the Arnott C-2278 kit is designed for straightforward installation. However, proper tools and precautions should be taken to ensure safety during the process.

          What are the symptoms of a faulty Air Spring to Coil Spring Conversion Kit?

          Common symptoms include a sagging vehicle stance, unstable handling, and the dashboard suspension warning light. If you see DTCs such as C10F0, C10F1, and C10F2, it may indicate a failing air suspension component.

          Why should I choose Arnott Industries for my Air Spring to Coil Spring Conversion Kit needs?

          Arnott Industries is known for premium automotive parts that meet OEM standards. Order Arnott Industries C-2278 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
              210279
            • Weight
              45.999 lbs
            • Dimensions (L x W x H)
              31 x 17 x 9.5 in
            • Barcode
              00815710012720
            • Manufacturer Part #
              C-2278
          • Brand
            Arnott Industries
          • Manufacturer
            Arnott Industries
          • MPN
            C-2278
          • Part Type
            Air Spring to Coil Spring Conversion Kit
          • Position
            Front and Rear
          • OE Part Numbers
            21-6807, 216807, 21-6808, 216808
          • Cross Reference Numbers
            C2278
          • Features
            California Proposition 65 : N/A
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2006Mercedes-BenzE55 AMGBase (5.5 V8 GAS)
          2006Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2006Mercedes-BenzE350Base (3.5 V6 GAS)
          2006Mercedes-BenzCLS55 AMGBase (5.5 V8 GAS)
          2006Mercedes-BenzE5004Matic (5.0 V8 GAS)
          2006Mercedes-BenzE500Base (5.0 V8 GAS)
          2006Mercedes-BenzCLS500Base (5.0 V8 GAS)
          2006Mercedes-BenzE320CDI (3.2 L6 DIESEL)
          2008Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2008Mercedes-BenzE350Base (3.5 V6 GAS)
          2008Mercedes-BenzE320Bluetec (3.0 V6 DIESEL)
          2008Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2008Mercedes-BenzE63 AMGBase (6.3 V8 GAS)
          2008Mercedes-BenzE5504Matic (5.5 V8 GAS)
          2008Mercedes-BenzE550Base (5.5 V8 GAS)
          2009Mercedes-BenzE320Bluetec (3.0 V6 DIESEL)
          2009Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2009Mercedes-BenzE63 AMGBase (6.3 V8 GAS)
          2009Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2009Mercedes-BenzE5504Matic (5.5 V8 GAS)
          2009Mercedes-BenzE550Base (5.5 V8 GAS)
          2009Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2009Mercedes-BenzE350Base (3.5 V6 GAS)
          2007Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2007Mercedes-BenzE63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzE5504Matic (5.5 V8 GAS)
          2007Mercedes-BenzE550Base (5.5 V8 GAS)
          2007Mercedes-BenzE320Bluetec (3.0 V6 DIESEL)
          2007Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2007Mercedes-BenzE3504Matic (3.5 V6 GAS)
          2007Mercedes-BenzE350Base (3.5 V6 GAS)
          2003Mercedes-BenzE3204Matic (3.2 V6 GAS)
          2003Mercedes-BenzE320Base (3.2 V6 GAS)
          2003Mercedes-BenzE55 AMGBase (5.5 V8 GAS)
          2003Mercedes-BenzE500Base (5.0 V8 GAS)
          2005Mercedes-BenzE3204Matic (3.2 V6 GAS)
          2005Mercedes-BenzE320Base (3.2 V6 GAS)
          2005Mercedes-BenzE320CDI (3.2 L6 DIESEL)
          2005Mercedes-BenzE55 AMGBase (5.5 V8 GAS)
          2005Mercedes-BenzE5004Matic (5.0 V8 GAS)
          2005Mercedes-BenzE500Base (5.0 V8 GAS)
          2011Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2011Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2010Mercedes-BenzCLS550Base (5.5 V8 GAS)
          2010Mercedes-BenzCLS63 AMGBase (6.3 V8 GAS)
          2004Mercedes-BenzE5004Matic (5.0 V8 GAS)
          2004Mercedes-BenzE500Base (5.0 V8 GAS)
          2004Mercedes-BenzE55 AMGBase (5.5 V8 GAS)
          2004Mercedes-BenzE3204Matic (3.2 V6 GAS)
          2004Mercedes-BenzE320Base (3.2 V6 GAS)
          Customer reviews
          Please sign in to add review
          There are no comments yet. Be the first to leave a comment

          We accept the following payment methods:

          Accepted payment methods

          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.

          Product questions

          No questions yet. Be the first to ask the question!