AUDI 8Y0-947-355-F Led Unit

( Manufacturer Part Number: 8Y0-947-355-F ), ( Part Type: Led Unit ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 8 On The Diagram Is Included )

Review AUDI Genuine Led Unit

The **Audi 8Y0 947 355-F LED Unit** is a high-performance, factory-specification lighting assembly designed to replace the original halogen or HID headlight components in Audi vehicles equipped with the 8Y0 headlight module, commonly found in models such as the Audi A4 (B8), A5, A6, and Q5 (depending on the specific generation and market variant). This LED unit represents a significant upgrade over traditional lighting systems, delivering superior illumination, enhanced visibility, and a sleek, modern aesthetic while maintaining full compliance with Audi s original design and fitment standards. Engineered with precision, the 8Y0 947 355-F LED unit features a robust, high-quality housing crafted from durable materials to ensure long-term reliability and resistance to environmental factors such as moisture, dust, and temperature fluctuations. Inside, the assembly incorporates advanced LED chip technology, optimized for both efficiency and brightness, providing a crisp, white light output that exceeds the clarity of conventional halogen bulbs. The LED array is meticulously arranged to replicate the original beam pattern of the OEM headlight, ensuring that the unit seamlessly integrates with the vehicle s existing optics and projector lenses, delivering a focused, glare-free illumination that enhances road safety without compromising the aesthetic integrity of the vehicle s front end.

Beyond its functional advantages, the 8Y0 947 355-F LED unit is also engineered to meet stringent regulatory standards, including ECE and FMVSS compliance, ensuring that it is legally roadworthy in most jurisdictions. The unit is designed to fit directly into the original headlight housing, requiring minimal modification, which simplifies installation and reduces the risk of misalignment or improper fitment. Whether used for a straightforward upgrade to improve nighttime visibility or as part of a more extensive lighting retrofit, this LED unit offers a compelling blend of performance and authenticity. Its compact yet powerful design makes it an ideal choice for drivers seeking to enhance their vehicle s lighting capabilities while preserving the original styling cues that define Audi s signature headlight architecture. With its combination of cutting-edge technology and meticulous craftsmanship, the 8Y0 947 355-F LED unit stands as a testament to the evolution of automotive lighting, offering a brighter, more efficient alternative to traditional lighting solutions.

### Pros and Cons of buying a Audi 8Y0-947-355-F LED Unit

The **Audi 8Y0-947-355-F** is an LED tail light assembly designed for certain Audi models, primarily the **A4 (B9), A5, A6, A7, and Q5 (C7)** from the late 2010s onward. Here are the key advantages of purchasing this part:

1. **Improved Visibility and Safety**

The LED unit provides brighter, more energy-efficient lighting compared to traditional halogen bulbs. LEDs offer better visibility in low-light conditions, reducing the risk of accidents due to poor tail light performance.

2. **Modern Aesthetic and Compliance**

Many newer Audi models require LED tail lights to meet current lighting regulations and aesthetic standards. This unit ensures your vehicle remains compliant with emissions and safety standards while maintaining a sleek, modern look.

3. **Longer Lifespan**

LEDs typically last significantly longer than halogen bulbs, often exceeding **50,000 hours** of use. This reduces the frequency of replacements and maintenance costs over time.

4. **Energy Efficiency**

LED tail lights consume far less power than halogen bulbs, which can slightly improve fuel efficiency, especially in vehicles where lighting systems draw significant power.

5. **Compatibility with Advanced Features**

Some Audi models use LED tail lights for **adaptive brake lights (ABS, ESP, or dynamic brake lights)**, which enhance safety by signaling braking intentions more effectively to following drivers.

6. **Easier Installation (Compared to Some Alternatives)**

While installation requires some technical skill, this is a direct replacement part, meaning it should fit without major modifications. Many aftermarket LED kits require additional wiring or adapters, which this unit avoids.

7. **Reduced Heat Output**

LEDs generate less heat than halogens, which can reduce the risk of melting plastic components or damaging surrounding wiring over time.

---

1. **Higher Upfront Cost**

LED tail light assemblies are generally more expensive than halogen bulbs or even some aftermarket LED kits. The price reflects the quality, longevity, and compatibility with Audi s systems.

2. **Potential for Incompatibility with Non-OEM Parts**

While this is an **OEM (Original Equipment Manufacturer) part**, it is critical to confirm that it matches your exact model year and variant. Mixing parts from different model years or trims (e.g., 3.0L TDI vs. 2.0L TFSI) can lead to fitment issues or electrical problems.

3. **Requires Professional Installation for Full Functionality**

Some Audi models use **integrated LED modules with sensors or wiring harnesses** that must be properly connected to ensure features like **adaptive brake lights or turn signal sequencing** work correctly. A DIY installation may not activate all functions properly.

4. **Limited Availability and Pricing Fluctuations**

As an OEM part, availability can be inconsistent, especially if the model is no longer in production. Prices may vary significantly depending on the seller (eBay, Audi dealerships, third-party suppliers), and counterfeit parts are a risk when buying from unverified sources.

5. **Potential for Overkill on Older Models**

If your Audi is an older model that originally came with halogens, upgrading to LEDs may not provide a noticeable difference in performance. However, if your vehicle already has LEDs or is required to meet newer emissions standards, this is a necessary upgrade.

6. **No Bulb Replacement Option**

Unlike halogen tail lights, which can be replaced individually, this is a **complete module**. If the unit fails, the entire assembly must be replaced, which can be costly if only one component (e.g., the brake light LED) burns out.

7. **Possible Electrical Compatibility Issues**

Some Audi models use **specific voltage or current requirements** for LED modules. If the wiring or control unit is not properly matched, the LEDs may flicker, fail to activate, or draw excessive power, potentially affecting other electrical systems.

---

The **Audi 8Y0-947-355-F LED tail light unit** is a **high-quality, reliable, and necessary upgrade** for Audi owners who need to maintain compliance with modern lighting standards or replace failing OEM components. It offers **superior visibility, longevity, and energy efficiency**, making it a worthwhile investment for safety and aesthetics.

However, the **higher cost, potential installation complexity, and risk of incompatibility** with non-matching model variants mean it is not a trivial purchase. If you are replacing a failed OEM unit or upgrading to meet emissions requirements, this is the **best choice**. For older models or those with simpler lighting needs, an aftermarket LED kit might be a more cost-effective alternative though it may lack the precision and reliability of an OEM part.

---

1. **Verify Compatibility First**

Before purchasing, confirm that the **8Y0-947-355-F** matches your **exact Audi model, year, and trim**. Check the **VIN or service manual** to ensure it is the correct part number. If in doubt, consult an Audi specialist or dealership.

2. **Purchase from a Trusted Source**

Buy from **authorized Audi dealers, reputable online retailers (like RockAuto, Amazon, or eBay with verified sellers), or certified refurbished suppliers** to avoid counterfeit or damaged parts.

3. **Consider Professional Installation**

If you are not experienced with automotive electrical work, have a **qualified mechanic or Audi technician** install the unit. This ensures all functions (brake lights, turn signals, etc.) are properly calibrated and connected.

4. **Budget for Additional Costs**

Account for **labor costs** if installing professionally, as well as any **additional wiring or adapters** that may be needed if the harness does not match perfectly.

5. **Alternative Options for Cost Savings**

If the part is **extremely expensive**, explore **aftermarket LED tail light kits** (e.g., from **Hella, Valeo, or Bosch**) that offer similar performance at a lower cost. However, these may not include all OEM features (like adaptive braking lights).

6. **Check for Warranty or Return Policy**

Ensure the seller offers a **warranty or return policy** in case of defects or fitment issues. OEM parts from dealerships typically come with a warranty, while third-party sellers may not.

---

- You need a **direct OEM replacement** for a failing tail light module.

- Your Audi requires **LED tail lights for emissions compliance** or aesthetic consistency.

- You are willing to invest in **long-term reliability and safety benefits**.

- You are on a **tight budget** and can find a compatible aftermarket LED kit.

- Your model has **unique wiring or electrical quirks** that may not be fully supported by this unit.

- You are unsure about **installation complexity** and lack mechanical experience.

For most Audi owners in need of a **genuine, high-performance tail light upgrade**, this is the **best available option**, provided compatibility and installation are properly addressed.

Details:

Special Order Items are not returnable under any circumstance. Electrical parts are not returnable. Genuine Audi Parts. Parts must be resalable and in the original packaging.

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Losses or damages that occur after final delivery confirmation are not covered.

part #: 8y0947355 prices

• $13.96-$31.24

specifications interiorlightsot:

• for makes: Audi
• mpn: 8y0-947-355-f
• part type: Led Unit
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 8 On The Diagram Is Included

returns interiorlightsot:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller interiorlightsot:

• # reviews: 6060
• rating: 99.3%
• city: Henderson, Nevada

shipping interiorlightsot:

• cost: $8.99
• type: Fixed
• class: Standard
• transit: 3-8 Days
• service: Standard

payments interiorlightsot:

• other
• wallet: Apple-pay
• credit card: Visa

general interiorlightsot:

• Car Truck Parts Accessories > Lighting Lamps > Interior Light Assemblies
• condition: New

offer interiorlightsot:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 4, 2026

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