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          Genuine VW/Audi 4M1820021C - HVAC Blower Motor Assembly

          MPN: 4M1820021C
          The Genuine VW/Audi 4M1820021C HVAC Blower Motor Assembly circulates air for optimal cabin comfort. Designed for seamless compatibility and long-lasting durability.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $327.81
          Out of stock

          Genuine VW/Audi HVAC Blower Motor Assembly 4M1820021C - For Audi Vehicles

          Manufacturer Part Number: 4M1820021C

          Product Overview

          The Genuine VW/Audi HVAC Blower Motor Assembly is a crucial component for your Audi's heating and cooling system. Engineered to OEM standards, this premium-grade assembly ensures reliable performance and long-lasting durability, maintaining optimal efficiency for your vehicle's HVAC system. Designed with precision, this blower motor assembly is made from high-quality materials, providing resistance against daily wear and extreme weather conditions.

          With its seamless compatibility to part number 4M1820021B, upgrading your Audi's older or damaged blower motor is straightforward and hassle-free. This assembly guarantees smooth and quiet operation, eliminating unwanted noise and vibrations, allowing you to enjoy a comfortable driving experience. Whether you're a professional mechanic or a DIY enthusiast, the Genuine VW/Audi HVAC Blower Motor Assembly is easy to install, making it an excellent investment for maintaining your Audi's heating and air conditioning system.

          Cross Reference Numbers

          • Audi: 4M1820021B

          Vehicle Compatibility

          This part fits some of the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility.

          • Audi S7 Sportback / 2.9V6, 2021-2022
          • Audi Q5 PHEV / 2.0L4, 2021-2022
          • Audi A6 allroad / 3.0V6, 2021-2022
          • Audi RS6 Avant / 4.0V8, 2021-2022
          • Audi SQ5 Sportback / 3.0V6, 2021-2022
          • Audi Q7 / 2.0L4, 2021-2022
          • Audi Q8 / 3.0V6, 2021-2022
          • Audi A7 Sportback / 3.0V6, 2021-2022
          • Audi e-tron Quattro / --- , 2021-2022
          • Audi S5 Sportback / 3.0V6, 2021-2022

          Why Shop at eEuroparts.com?

          Since 2000, eEuroparts.com has been a trusted destination for European car owners looking for reliable parts at great prices. Here's why customers choose us:

          • Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
          • 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 this part do?

          The HVAC blower motor assembly is responsible for circulating air through your vehicle's heating and air conditioning system, ensuring a comfortable climate within the cabin.

          What vehicles is this part compatible with?

          This part is compatible with various Audi models including the S7 Sportback, Q5 PHEV, A6 allroad, RS6 Avant, SQ5 Sportback, Q7, Q8, A7 Sportback, e-tron Quattro, and S5 Sportback. For exact compatibility, please use the vehicle selector tool above.

          What are common signs this part may need replacement?

          Common symptoms indicating the need for a blower motor replacement include insufficient airflow from the vents, unusual noises when the HVAC system is operating, and failure of the HVAC system to produce warm or cool air.

            • eEuroparts SKU
              3393480
            • Weight
              3.3 lbs
            • Manufacturer Part #
              4M1820021C
          • Brand
            Genuine VW/Audi
          • Manufacturer
            Genuine VW/Audi
          • MPN
            4M1820021C
          • Part Type
            HVAC Blower Motor Assembly
          • OE Part Numbers
            4M1820021B, 4M1-820-021-B, 4M1-820-021, 4M1820021, 4M1-820-021-A, 4M1820021A
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2022AudiQ5 SportbackPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ5 SportbackPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA5 SportbackPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA5 QuattroPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA5 QuattroPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA5 QuattroPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA4 QuattroPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiA4 QuattroPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ7Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ7Premium Plus (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ7Premium (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2022AudiQ5Prestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 QuattroPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 QuattroPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA4Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ5Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 SportbackPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 SportbackPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA5 SportbackPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA4 allroadPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ7Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ7Premium Plus (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ7Premium (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiQ7Prestige (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2018AudiA4 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiQ7Premium (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiQ7Premium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 QuattroPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 QuattroPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 QuattroPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 SportbackPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 SportbackPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA5 SportbackPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiQ5Premium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiQ5Prestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiQ5 SportbackPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2023AudiA4 QuattroPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 QuattroPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 QuattroUltra sport (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 QuattroPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 allroadPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4 allroadPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA4Prestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA5 QuattroPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA5 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA5 SportbackPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA5 SportbackPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiA5 SportbackPrestige (2.0 L4 GAS)
          2020AudiQ5Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiQ5Titanium Prestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiQ5Prestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiQ7Premium (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2020AudiQ7Prestige (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ7Premium Plus (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ7Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ7Premium (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ7Prestige (3.0 V6 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA5 QuattroPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA5 QuattroPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA5 QuattroPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ5Premium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ5Premium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA4 QuattroPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA4 QuattroPrestige (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiA5 SportbackPremium (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2021AudiQ5 SportbackPremium Plus (2.0 L4 MHEV)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4 QuattroUltra sport (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4 QuattroPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ5Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA5 SportbackPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA5 SportbackPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4Titanium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA5 QuattroPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA5 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA5 QuattroPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ7Premium Plus (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ7Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ7Premium (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiQ7Prestige (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4 allroadPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2019AudiA4 allroadPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiQ7Prestige (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiQ7Premium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiQ7Premium Plus (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiQ7Premium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiQ7Premium (3.0 V6 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiA4Prestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiA4 allroadPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiA4 allroadPremium Plus (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiA4 allroadPremium (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          2017AudiA4 QuattroPrestige (2.0 L4 GAS)Notes: Includes Impeller & HVAC Blower Motor Control Module
          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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