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          Genuine VW/Audi 4A0905855A - Ignition Lock Assembly

          MPN: 4A0905855A
          The Genuine VW/Audi 4A0905855A Ignition Lock Assembly allows secure engine starting for select Audi models. Built to OEM standards for dependable operation.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $112.34
          Out of stock

          Product Overview

          The Genuine VW/Audi Ignition Lock Assembly 4A0905855A is a crucial component for your Audi, ensuring secure operation of the ignition system. Engineered to meet stringent OEM standards, this part guarantees optimal performance and reliability, making it a trusted choice for both professional technicians and DIY enthusiasts. Compatible with various Audi models, this ignition lock assembly ensures accurate fitment and dependable functionality. Choose Genuine VW/Audi 4A0905855A for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine VW/Audi 4A0905855A is equivalent to or replaces the following part numbers: 4A0905855, 4A0 905 855.

          Vehicle Compatibility

          • Audi 100 2.8 V6 (1992–1994)
          • Audi 100 Quattro 2.8 V6 (1992–1994)
          • Audi S4 2.2 L5 (1992–1994)

          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 VW/Audi 4A0905855A Ignition Lock Assembly do?

          The Ignition Lock Assembly is a critical component in the ignition system of your vehicle. It allows the driver to start the engine by turning the key, enabling the ignition system and activating the vehicle's electrical systems.

          How do I know if my Ignition Lock Assembly needs replacement?

          Common signs that your ignition lock assembly may need replacement include difficulty turning the key, the key getting stuck in the ignition, or the ignition not engaging when the key is turned. If you experience these symptoms, it may be time to replace the ignition lock assembly.

          Can I install the Genuine VW/Audi 4A0905855A myself?

          Yes, the installation of the ignition lock assembly can be a DIY project for those with basic automotive knowledge. However, it is essential to follow proper procedures and safety precautions to avoid damage to the vehicle.

          What are the symptoms of a faulty Ignition Lock Assembly?

          Symptoms of a faulty ignition lock assembly include difficulty inserting or turning the key, intermittent electrical issues, or the ignition failing to engage. These issues can significantly affect the drivability of your vehicle and should be addressed promptly.

          Why should I choose Genuine VW/Audi for my Ignition Lock Assembly needs?

          Choosing Genuine VW/Audi ensures you receive an OEM-quality part designed specifically for your vehicle. Order Genuine VW/Audi 4A0905855A 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
              1393450
            • Manufacturer Part #
              4A0905855A
          • Brand
            Genuine VW/Audi
          • Manufacturer
            Genuine VW/Audi
          • MPN
            4A0905855A
          • Part Type
            Ignition Lock Assembly
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          1992Audi100Base (2.8 V6 GAS)
          1992Audi100S (2.8 V6 GAS)
          1992Audi100CS (2.8 V6 GAS)
          1992Audi100 QuattroCS (2.8 V6 GAS)
          1992AudiS4Base (2.2 L5 GAS)
          1993Audi100Base (2.8 V6 GAS)
          1993Audi100CS (2.8 V6 GAS)
          1993Audi100S (2.8 V6 GAS)
          1993Audi100 QuattroCS (2.8 V6 GAS)
          1993AudiS4Base (2.2 L5 GAS)
          1994Audi100CS (2.8 V6 GAS)
          1994Audi100S (2.8 V6 GAS)
          1994Audi100 QuattroCS (2.8 V6 GAS)
          1994AudiS4Base (2.2 L5 GAS)
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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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