fits model: A7. make: Audi. year: 2019–2026.

( Manufacturer Part Number: 4K8877056A ), ( Type: Sunroof ), ( Oe/oem Part Number: 4k8877056, 4k8877056a ), ( Color: Black ), ( Material: Glass ), ( Features: Glass Windows ), ( Country Of Origin: Germany )
The **Audi 4K8877056A (2019 2026) A7 4K8 Hatchback Panoramic Sunroof Rear Window Glass Panel** is a precision-engineered, high-performance automotive glass component designed exclusively for Audi s premium **A7 Sportback** model, embodying the brand s signature blend of cutting-edge technology and refined craftsmanship. This **panoramic sunroof rear window glass panel** is crafted from **tempered, laminated safety glass** with a **multi-layered structure**, ensuring exceptional durability, structural integrity, and resistance to thermal stress, UV degradation, and environmental contaminants. The glass features a **customized tint and optical clarity** optimized for Audi s signature design aesthetic, seamlessly integrating with the **electrically operated panoramic sunroof mechanism** to deliver a smooth, silent, and weatherproof operation. Engineered with **Audi s proprietary glass treatment**, it minimizes condensation, enhances sound insulation, and maintains optimal visibility even under extreme weather conditions, from scorching sunlight to freezing temperatures. The panel is fitted with **precise laser-cut edges** and **specialized adhesive bonding** to prevent water infiltration, ensuring a leak-free seal that aligns with Audi s rigorous quality standards. Additionally, the glass incorporates **electrochromic or smart-tinting capabilities** (depending on the model variant) for adjustable light transmission, enhancing driver comfort and reducing glare while preserving the sleek, unobstructed lines of the A7 s iconic roofline. For added functionality, the panel may include **integrated rain sensors** or **heated defrosting elements**, further elevating the driving experience by maintaining unobstructed rear visibility in all conditions. This component is a critical element of Audi s **Space Frame architecture**, contributing to the vehicle s structural rigidity while allowing for the expansive, unbroken panoramic glass surface that defines the A7 s luxurious and futuristic cabin. Whether installed in a **premium S line, quattro performance, or high-end e-tron variant**, this rear window glass panel exemplifies Audi s commitment to innovation, safety, and uncompromising excellence in automotive design.
### **Pros and Cons of Buying a Used Audi A7 (4K8, 2019 2026) with a Panoramic Sunroof and Rear Window Glass Panel Issue**
#### **Pros**
1. **Premium Brand and Build Quality**
Audi is known for its high-quality materials, refined interior, and strong resale value. The A7, in particular, offers a spacious, luxurious cabin with premium finishes like leather, aluminum trim, and high-end infotainment.
2. **Strong Performance Options**
The 4K8 series (2019 2026) includes a range of engines, from the **2.0L TFSI (245 272 hp)** to the **3.0L V6 TFSI (335 hp)** and **3.0L V6 TDI (258 hp)**. The **S7 (400 hp)** and **RS7 (480 hp)** models offer high-performance alternatives. The **quattro all-wheel drive** is standard on most variants, providing excellent traction in various conditions.
3. **Advanced Technology and Infotainment**
The A7 features Audi s **Virtual Cockpit (digital instrument cluster)**, **MMI Nav Plus (8-inch touchscreen with voice control)**, and **wireless Apple CarPlay/Android Auto** (on later models). The **adaptive cruise control with stop-and-go (traffic jam assist)** and **lane-keeping assist** enhance safety and convenience.
4. **Spacious and Practical Design**
The A7 is a **hatchback (Sportback)**, offering a **large cargo area (up to 1,580 liters with seats folded)** and a **rear 360 camera** for easier parking. The **panoramic sunroof** improves ventilation and lightness in the cabin.
5. **Comfort and Ride Quality**
The A7 has a **smooth, well-damped suspension** that balances comfort and sportiness. The **adjustable seats (with memory settings)** and **heated/ventilated options** contribute to a premium driving experience.
6. **Good Safety Ratings**
The A7 consistently earns **top safety scores** from Euro NCAP and other organizations. Features like **automatic emergency braking, blind-spot monitoring, and rear cross-traffic alert** are standard or available.
7. **Resale Value Retention**
Audi holds its value well, meaning a used A7 will likely retain a significant portion of its original price, especially if well-maintained.
8. **Exclusive Features**
The **premium sound system (optional), ambient lighting, and remote start** add to the luxury experience.
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#### **Cons**
1. **Rear Window Glass Panel Issue (4K8877056A)**
The **rear window glass panel** in some **2019 2023 A7 models** has been reported to have **quality control problems**, including:- **Cracks or chips** due to thin or poorly bonded glass.
- **Difficulty in operation** (stuck or misaligned).
- **Water leakage** in extreme weather.
This issue is **not widespread in all models**, but it is a known concern, particularly in **earlier production years (2019 2021)**. Later models (2024 2026) may have improved glass quality.
2. **High Maintenance and Repair Costs**
Audi parts and labor are **expensive** compared to mass-market brands. Routine maintenance (oil changes, brake jobs) and unexpected repairs (e.g., turbocharger, suspension) can be costly.
3. **Complex Electronics and Software Issues**
The **MMI infotainment system** can be **glitchy or slow**, and software updates are not always seamless. Some owners report **Bluetooth connectivity problems** or **infotainment freezing**.
4. **Fuel Efficiency Trade-offs for Performance**
While the **TDI diesel** offers good efficiency ( 5.5 6.0 L/100km), the **petrol V6 and S7 models** consume more fuel ( 10 12 L/100km). The **quattro system** also adds weight, slightly reducing efficiency.
5. **Depreciation Over Time**
While Audi retains value, luxury cars **depreciate faster** than mainstream brands. A used A7 may not be as cost-effective long-term as a BMW 3 Series or Mercedes C-Class.
6. **Potential for Hidden Mechanical Issues**
Some **2019 2021 models** have had reports of:- **Transmission issues** (especially in automatic models).
- **Suspension wear** (struts, bushings).
- **Electrical gremlins** (sensor failures, wiring issues).
A **pre-purchase inspection (PPI)** is **highly recommended** before buying.
7. **Panoramic Sunroof Maintenance**
While the sunroof is a luxury feature, it can **leak in heavy rain** if not properly sealed. Some owners report **condensation issues** inside the cabin.
8. **Limited Availability of Parts**
If the car is older, finding **genuine Audi parts** (especially for rare components) can be difficult, leading to longer wait times for repairs.
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### **Conclusion**
The **Audi A7 (4K8, 2019 2026)** is an **excellent choice** for those seeking a **luxurious, high-performance hatchback** with **premium features** and **strong resale value**. However, the **rear window glass panel issue** (particularly in **2019 2021 models**) is a **significant drawback** that could lead to **costly repairs** if not addressed.
If you **prioritize long-term reliability and comfort**, the **2024 2026 models** (with improved glass quality) are the **best options**. For **earlier models (2019 2023)**, **inspect the rear window glass carefully** either **replace it before purchase** or **negotiate a lower price** if it needs work.
### **Recommendation**
- **Best for:** Buyers who **value luxury, performance, and tech** and are willing to **budget for potential repairs**.
- **Avoid if:** You **cannot afford unexpected maintenance costs** or **prioritize bulletproof reliability** over brand prestige.
- **Action Steps Before Buying:**1. **Get a pre-purchase inspection (PPI)** from a **trusted Audi specialist**.
2. **Check service records** ensure the car has been **properly maintained**.
3. **Test the rear window glass** open/close it fully and check for **leaks or cracks**.
4. **Compare financing options** Audi loans often have **high interest rates**, so consider **third-party financing**.
5. **Consider a warranty** if buying from a dealer, ask about **extended warranties** or **glass replacement coverage**.
**Final Verdict:**The **Audi A7 is a fantastic car for the right buyer**, but **due diligence is essential** especially regarding the **rear window glass issue**. If you **find a well-maintained example with a fixed or replaced rear window**, it can be a **great long-term purchase**. Otherwise, **proceed with caution and budget for potential repairs**.
The left side means the Drivers and Right Passenger mileage information about donors car can be found on label in pictures. Local Pick-up: If you prefer local in-person pickup, it is possible. Please carefully review the photos and of items condition fitments before making a purchase to avoid any misunderstandings. 2025 Audi A7 Sport back Premium, Premium Plus, Prestige 3.0L V6 - Electric/Gas.
2019 Audi A7 Sport back Premium, Premium Plus, Prestige 3.0L V6 - Electric/Gas. In such cases, we'll reach out to you after the purchase discuss delivery costs. 2026 Audi RS7 Sport back Performance 4.0L V8 - Electric/Gas.