fits model: B9, A4, S4. make: Audi. year: 2017–2024.

( Manufacturer Part Number: 8W0854328C ), ( Part Type: Seal Sun ), ( Oe/oem Part Number: 17 18 19 20 21 22 23 24 2017 2018 2019 2020 2021 2022 2023 2024 ), ( Manufacturer Warranty: 30 Day ), ( Placement On Vehicle: Upper, Top, Left, Driver, Right, Passenger )
The **Audi 8W0854328C (2017 2024, B9 A4 S4) Sunroof Weather Seal Set (Left & Right)** is a precision-engineered component designed to ensure optimal sealing, weather protection, and noise reduction for Audi s iconic panoramic sunroof systems. This high-performance seal set is specifically tailored for the **B9 generation A4 and S4 models**, spanning the production years from **2017 through 2024**, where the sunroof mechanism plays a critical role in both aesthetics and functionality. Crafted from durable, high-grade **EPDM (ethylene propylene diene monomer) rubber**, this seal set is engineered to withstand extreme temperature fluctuations, UV exposure, and constant flexing, maintaining its elasticity and resilience over time. The **left and right weather seals** work in tandem to create an airtight barrier against rain, wind, and debris, preventing leaks while minimizing road noise and drafts for a quieter, more comfortable cabin experience. The seals feature a **smooth, contoured profile** that conforms perfectly to the sunroof s frame, ensuring a snug fit that resists warping or degradation, even under prolonged use. Whether installed during routine maintenance or as part of a sunroof restoration, this seal set is an essential upgrade for owners seeking to restore factory-level performance, enhance durability, and eliminate common issues like water intrusion or rattling. Its compatibility with Audi s advanced sunroof systems including those with **electronic tilt-and-slide or fixed-glass designs** makes it a versatile solution for maintaining the vehicle s premium feel and reliability.
### **Pros and Cons of Buying Audi Part Number 8W0854328C (Sunroof Weather Seal Set Left & Right, Fits 2017-2024 A4 S4 B9)**
#### **Pros:**1. **Direct Fitment for Audi B9 A4/S4 (2017-2024)** This part is specifically designed for your vehicle model, ensuring compatibility without modifications.
2. **Improves Weather Sealing** A high-quality seal prevents water leaks, wind noise, and condensation, enhancing comfort and protecting the interior.
3. **Durable Materials** Audi s OEM seals are typically made from rubber or silicone compounds that resist aging, UV damage, and wear over time.
4. **Easy Installation** The kit includes both left and right seals, simplifying the replacement process compared to sourcing individual parts.
5. **Maintains Resale Value** Keeping the sunroof in good condition helps preserve the vehicle s aesthetic and functionality, which can be appealing to future buyers.
6. **Reduces Long-Term Costs** Preventing leaks avoids potential water damage to the headliner, dashboard, and electrical components, saving on costly repairs.
7. **OEM Quality Assurance** Audi s original parts meet strict manufacturing standards, offering reliability and longevity compared to aftermarket alternatives.
#### **Cons:**1. **Higher Cost** OEM parts are more expensive than generic or aftermarket replacements, which may be a financial consideration for budget-conscious buyers.
2. **Potential for Counterfeit Parts** Purchasing from untrusted sellers risks receiving low-quality or fake Audi parts, which could fail prematurely.
3. **Installation Complexity** If not experienced with automotive repairs, removing the old seals and installing the new ones may require careful disassembly of the sunroof mechanism.
4. **Limited Availability** Depending on the region, finding this exact part (especially if it s discontinued) may require ordering from specialized suppliers, leading to longer wait times.
5. **Warranty Implications** If the vehicle is still under warranty, replacing OEM parts with aftermarket components could void coverage for sunroof-related issues.
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### **Conclusion:**The **Audi 8W0854328C sunroof weather seal set** is a reliable choice for maintaining or restoring your 2017-2024 A4/S4 s sunroof functionality. The benefits of improved sealing, durability, and OEM quality outweigh the higher cost and potential installation challenges for most owners. However, if cost is a major concern, thoroughly researching aftermarket alternatives (e.g., **MANN HUMMEL, Febi Bilstein, or local Audi-approved suppliers**) could yield comparable results at a lower price though with slightly reduced longevity.
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### **Recommendation:** - **Buy OEM (8W0854328C) if:**- You prioritize long-term reliability and want to avoid future leaks.
- You re comfortable paying a premium for Audi s quality assurance.
- You plan to sell the car later, as OEM parts signal attention to detail.
- **Consider Aftermarket Options if:**- Budget constraints make OEM parts unaffordable.
- You re confident in selecting a reputable brand (e.g., **MANN HUMMEL 3300000000** or **FEBi 3300000000**) with similar specifications.
- You re experienced with DIY repairs and willing to research installation videos.
**Where to Buy:**- **Authorized Audi Dealers** (for OEM parts with warranty).
- **Specialty Auto Parts Retailers** (e.g., **RockAuto, CarQuest, or local Audi specialty shops**).
- **Online Marketplaces** (eBay, Amazon, or Audi s official website), but verify seller authenticity to avoid fakes.
**Installation Tip:** If attempting DIY, take photos during disassembly, use a pry tool carefully, and ensure the new seals are seated properly to avoid gaps. If unsure, consult a mechanic for $100 $150 in labor.
Most Mercedes and BMW parts must be re-programmed in order to work your vehicle. COLOR EXTERIOR: LZ7G FLORETT SILVER METALLIC. 2017 AUDI A4 2.0L FWD SEDAN AT. MILEAGE: 75,830.
Also, most part numbers must match in order to fit your vehicle. LOT # 081525B.