fits model: A4, S4, B8. make: Audi. year: 2009–2016.

( Brand: Audi Genuine Oem Original Factory Part ), ( Manufacturer Part Number: 8K5853703 ), ( Type: Window Trim ), ( Color: Silver ), ( Attachment Type: Clip-on ), ( Material: Aluminum ), ( Finish: Brushed, Chrome, Polished Chrome, Brushed Aluminum, Aluminum ), ( Country Of Origin: Germany ), ( Placement On Vehicle: Front, Left, Lower, Rear, Upper )
The **Audi 8K5853703 Aluminum Left Rear Window Glass Molding** for the **2009 2016 B8-generation A4 and S4** is a precision-engineered component designed to seamlessly integrate with the vehicle s sleek, high-performance aesthetic while ensuring optimal functionality and durability. Crafted from high-quality **aluminum alloy**, this molding is not only lightweight reducing overall vehicle weight for improved handling and fuel efficiency but also resistant to corrosion, rust, and environmental wear, making it ideal for both urban commuting and spirited driving conditions. The **left-side rear window molding** features a clean, aerodynamic contour that complements Audi s signature design language, with smooth curves and crisp edges that enhance the car s sporty yet refined silhouette. Its **precision-machined fit** ensures a snug, gap-free installation, eliminating drafts and maintaining the vehicle s aerodynamic efficiency, which is particularly critical for the S4 s performance-oriented chassis. The molding is also designed to accommodate the **electric window regulator mechanism**, providing a secure and stable interface that prevents misalignment or rattling over time. Whether installed on a standard A4 or the high-performance S4, this molding contributes to the vehicle s premium feel, protecting the window frame from scratches, UV damage, and minor impacts while preserving the factory s polished appearance. Built to Audi s exacting standards, it is a direct replacement part, ensuring compatibility with the original equipment manufacturer s specifications for a flawless, long-lasting fit.
### Pros and Cons of Buying Audi A4/S4 B8 Left Aluminum Roof Window Glass Molding (Part Number: 8K5853703, 2009 2016)
#### **Pros:**1. **Authentic Fit and Finish** Audi vehicles are known for their premium build quality, and original parts like this roof window molding maintain the car s sleek, high-end appearance. The aluminum construction matches the B8 series design language, ensuring a seamless look.
2. **Durability** Aluminum is resistant to corrosion and rust, which is beneficial for long-term use, especially in regions with harsh weather conditions. It also maintains its shape better than plastic alternatives over time.
3. **Compatibility** This part is specifically designed for the 2009 2016 Audi A4/S4 B8 platform, ensuring a perfect fit without modifications. It includes the left-side roof window glass molding, which is a common point of wear or damage.
4. **Resale Value Protection** Using OEM parts helps preserve the vehicle s value, as modified or aftermarket components can deter potential buyers. This is particularly important for Audi owners who prioritize maintaining their car s condition.
5. **Ease of Installation** As an OEM part, it is designed to integrate smoothly with the existing window mechanism and trim, reducing the risk of installation errors that could lead to further damage.
6. **Aesthetic Consistency** The molding complements the car s interior and exterior design, contributing to a cohesive and premium look. This is especially important for owners who take pride in their vehicle s appearance.
7. **Warranty Coverage** If purchased from an authorized Audi dealer or a reputable supplier, this part may come with a warranty, providing peace of mind against defects.
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#### **Cons:**1. **High Cost** OEM Audi parts are typically more expensive than aftermarket alternatives. The price may be a significant investment, especially if the part is only needed due to minor damage or wear rather than a full replacement.
2. **Limited Availability** Depending on the region, sourcing this specific part from an authorized dealer can be challenging. Some suppliers may not stock older Audi parts, requiring additional time or effort to locate the correct item.
3. **Potential for Counterfeit Parts** If purchasing from third-party sellers (e.g., eBay, online marketplaces), there is a risk of receiving counterfeit or low-quality parts that do not meet OEM standards. This could lead to poor fit, premature failure, or damage to the window mechanism.
4. **Installation Complexity** While the part itself is designed for easy installation, removing the old molding may require careful handling to avoid damaging the surrounding trim, window tracks, or seals. DIYers without experience may struggle, potentially leading to additional costs for professional labor.
5. **Weight Considerations** Aluminum is lighter than steel, but the molding itself is not significantly heavy. However, if the window mechanism is already strained (e.g., due to age or previous damage), the added weight of the molding could contribute to long-term wear on the motor or tracks.
6. **Environmental Impact** As an OEM part, this molding may not be as eco-friendly as recycled or aftermarket alternatives. If sustainability is a priority, exploring lighter or more sustainable options could be worth considering.
7. **Overkill for Minor Damage** If the molding is only cracked or chipped rather than completely broken, some owners might opt for a less expensive repair (e.g., filling cracks with body filler) instead of a full replacement. In such cases, the cost-benefit ratio may not justify a full OEM replacement.
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### **Conclusion:**Buying the Audi A4/S4 B8 left aluminum roof window glass molding (8K5853703) is a practical choice for owners who prioritize authenticity, durability, and long-term value. The part ensures a perfect fit, maintains the car s premium appearance, and protects resale value. However, the high cost, potential availability issues, and risk of counterfeit parts are significant drawbacks that must be weighed against the benefits.
For minor cosmetic damage, alternative solutions (e.g., aftermarket parts or repairs) may be more cost-effective. But if the molding is damaged beyond repair or if the owner seeks to restore the car to factory condition, the OEM part is the best option for quality and longevity.
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### **Recommendation:**1. **Verify the Part s Condition** If the molding is only partially damaged, consider whether a full replacement is necessary or if a targeted repair (e.g., filling cracks) would suffice. This could save money without compromising the car s appearance.
2. **Purchase from a Trusted Source** Buy the part from an authorized Audi dealer, a reputable online retailer with a return policy, or a supplier specializing in OEM Audi parts. Avoid unknown sellers to minimize the risk of counterfeit goods.
3. **DIY or Professional Installation?** If you have experience with automotive repairs, the installation may be manageable. However, if the window mechanism is old or the surrounding trim is fragile, hiring a professional to ensure proper alignment and sealing is advisable.
4. **Compare Aftermarket Options** While aftermarket parts may not match the exact fit or finish of an OEM molding, some high-quality aftermarket suppliers (e.g., Mann Filter, Dorman, or specialized Audi trim manufacturers) offer durable alternatives at a lower cost. Research these options if budget is a concern.
5. **Consider the Big Picture** If this is part of a larger restoration project, factor in the cost of labor, additional parts (e.g., window regulators, seals), and potential hidden issues (e.g., rust, worn tracks) that may arise during the process.
**Final Verdict:** For owners committed to maintaining their Audi s integrity and willing to invest in quality, the OEM roof window molding is the best choice. However, those on a tight budget or dealing with minor damage should explore alternatives before committing to a full replacement. Always prioritize sourcing from reliable suppliers to avoid disappointment.
This came off of a 2016 Audi S4 quarto. Working perfectly clean condition came off a 2016 Audi S4, item has normal signs of usage like scratches and dents. Audi Genuine OEM Original Factory Part, LOW MILAGE. Fitment will fit on non-USA Production cars from 2007 to 2008, if chassis is a B8 / 8K 8T 8R0 European version spec car.
Fits 2009 to 2016 Audi A4,S4 B8 /B8.5 Sedan model's.