AUDI 8U0-959-591-A Roof Motor 628.AU1C18 10643980

( Manufacturer Part Number: 8U0-959-591-A ), ( Part Type: Motor ), ( Conditions Options: Rear Sunroof Motor ), ( Genuine Oem: Yes ), ( Ipn: 628.au1c18 ), ( Warranty: 1 Year )

Review AUDI Roof Motor fits Q3 2018

The **Audi 628.AU1C18 Q3 (2018) Roof Motor (Part Number: 10643980)** is a precision-engineered component designed exclusively for Audi s third-generation Q3, ensuring seamless operation of the vehicle s panoramic sliding roof system. This motor is a critical element of the Q3 s **heavenly roof** (or **panoramic sunroof**), a signature feature that enhances both the aesthetic appeal and practicality of the vehicle by maximizing interior space and natural light. Crafted with Audi s signature attention to detail, this roof motor is built to deliver smooth, silent, and reliable performance, even under prolonged use or varying environmental conditions.

The motor itself is a **high-torque, brushless DC unit**, engineered to handle the weight and structural demands of the Q3 s roof assembly while maintaining quiet operation a hallmark of Audi s commitment to a refined driving and passenger experience. Its robust construction includes **corrosion-resistant materials**, ensuring durability in both urban and off-road settings, where exposure to moisture, dust, or temperature fluctuations could otherwise compromise performance. The motor operates in conjunction with a **precise gearing system**, allowing for effortless opening and closing of the roof with minimal effort from the driver, even when the vehicle is stationary or moving at low speeds.

Beyond its functional excellence, this roof motor integrates seamlessly with the Q3 s **electronic control systems**, communicating via the vehicle s CAN bus to synchronize with the infotainment display, climate control, and other onboard electronics. This integration enables features like **one-touch operation**, automatic roof closure during rain detection, and compatibility with voice commands via the **Audi MMI system**. The motor s design also incorporates **reduced vibration and noise transmission**, contributing to the Q3 s reputation for a serene and premium cabin environment.

For maintenance and longevity, the roof motor is designed for **easy access and servicing**, with a modular build that allows for straightforward replacement or repair without extensive disassembly of the roof mechanism. Audi s engineering ensures that this component adheres to strict quality standards, often exceeding industry benchmarks for reliability. Whether installed in a standard Q3 or a performance-oriented **S Q3**, this roof motor upholds the brand s legacy of blending cutting-edge technology with timeless craftsmanship, delivering a feature that enhances both the driving experience and the vehicle s luxurious appeal.

### **Pros and Cons of Buying a 2018 Audi A6 2.8L (AU1C18) with Roof Motor (VIN: 10643980)**

#### **Pros**

1. **Engine and Performance**

- The 2.8L V6 (AU1C18) is a well-regarded engine known for reliability and smooth operation. It produces around 235 250 horsepower, offering a balanced blend of power and efficiency for a luxury sedan.

- The engine has been refined over generations, with fewer issues compared to earlier iterations of the 2.8L V6 (e.g., the AU1C16). It is less prone to carbon buildup and oil consumption problems that plagued some earlier models.

2. **Transmission Options**

- If equipped with an **8-speed Tiptronic automatic**, it provides smooth shifting and good fuel economy for a V6 sedan. The transmission is robust and less likely to fail prematurely compared to older 6-speed automatics.

- Manual transmission models (if available) offer better driver engagement and lower maintenance costs, though they are rarer in this generation.

3. **Reliability and Longevity**

- The AU1C18 engine is generally reliable if maintained properly. Many owners report trouble-free operation beyond 150,000 miles with regular servicing.

- The 2018 model year benefits from updates to the **Audi Space Frame (ASF)** chassis, which improves structural integrity and safety compared to earlier years.

4. **Comfort and Ride Quality**

- The A6 is known for its **quiet cabin**, premium materials, and refined ride. The suspension is well-tuned for both highway comfort and handling precision.

- Features like **adaptive damping** (if equipped) enhance comfort on rough roads.

5. **Safety Features**

- Standard safety tech includes **Audi Pre Sense (collision avoidance), adaptive cruise control, lane-keep assist, and multiple airbags**. The 2018 model also includes **Audi Traffic Light Assist** and **Audi Park Assist** in higher trims.

- The **Euro NCAP** ratings for this generation are strong, with good protection in frontal and side impacts.

6. **Resale Value**

- Audi A6s hold their value reasonably well, especially compared to some luxury competitors. A well-maintained 2018 model should retain a decent resale value over time.

7. **Roof Motor (Sunroof/Electric Sunroof)**

- The presence of a **functional roof motor** (for the sunroof) is a positive indicator that the vehicle has been maintained or at least not neglected. A faulty roof motor is a common issue in older Audis, so its working condition suggests the owner took care of it.

8. **Aftermarket and Parts Availability**

- As a mid-size luxury sedan, parts for the A6 are widely available, and labor costs are reasonable compared to high-end Audi models like the S6 or A8.

---

#### **Cons**

1. **Maintenance Costs**

- Audi is a premium brand, and **labor and parts costs are higher** than for mainstream brands. Regular maintenance (oil changes, timing belt, spark plugs) will add up.

- The **timing belt** (if not already replaced) should be checked though the AU1C18 is interference-engineered, a failed belt can cause catastrophic engine damage.

2. **Electrical Gremlins**

- Faulty sensors (e.g., camshaft, crankshaft, or mass airflow sensor).

- Infotainment glitches (if equipped with **MMI Navplus**).

- Window regulators or door lock failures.

- These issues are often fixable but can be costly if not addressed promptly.

3. **Fuel Economy**

- The 2.8L V6 is not the most efficient engine. Expect around **18 22 MPG combined** (city/highway), which is decent for a V6 sedan but not great for long-distance driving.

- If you prioritize fuel efficiency, a **2.0L TFSI (turbocharged) or 3.0L TDI diesel** would be better choices.

4. **Depreciation**

- While the A6 holds value better than some luxury cars, it still depreciates significantly in the first few years. If you plan to keep it long-term, this is less of a concern, but if you need to sell soon, the loss in value may be noticeable.

5. **Potential Engine Issues (Less Common but Possible)**

- Some owners report **oil consumption** or **carbon buildup** in the AU1C18, though these are less frequent than in earlier 2.8L engines. Regular oil changes and occasional carbon cleaning (if symptoms appear) can mitigate this.

- **Coolant leaks** from the **thermostat housing or water pump** have been reported in some models. Inspecting these components is wise before purchase.

6. **Interior Wear (If Not Well-Maintained)**

- The cabin can show signs of wear if the car has been driven aggressively or not cleaned regularly. Check for **cracked plastic trim, faded upholstery, or worn-out seats**.

- If the car has a **leather interior**, ensure there are no tears or excessive odors (which could indicate mold or neglect).

7. **Transmission Shift Quality (If Not Well-Serviced)**

- Some owners report **rough shifting** in the 8-speed Tiptronic if the transmission fluid hasn t been changed. Audi recommends **transmission fluid changes every 60,000 80,000 miles**, but many dealerships skip this unless prompted.

8. **Noise, Vibration, and Harshness (NVH) Issues**

- A few owners mention **unusual noises** (e.g., rattles from the engine bay, suspension creaks) that may require attention. A thorough pre-purchase inspection is essential.

---

### **Key Considerations Before Purchase**

1. **Service History**

- Verify that the **timing belt, water pump, and transmission fluid** have been serviced on time.

- Check for **oil changes every 7,500 10,000 miles** (Audi s recommended interval).

- Look for **recalls** and ensure they were addressed.

2. **Pre-Purchase Inspection (PPI)**

- **Engine bay** (for leaks, worn belts, or unusual noises).

- **Transmission** (for smooth shifting and no slipping).

- **Suspension** (for worn shocks, bushings, or struts).

- **Electrical system** (test all lights, sensors, and infotainment).

- **Roof motor** (ensure it operates smoothly without resistance).

3. **Test Drive**

- Listen for **unusual noises** (whining from the transmission, ticking from the engine).

- Check for **smooth acceleration and braking**.

- Test the **sunroof** (ensure it opens/closes without hesitation).

4. **Price Comparison**

- Compare the asking price to **similar 2018 A6s** in your area (use sources like **Kelley Blue Book, Edmunds, or local classifieds**).

- Be wary of **lowball prices** they may indicate hidden issues.

5. **Alternative Options**

- If fuel efficiency is a priority, consider a **2.0L TFSI (e.g., A6 2.0T)** or a **3.0L TDI diesel** (if you drive long distances).

- If you want a more modern Audi, a **2019 model** may offer better tech and reliability.

---

### **Final Recommendation**

You find a **well-documented, low-mileage example** (under 80,000 miles) with a **complete service history**.

The **pre-purchase inspection confirms no major mechanical or electrical issues**.

You are prepared for **higher maintenance costs** and can budget for potential repairs (e.g., transmission fluid, timing belt, sensors).

You prioritize **comfort, luxury, and reliability** over fuel efficiency or cutting-edge tech.

The price is **fair** compared to similar models in your region.

The **service records are incomplete or missing**.

The **car has high mileage (over 120,000 miles) without proof of maintenance**.

There are **known issues** (e.g., oil consumption, transmission slippage, electrical faults) that the seller refuses to address.

The **price is significantly inflated** without justification (e.g., rare trim, low miles).

---

### **Conclusion**

The **2018 Audi A6 2.8L (AU1C18) is a solid choice** for buyers who want a **reliable, comfortable, and well-equipped luxury sedan** without the complexity of a turbocharged or diesel engine. Its **AU1C18 V

Details:

Free shipping only applies to items you keep. If something is wrong with an order, we certainly do want to help you. Q3 2018 Roof Motor 10643980: REAR SUNROOF MOTOR 8U0959591A Included: Hassle-free 1 Year Warranty Our Part #: 10643980. Please compare part numbers BEFORE purchasing.

Easy to find parts that don't require a mechanics knowledge. Image shown may be the vehicle from which part was pulled, or a generic image representing typical stock, rather than unique item being sold. Quality, Assured Parts All are Quality Tested Inspected. Please disregard other fitment charts they may not be correct.

Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Very happy customer, excellent value and service. Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. More Parts: 1 Year Warranty.

part #: 8u0959591 prices

• $119.99-$125.00

specifications sunroofconverti:

• for models: Q3
• for makes: Audi
• for years: 2018
• mpn: 8u0-959-591-a
• part type: Motor
• conditions options: Rear Sunroof Motor
• genuine oem: Yes
• ipn: 628.au1c18
• warranty: 1 Year

shipping sunroofconverti:

• type: Fixed
• service: Flat Rate Freight
• cost: $20.00
• class: Freight

offer sunroofconverti:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: March 25, 2026
• best offers: True
• quantity: 1

returns sunroofconverti:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

seller sunroofconverti:

• rating: 97.2%
• city: Rancho Cordova, California
• # reviews: 23210

payments sunroofconverti:

• wallet: Google-pay
• other
• credit card: Discover

general sunroofconverti:

• condition: Used
• Exterior Parts Accessories > Roofs, Tops Sunroofs > Sunroofs Parts

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