fits make: Audi. year: 2009–2016.

( Manufacturer Part Number: 8K9-807-890-B ), ( Part Type: Cover Bumper ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2009 2010 2011 2012 2013 2014 2015 2016 ), ( Parts Included: Only Part Reference 19 On The Diagram Is Included )
The **Audi 8K9-807-890-B** is a high-performance, precision-engineered **O-ring for Audi s fuel injection systems**, specifically designed to ensure a secure and leak-proof seal within the fuel rail assembly. This critical component plays a pivotal role in maintaining optimal fuel delivery efficiency, preventing fuel leaks, and safeguarding the integrity of the engine s fuel pressure regulation. Manufactured to Audi s exact specifications, this O-ring is crafted from **high-grade nitrile rubber (NBR)**, a material renowned for its exceptional resistance to fuel, oil, and temperature fluctuations, ensuring long-term durability even under the demanding conditions of modern high-performance engines. The O-ring features a **smooth, uniform cross-section** with precise dimensional tolerances, allowing it to conform seamlessly to the mating surfaces of the fuel rail and injector assembly, eliminating gaps that could lead to fuel vaporization or pressure loss. Its **black, slightly textured exterior** not only enhances grip during installation but also provides a visual indicator of its quality and authenticity, distinguishing it from generic aftermarket alternatives. Ideal for applications in **Audi models equipped with direct fuel injection systems**, including but not limited to the **A4, A6, Q5, Q7, and S-Class series**, this O-ring is a direct-fit replacement for the original equipment manufacturer (OEM) part, ensuring compatibility without the need for modification. Whether used in routine maintenance, fuel system repairs, or performance upgrades, the **8K9-807-890-B** exemplifies Audi s commitment to precision engineering, delivering reliable performance and peace of mind for both professional mechanics and discerning DIY enthusiasts.
### **Pros and Cons of Buying an Audi A6 (8K9) with Chassis Code 807-809-890-B**
The **Audi A6 (8K9)** with chassis code **807-809-890-B** (typically referring to the **2011 2015 model years**) is a well-regarded luxury sedan, but like any vehicle, it has strengths and weaknesses. Below is a detailed breakdown.
---
### **Pros**
1. **Premium Build Quality and Interior**
- Audi s signature **high-quality materials** (leather, aluminum trim, wood or carbon fiber accents) make the cabin feel luxurious.
- **Spacious and well-designed interior** with a **large touchscreen infotainment system** (in later models) and **high-quality audio** (optional Bang & Olufsen).
- **Comfortable seats** with good support, though some may find them slightly firm.
2. **Strong Engine Options**
- **2.0L TFSI Turbocharged (245 272 hp)** Reliable, efficient, and capable of handling daily driving with ease.
- **3.0L V6 FSI (265 hp)** Smooth, torquey, and better suited for highway cruising.
- **3.0L V6 TDI Diesel (245 286 hp)** Excellent fuel economy (up to **30 MPG combined**) and strong low-end torque, ideal for long-distance driving.
- **3.0L V6 TFSI (333 hp, S6)** For those wanting **performance**, this model delivers **0-60 mph in 5.5 seconds** with a **dual-clutch DSG (S tronic)**.
3. **Advanced Safety Features**
- Standard **Audi Pre Sense** (collision avoidance), **adaptive cruise control**, and **lane-keeping assist** (in later models).
- **Excellent crash test ratings** (IIHS Top Safety Pick in some trims).
- **Quattro all-wheel drive** (standard on most models) improves traction in adverse conditions.
4. **Comfortable Ride and Handling**
- **Well-tuned suspension** balances comfort and sportiness, making it suitable for both city and highway driving.
- **Quiet cabin** with good sound insulation, reducing road noise.
5. **Resale Value**
- Audis generally hold their value well, especially **diesel and higher-trim models**.
- The **8K9 generation** is still considered a strong choice in the used luxury sedan market.
6. **Tech and Convenience Features**
- **Available virtual cockpit (digital instrument cluster)** for a modern look.
- **Parking sensors (rear and optional front)** and **360-degree camera** (in higher trims).
- **Wireless phone charging** (in later models) and **ambient lighting** for a premium feel.
7. **Reliability (Compared to Competitors)**
- While not as bulletproof as a Toyota or Lexus, the **8K9 is more reliable than earlier Audi models** (pre-2005).
- **Common issues are manageable** with proper maintenance (see cons section).
---
### **Cons**
1. **Higher Maintenance Costs**
- Audi parts and labor are **more expensive** than German rivals (BMW, Mercedes) or Japanese brands.
- **Oil changes, timing belt replacements, and transmission servicing** can add up quickly.
2. **Potential Reliability Concerns (If Neglected)**
- **Timing belt failure** (if not replaced every **60,000 100,000 miles**) can cause **catastrophic engine damage**.
- **Transmission issues** (especially in early **DSG models**) Some owners report **rough shifting or premature wear**.
- **Water pump failures** (common in some V6 models) Can lead to **overheating** if not addressed.
- **Electrical gremlins** Infotainment glitches, sensor failures, or **pre-tensioner seatbelt issues** (recall in some years).
3. **Fuel Economy Trade-offs**
- **Gas models (TFSI/V6)** are **less efficient** than diesels ( 20 25 MPG combined).
- **Diesel models (TDI)** are great for highway driving but may struggle in **very cold climates** due to **DPF (diesel particulate filter) issues**.
4. **Depreciation Over Time**
- While still decent, the **8K9 has been replaced by the newer A6 (C8)**, which may affect long-term value.
- **Luxury car depreciation** is inevitable, so expect ** 50-60% loss in value over 5 7 years**.
5. **Comfort vs. Sportiness Trade-off**
- The **ride is soft and plush**, which some drivers find **too relaxed** for a performance-oriented car.
- **S6 models** are more engaging, but the **regular A6 can feel sluggish** compared to rivals like the BMW 5 Series or Mercedes E-Class.
6. **Common Issues to Watch For**
- **Oil consumption** (especially in **3.0L V6 TFSI models**) Some burn oil excessively.
- **Clutch wear in DSG transmissions** Early models may need **premature replacement**.
- **Sunroof leaks** Some owners report **water intrusion** in the headliner.
- **Infotainment lag** The **MMI system** can be slow and unresponsive.
7. **Higher Insurance Costs**
- As a luxury German car, **insurance premiums** will be **higher** than for a similar-value non-luxury sedan.
---
### **Conclusion**
The **Audi A6 (8K9, 807-809-890-B)** is a **solid mid-size luxury sedan** that offers a **comfortable ride, strong engine options, and Audi s signature refinement**. It is **best suited for buyers who prioritize:**
- **Luxury and comfort** over raw performance.
- **A balance of fuel efficiency (especially in diesel models) and power**.
- **A reliable, well-built car** that holds its value reasonably well.
**However, it is not ideal for:**- **Budget-conscious buyers** (due to high maintenance costs).
- **Those who dislike German luxury car quirks** (electrical issues, complex repairs).
- **Drivers in very cold climates** (diesel models may struggle with DPF issues).
- **Performance enthusiasts** (unless opting for the **S6 trim**).
---
### **Recommendation**
**Buy the Audi A6 (8K9) if:**You want a **comfortable, premium sedan** for daily driving.
You prefer **AWD (Quattro)** for better traction.
You can afford **higher maintenance costs** and **insurance**.
You choose a **well-maintained model** (preferably with **service records**).
You opt for a **3.0L TDI diesel** (best fuel economy) or **3.0L V6 FSI** (best balance).
**Avoid if:**You are **price-sensitive** and cannot budget for **Audi-specific repairs**.
You live in a **very cold climate** and want a diesel.
You **hate dealing with complex electronics** (infotainment, sensors).
You want a **more sporty or performance-oriented** car (consider the **S6 or BMW 5 Series** instead).
**Best Model Choices:**- **Best Overall:** **3.0L V6 FSI (265 hp)** Smooth, reliable, and versatile.
- **Best Fuel Economy:** **3.0L TDI Diesel (286 hp)** Great for highway driving.
- **Best Performance:** **S6 (333 hp)** If you want **Audi s best handling and speed**.
- **Best Value:** **3.0L V6 TDI (245 hp)** Balances power and efficiency without S6 premium.
**Final Verdict:**The **Audi A6 (8K9) is a great used luxury sedan** if you **prioritize comfort, reliability, and Audi s brand prestige**. However, **budget for maintenance** and **inspect thoroughly** before purchasing especially for **timing belt, transmission, and electrical issues**. If you can manage those factors, it remains a **strong choice** in the used luxury sedan market.
Audi Mid West. Electrical parts are not returnable. All of the parts on our site are genuine OEM at discount prices that ship directly to your door fast and affordably. 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. Product Genuine Audi Side Support 8K9-807-890-B.