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          Bilstein 36-166640 - Coil Spring (Front)

          MPN: 36-166640
          The Bilstein 36-166640 Coil Spring provides essential support for your Mercedes-Benz, ensuring stability and comfort while absorbing road shocks. Designed for reliable performance and OEM fitment.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $61.00
          In stock

          Product Overview

          The Bilstein Coil Spring 36-166640 is engineered to provide exceptional support and performance for your Mercedes-Benz. A coil spring plays a crucial role in maintaining the vehicle's stability and comfort by absorbing shocks from uneven road surfaces while holding the vehicle's weight. With origins dating back to 1906, coil springs are integral to modern automotive suspension systems. Choose Bilstein 36-166640 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bilstein 36-166640 is equivalent to or replaces the following part numbers: 164 321 01 04, 1643210104, 164 321 02 04, 1643210204, 164 321 03 04, 1643210304, F4-FE1-G664-H0, F4FE1G664H0, FE1-G664, FE1G664, 17221, 17222, 4056869, 4056870, SP3663, 894132, 894133, 998 661, 998661, 998 662, 998662, 19315, 19316.

          Vehicle Compatibility

          • Mercedes-Benz ML350 3.5 V6 (2010–2011)
          • Mercedes-Benz ML350 Bluetec 3.0 V6 (2010–2011)
          • Mercedes-Benz ML550 5.5 V8 (2007–2011)
          • Mercedes-Benz ML320 CDI 3.0 V6 (2006–2009)
          • Mercedes-Benz ML500 5.0 V8 (2006–2007)

          This may also fits 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 Bilstein 36-166640 Coil Spring do?

          This coil spring supports the weight of the vehicle while absorbing shocks from the road, ensuring a stable and comfortable ride.

          How do I know if my Coil Spring needs replacement?

          Key signs that your coil spring may need replacement include vehicle sagging, uneven tire wear, excessive bouncing or swaying while driving, and unusual noises from the suspension when going over bumps.

          Can I install the Bilstein 36-166640 myself?

          Yes, the installation can be done as a DIY project, but it is recommended to have proper tools and follow safety precautions to ensure a successful installation.

          What are the symptoms of a faulty Coil Spring?

          Common symptoms of a faulty coil spring include vehicle sagging, excessive bouncing, and a rough ride quality. If you experience these issues, it may be time to replace your Bilstein 36-166640 coil spring.

          Why should I choose Bilstein for my Coil Spring needs?

          Bilstein is renowned for its quality and performance. Order Bilstein 36-166640 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
              10101
            • Weight
              10.05 lbs
            • Dimensions (L x W x H)
              19.7 x 5.91 x 5.91 in
            • Barcode
              00651860663678
            • Manufacturer Part #
              36-166640
          • Brand
            Bilstein
          • Manufacturer
            Bilstein
          • MPN
            36-166640
          • Part Type
            Coil Spring
          • Position
            Front
          • OE Part Numbers
            251 321 03 04, 2513210304, 164 321 02 04, 1643210204, 164 321 03 04, 1643210304, 251 321 05 04 64, 251321050464, 164 321 01 04, 1643210104, 251 321 04 04, 2513210404
          • Cross Reference Numbers
            36166640, 17221, F4-FE1-G664-H0, F4FE1G664H0, 17222, 19315, 19316, FE1-G664, FE1G664, 4056869, 998 662, 998662, 894133, 998 661, 998661, 4056870, 894132, SP3663
          • Features
            California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
            Finish : Black Powder Coat
            Series : B3 OE Replacement
            Title : Bilstein Shock Absorbers
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2006Mercedes-BenzML500Base (5.0 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2006Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2007Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2007Mercedes-BenzML500Base (5.0 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2007Mercedes-BenzML320CDI (3.0 V6 DIESEL)Front Spring: Coil, Notes: Standard Suspension Only
          2008Mercedes-BenzML320CDI (3.0 V6 DIESEL)Front Spring: Coil, Notes: Standard Suspension Only
          2008Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2008Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2009Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2009Mercedes-BenzML320Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Coil, Notes: Standard Suspension Only
          2009Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2009Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2010Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Coil, Notes: Standard Suspension Only
          2010Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2010Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2010Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2011Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Coil, Notes: Standard Suspension Only
          2011Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2011Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Coil, Notes: Standard Suspension Only
          2011Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Coil, Notes: Standard Suspension Only
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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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