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  2. sku: 19288881315741711
  3. AUDI 8V1857409L

AUDI 8V1857409L Rear View Mirror Tron Front Left Blind Spot 78K

fits model: A3. make: Audi. year: 2016–2018.

8v1857409l Audi 16-18 8v A3 E-tron Front Left Side Rear View Mirror With Blind Spot Oem 78k

( Manufacturer Part Number: 8V1857409L ), ( Part Type: Mirror ), ( Oe/oem Part Number: 8v1857409l, 8v1857409ac, 8t0959578, 8v0857239, 8v0857535f, 8v0857527e, 8v0949101a, 8v0949101c, 8v1949145 )

Review AUDI 8v E tron Front Left Side Rear View Mirror Blind Spot Oem 78k fits A3 2016–2018

The **Audi 8V1857409L (2016 2018) 8V A3 e-tron Front Left Rear View Mirror with Blind Spot Detection** is a premium, high-performance exterior mirror designed specifically for Audi s iconic 8V platform, which includes the A3 and A3 e-tron models produced between 2016 and 2018. This mirror is engineered to seamlessly integrate with the vehicle s sleek, aerodynamic styling while delivering advanced driver-assistance features for enhanced safety and convenience. Crafted from high-quality materials, the mirror features a robust, corrosion-resistant construction that ensures durability even in harsh weather conditions, making it ideal for both urban commuting and long-distance travel. The blind spot detection system, a hallmark of Audi s commitment to driver assistance, employs sophisticated sensors embedded within the mirror housing to monitor the vehicle s immediate surroundings, providing real-time alerts via visual and audible cues when another vehicle enters the blind spot. This feature significantly reduces the risk of collisions during lane changes or parking maneuvers, offering peace of mind to the driver. The mirror s design also incorporates Audi s signature LED lighting, which enhances visibility in low-light conditions while contributing to the vehicle s modern, futuristic aesthetic. The ergonomic, one-touch folding mechanism allows for effortless adjustment, ensuring optimal functionality and ease of use. Whether parked in tight urban spaces or navigating busy highways, this mirror combines cutting-edge technology with Audi s signature craftsmanship, embodying the brand s dedication to innovation and driver-centric design.

### **Pros and Cons of buying a Audi A3 e-tron (8V 1857409L, 2016-2018) Front Left/Right Rear View Mirror with Blind Spot Monitoring**

#### **Pros:**

1. **Enhanced Safety Features** The blind spot monitoring system helps prevent collisions during lane changes, especially useful in heavy traffic or when merging. It provides visual and audible alerts when a vehicle enters the blind spot.

2. **Compatibility with Audi s Infotainment System** The mirror integrates seamlessly with the car s existing electronics, ensuring smooth functionality with the central display and warning alerts.

3. **Improved Driver Awareness** The system reduces the risk of accidents caused by missed blind spots, making the car safer for both the driver and other road users.

4. **Potential Resale Value Boost** Adding or upgrading safety features like blind spot monitoring can make the vehicle more attractive to buyers, potentially increasing its resale value.

5. **Aftermarket Support** Audi has a strong aftermarket presence, meaning parts and installation services are widely available, reducing downtime if issues arise.

6. **Compatibility with Other Audi Models** If you plan to upgrade or switch to another Audi model in the future, these mirrors may be reusable or adaptable.

7. **Reduced Driver Fatigue** Constantly checking blind spots manually can be tiring; this system automates the process, making long drives more comfortable.

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#### **Cons:**

1. **Cost** The installation of aftermarket blind spot mirrors can be expensive, especially if professional labor is required. Prices vary depending on whether you opt for OEM (Original Equipment Manufacturer) or third-party parts.

2. **Potential Installation Complexity** If not installed correctly, the system may malfunction, leading to false alerts or missed warnings. Improper installation could also void warranty coverage.

3. **Compatibility Issues** While designed for the A3 e-tron, slight variations in wiring or software between different model years (2016-2018) could cause compatibility problems. A professional diagnostic check is advisable before purchase.

4. **False Positives/Negatives** Some blind spot systems are prone to false alerts (e.g., triggering when no vehicle is present) or missing actual threats (e.g., not detecting a slow-moving bike). The quality of sensors and software affects reliability.

5. **Dependence on Battery Health** The system relies on sensors and wiring that may degrade over time, especially if the car s battery is weak or the wiring is damaged. Regular maintenance is necessary.

6. **Limited Customization** Unlike some aftermarket systems, Audi s OEM blind spot mirrors may not offer extensive customization options for alerts (e.g., adjusting sensitivity or warning sounds).

7. **Potential Void of Warranty** If the car is still under warranty, installing aftermarket parts (even if compatible) might void certain coverage, depending on the manufacturer s policies.

8. **Learning Curve** Drivers accustomed to manual blind spot checks may initially ignore the alerts, leading to a temporary adjustment period before fully trusting the system.

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### **Conclusion:**

The **Audi A3 e-tron (8V) blind spot monitoring mirrors (8V1857409L)** are a valuable upgrade for safety-conscious drivers, particularly those who frequently drive in urban or highway conditions where blind spots pose a risk. The system s integration with the car s existing electronics and potential resale benefits make it a worthwhile investment for those prioritizing safety. However, the cost, installation complexity, and potential for false alerts must be carefully considered.

For buyers with mechanical or electrical experience, a DIY installation might save money, but professional installation is recommended to ensure proper functionality and avoid voiding warranties. If the car is still under warranty, consulting Audi or a certified dealer beforehand is essential.

### **Recommendation:**

- **If safety is a top priority and budget allows**, purchasing and professionally installing these mirrors is a strong recommendation. They significantly reduce blind spot-related risks.

- **If cost is a concern**, consider a third-party blind spot system that may offer similar functionality at a lower price, though ensure it is compatible with the A3 e-tron s electrical system.

- **For DIY enthusiasts**, verify wiring diagrams and compatibility before attempting installation, as incorrect modifications can damage the car s electronics.

- **Always check the car s current condition** if the mirrors or related wiring are already damaged, repairs may be needed before installing the blind spot system.

Ultimately, the decision depends on balancing safety needs, budget, and technical comfort with installation. For most drivers, the benefits outweigh the drawbacks, making this an excellent upgrade.

Details:

There are scratches and scuffs, photo: #12 #17 #18. Came off of A3 E-Tron with 78k miles. For model's with Blind Spot option. Item may show light scuffs, scratches or other imperfections as a result of this being used part.

Large items include: hood, door shell, fender, engine, transmission, trunk hatch, windshield, bumper, reinforcement clip, sub frame, roof, quarter apron, gas tank, etc. All of the parts are tested either before or after removal from vehicle. 16-18 Audi 8V A3 E-Tron: Front Left Side Rear View Mirror w/ Blind Spot: 8V1857409L OEM 78k: Original Part. Shipping cost or carrier may change, based on final destination.

Please, do not purchase parts just to check and diagnose your vehicles problem.

part #: 8v1857409l prices

  • $348.60-$673.08

specifications mirroexter:

  • for models: A3
  • for makes: Audi
  • for years: 2016-2018
  • mpn: 8v1857409l
  • part type: Mirror
  • oe/oem part number: 8v1857409l, 8v1857409ac, 8t0959578, 8v0857239, 8v0857535f, 8v0857527e, 8v0949101a, 8v0949101c, 8v1949145

shipping mirroexter:

  • cost: $15.00
  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • transit: 4-7 Days
  • class: Standard
  • carrier: FedEx

offer mirroexter:

  • best offers: True
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: April 17, 2026

payments mirroexter:

  • credit card: Discover
  • wallet: Paypal
  • other

seller mirroexter:

  • city: Pleasant Grove, California
  • rating: 99.8%
  • # reviews: 56549

general mirroexter:

  • Exterior Parts Accessories > Side View Mirrors > Mirror Assemblies
  • condition: Used

returns mirroexter:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted
for models: a3, for makes: audi, for years: 2016-2018, part type: mirror, oe/oem part number: 8v1857409l, 8v1857409ac, 8t0959578, 8v0857239, 8v0857535f, 8v0857527e, 8v0949101a, 8v0949101c, 8v1949145,
category: auto parts > exterior parts accessories > side view mirrors > mirror assemblies, sku: 19288881315741711,
Audi 8V1857409L Is Similar To:
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2 offers $348.60–$673.08 USD
  • Used. Offer #1 priced at $348.60 + $15.00 shipping estimate = $363.60* total. There are scratches and scuffs, photo: #12 #17 #18. OEM 78k.+$15.00 shipping
  • New. Offer #2 priced at $673.08 + $24.76 shipping estimate = $697.84* total. Audi Mid West ProductGenuine Audi Mirror Assembly 8V1-857-409-AC-9B9.+$24.76 shipping

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