fits model: S3, A3. make: Audi. year: 2017–2020.

( Manufacturer Part Number: OFA18001727 ), ( Light Color: Red ), ( Mounting Style: Screws ), ( Items Included: Bulbs ), ( Vintage Part: No ), ( Placement On Vehicle: Rear ), ( Bulb Shape Code: C5w ), ( Type: Third Brake Light Assembly ), ( Oe/oem Part Number: 4g5 945 097 ), ( Voltage: 12 V ), ( Housing Color: Black ), ( Features: Dot-certified ), ( Lighting Technology: Led )
The **Audi RS3 (8V) 4.0L TFSI (097/0945)** from the 2017 2020 model years represents the pinnacle of Audi s high-performance S-line engineering, blending razor-sharp handling, cutting-edge technology, and a relentless 4.0-liter twin-turbocharged V8 that delivers a thunderous 450 horsepower and 369 lb-ft of torque. This third-generation RS3, codenamed the **8V**, marks a bold departure from its predecessors by abandoning the traditional 3.0L V6 in favor of a high-revving, all-aluminum V8 a choice that not only enhances power delivery but also introduces a more engaging, exhaust-note-rich driving experience. The 4G5 engine, paired with a seven-speed S tronic dual-clutch transmission, ensures lightning-fast gear shifts and seamless power transfer, while the optional **quattro permanent all-wheel-drive system** distributes torque dynamically for unmatched traction in both straight-line speed and cornering.
Mechanically, the RS3 is built on the **PQ4 platform**, shared with the A3 and S3, but heavily modified to accommodate its V8 powerplant and aggressive suspension tuning. The **adaptive air suspension** with **quattro dynamic** adjusts ride height and damping in real-time, allowing the car to transition seamlessly from a plush, road-hugging stance to a locked-down, track-ready demeanor with the push of a button. The **multi-link rear suspension** and **double-wishbone front suspension** are meticulously tuned for precision, while the **19-inch or 20-inch alloy wheels** (depending on the trim) shod with **Michelin Pilot Sport Cup 2** or **Pirelli P Zero** tires provide exceptional grip and a near-silent road presence. For those seeking even more performance, the **RS3 Sportback** variant offers a slightly lower curb weight and a more aggressive stance, while the **RS3 Cabriolet** delivers the same V8 fury with the added thrill of an open-top experience.
Inside, the RS3 is a masterclass in Audi s **Virtual Cockpit** and **MMI Navi Plus** infotainment system, featuring a **12.3-inch digital instrument cluster** and a **10.1-inch touchscreen** that controls everything from navigation to climate control. The **Virtual Cockpit** offers customizable layouts, including a **speedometer-only mode** for race-day focus or a **full analog gauge display** for purists. The **MMI system** integrates Apple CarPlay, Android Auto, and a **premium sound system** (upgradable to **Bose or Bang & Olufsen**) that fills the cabin with rich, immersive audio. The **sporty three-spoke **M** steering wheel**, wrapped in Alcantara or leather, houses quick-access controls for cruise, phone, and media, while the **sport seats** (available in **Alcantara, leather, or perforated leather**) feature **side bolsters and integrated heating** for both driver and passenger. The **ambient lighting** system allows for customizable cabin illumination, adding a touch of luxury to the performance-oriented interior.
Audi s **RS3** is not just a car; it s a statement of intent a machine that demands attention with its **distinctive kidney grille, aggressive front bumper, and sleek, aerodynamic lines**. The **LED matrix headlights** with **adaptive high-beam assist** ensure visibility is never compromised, while the **rear LED taillights** and **RS-specific badging** reinforce its identity. The **carbon-fiber hood** (on select models) reduces weight while maintaining rigidity, and the **active rear spoiler** deploys at high speeds to enhance downforce and stability. Underneath, the **RS3 s chassis** is reinforced with **stiffened subframes and a lower center of gravity**, making it one of the most balanced and responsive grand tourers in its class. Whether navigating a twisty backroad or carving through a corner at the limit, the RS3 delivers a **precise, engaging, and exhilarating** driving experience that few cars can match.
For those who crave even more, the RS3 offers **optional performance upgrades**, including **launch control, track mode, and a limited-slip differential (LSD)** for enhanced traction. The **RS3 s 4.0L V8** revs enthusiastically to **7,200 RPM**, producing a **thunderous exhaust note** that grows louder as the redline approaches, making it one of the most engaging engines in its segment. With a **0-60 mph time of just 3.9 seconds** (in Sport Quattro trim) and a **top speed of 155 mph**, this car is a true performance grand tourer capable of dominating both the street and the track. The **RS3 s blend of luxury, technology, and raw power** makes it a standout choice for Audi enthusiasts who demand the best without compromise. Whether cruising on a coastal highway or pushing the limits at a racetrack, the RS3 4.0L V8 is a testament to Audi s relentless pursuit of perfection in performance.
### **Pros and Cons of Buying a 2017 2020 Audi A3 (8V, 4G5) RS3/S3 (OFA18001727, 945.097)**
#### **Overview**
The **2017 2020 Audi A3 (8V, 4G5) RS3 and S3** are high-performance variants of the compact Audi A3, built on the **MQB A0 platform** with a **2.0L turbocharged four-cylinder engine** (TFSI) paired with a **7-speed S tronic dual-clutch transmission**. The **RS3** is the sportier, more aggressive twin, while the **S3** offers a balanced performance-oriented package. Both models share many mechanical components but differ in power delivery, suspension tuning, and styling.
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### **Pros**
#### **1. Strong Performance & Driving Dynamics**
- **RS3:** Delivers **306 320 hp (292 316 kW)** and **350 369 lb-ft (475 500 Nm)** of torque, capable of **0 60 mph in 4.0 4.3 seconds** (depending on trim). The **quattro AWD system** provides excellent traction in all conditions.
- **S3:** Offers **272 292 hp (258 270 kW)** and **295 309 lb-ft (400 420 Nm)**, with **0 60 mph in 4.8 5.2 seconds**. Still quick for a compact car and more refined than the RS3.
- **Sharp handling** with **adaptive air suspension** (on RS3) and **sport-tuned dampers** (S3). The **quattro system** enhances cornering grip.
- **Quick-shifter S tronic transmission** (7-speed dual-clutch) provides near-manual shifting with minimal lag, making it engaging for spirited driving.
#### **2. Premium Interior & Build Quality**
- **High-quality materials** (aluminum, soft-touch plastics, stitching) in the **RS3** and **S3**, though the **S3 s interior is slightly more practical** (less aggressive styling).
- **Large touchscreen infotainment** (8" or 10" depending on trim) with **Audi MMI navigation**, **Apple CarPlay**, and **Android Auto**.
- **Heated/ventilated seats** (standard on RS3, optional on S3), **ambient lighting**, and **premium audio systems** (Bose or Harman Kardon).
- **Ergonomic driver s seat** with excellent adjustability and support, contributing to long-distance comfort.
#### **3. Reliability & Maintenance (Compared to Competitors)**
- The **2.0L TFSI engine** (used in RS3/S3) is **more reliable than the older 3.0L V6** found in earlier A3 RS models, though it is **not bulletproof** and requires **regular maintenance**.
- **Dual-clutch transmission (S tronic)** is **more durable than older CVTs** but still **more prone to failure than conventional automatics** if not maintained properly.
- **Audi s quattro system** is robust, but **transfer case fluid changes are critical** (often neglected, leading to premature failure).
- **Turbocharged engines** are **more complex than naturally aspirated ones**, meaning **higher long-term maintenance costs** (turbo upgrades, fuel system checks, etc.).
#### **4. Resale Value & Brand Prestige**
- Audi retains **strong resale value** compared to many German rivals, though **not as high as BMW or Mercedes** in the same segment.
- The **RS3/S3 badge** adds **desirability**, making these models **easier to sell later** than a standard A3.
- **Audi s reputation for luxury and performance** helps maintain perceived value.
#### **5. Safety & Technology Features**
- **Standard safety tech** includes **Audi Pre Sense (collision avoidance), adaptive cruise control, lane-keep assist, and blind-spot monitoring**.
- **High-strength steel body structure** with **multiple airbags** ensures strong crash protection.
- **Available driver-assistance systems** (e.g., **traffic jam assist, parking pilot**) make daily driving more convenient.
#### **6. Sporty & Exclusive Styling**
- **RS3:** **Aggressive front grille, carbon fiber accents, aggressive LED lighting, and a sportier stance** make it stand out.
- **S3:** **More refined than the RS3** but still **distinctive with a sporty rear spoiler and 19" alloy wheels**.
- **Exclusive badging and trim options** (e.g., **RS3 "Sport Design" package, S3 "Performance" trim**) add to appeal.
#### **7. Practicality (Compared to Rivals)**
- **S3 is more practical than the RS3** due to **softer suspension tuning, quieter cabin, and slightly more rear legroom**.
- **RS3 s adaptive air suspension** can be adjusted for **comfort or sport**, though it **wears out over time**.
- **Both models have decent cargo space (12.7 cu ft behind rear seats, 45.3 cu ft with seats folded)**, though **not as spacious as a Golf R or BMW 2 Series**.
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### **Cons**
#### **1. High Maintenance Costs**
- **Turbocharged engines** require **regular maintenance** (turbo upgrades, fuel system cleaning, oil changes every **5,000 7,500 miles**).
- **Dual-clutch transmission (S tronic)** is **more expensive to repair than a conventional automatic** (expect **$3,000 $5,000 ** for a full rebuild).
- **Quattro AWD system** needs **transfer case fluid changes** (often **forgotten**, leading to **$1,500 $2,500 repairs** if neglected).
- **Audi dealership labor rates** are **higher than independent shops**, increasing repair costs.
#### **2. Transmission Issues (S tronic)**
- **Common problems:**- **Slipping gears** (especially in cold weather).
- **Rough shifting** (if fluid is old or clutches are worn).
- **Electrical gremlins** (MMI system freezes, gear selection delays).
- **Notoriously finicky** requires **frequent fluid changes** (every **30,000 40,000 miles**).
- **Some owners report premature failure** ( 100,000 miles), though **proper maintenance can extend lifespan**.
#### **3. Engine Reliability Concerns**
- **2.0L TFSI engines** in these models are **generally reliable but not as durable as a 3.0L V6** (pre-2017).
- **Potential issues:**- **Carbon buildup in intake valves** (requires **intake cleaning every 60,000 80,000 miles**).
- **Turbocharger failures** (if oil changes are skipped).
- **Water pump and timing chain issues** (less common but possible).
- **Not as robust as a BMW N57 or Mercedes M276** in the same segment.
#### **4. Comfort vs. Sportiness Trade-Off**
- **RS3 is harder to live with daily** due to:- **Stiffer suspension** (even in "comfort" mode).
- **Louder cabin** (more road noise, exhaust noise).
- **Less refined ride** (body clunks, wind noise at highway speeds).
- **S3 is more comfortable** but **less engaging** some buyers may find it **too soft** for spirited driving.
#### **5. Fuel Economy & Running Costs**
- **RS3:** **18 20 MPG combined** (city/highway).
- **S3:** **22 24 MPG combined**.
- **High-performance models consume more fuel** than standard A3s, increasing **long-term ownership costs**.
- **Insurance premiums** will be **higher** than a non-RS/S3 A3 (expect **$1,200 $1,800/year** for full coverage).
#### **6. Depreciation & Market Saturation**
- **Audi s resale depreciation is steep** these models lose ** 50% of value in 5 years**.
- **High demand for used RS3/S3s** means **competitive pricing**, but **not as strong as a BMW M2 or Porsche 718**.
- **Many used examples exist**, so **buyers must inspect thoroughly** to avoid lemon.
#### **7. Infotainment & Tech Quirks**
- **MMI system can be slow and glitchy** (especially on older software).
- **Apple CarPlay/Android Auto integration is decent but not seamless** (some lag, occasional disconnects).
- **No wireless CarPlay/Android Auto** (unlike newer models).
#### **8. Limited Off-Road Capability**
- While **quattro AWD is strong**, the **A3 s suspension is not designed for rough
Came off a 2019 Audi RS3 with 30k miles.