BMW 63-31-9-365-480 Reading Lmp X3-X4

( Manufacturer Part Number: 63-31-9-365-480 ), ( Model: X3-X4 ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2018 2019 2020 2021 2022 2023 2024 ), ( Parts Included: Only Part Reference 12 On The Diagram Is Included )

Review BMW Genuine Reading Lmp Assembly fits 2018–2024

The **BMW N74 63-31-9-365-480** engine, produced between **2018 and 2024**, is a high-performance, twin-turbocharged **6.5-liter V12** powerplant designed for the **M Division s flagship models**, most notably the **BMW M8 Competition** and **M8 Gran Coupe**. This engine represents the pinnacle of BMW s engineering prowess, blending cutting-edge technology with the timeless elegance of a naturally aspirated V12 while delivering an exhilarating blend of raw power and refined efficiency. The **N74** is the successor to the legendary **N63** and **N64** engines, incorporating significant advancements in turbocharging, fuel injection, and exhaust gas recirculation to meet modern emissions standards without sacrificing performance.

At its core, the **N74** features a **6.5-liter displacement** with a **90-degree V12 architecture**, producing a staggering **625 horsepower (463 kW)** and **750 lb-ft (1,018 Nm) of torque** in its most powerful iterations, such as the **M8 Competition**. This output is achieved through a sophisticated **dual-turbocharged** system, where two **electric turbochargers** (ETC) work in tandem with conventional turbochargers to eliminate lag and ensure instant throttle response. The **electric turbos** spin up rapidly, providing near-instantaneous boost, while the **mechanical turbos** handle the bulk of the low-end and mid-range power delivery. This hybrid approach not only enhances performance but also improves fuel efficiency compared to traditional turbocharged V12s.

The **N74** employs **direct and port fuel injection**, with **high-pressure direct injection (HPDI)** delivering precise fuel metering for optimal combustion, while **port injection** ensures smooth cold starts and improved throttle response. The engine also features **BMW s Valvetronic variable valve lift system**, which dynamically adjusts valve lift and timing to optimize power delivery across the entire RPM range. Additionally, the **N74** incorporates **BMW s Twin Scroll Turbocharging** technology, where exhaust gases are split into two separate scrolls one for each turbo to reduce pulsation and improve efficiency. The engine s **high-pressure direct injection system** operates at pressures exceeding **4,000 psi (275 bar)**, enabling precise fuel atomization and enhanced combustion efficiency.

To meet **Euro 6d-TEMP emissions regulations**, the **N74** integrates **BMW s Selective Catalytic Reduction (SCR) system**, which uses **AdBlue** to reduce nitrogen oxide emissions. While this adds complexity, it allows the engine to maintain its high performance while complying with stringent environmental standards. The **N74** also features an **active exhaust system** with **variable geometry**, which adjusts the exhaust flow to optimize both performance and emissions. The engine s **oil and coolant systems** are similarly advanced, with **high-flow cooling** and **optimized lubrication** to prevent overheating under extreme loads, a common concern in high-output V12s.

The **N74** is paired with BMW s **ZF 8HP90 eight-speed automatic transmission**, which is specifically tuned for high-performance applications. The transmission features **paddle shifters**, **launch control**, and **adaptive shift logic** to ensure seamless power delivery, whether in **Sport, M, or Manual mode**. The **M8 Competition** variant further enhances this setup with a **limited-slip differential (LSD)** and **adaptive dampers** for a more engaging and responsive driving experience.

Under the hood, the **N74** is housed in a **lightweight aluminum block** with **forged crankshaft and connecting rods**, ensuring durability and high-revving capability. The engine s **redline sits at 7,000 RPM**, allowing for a thrilling, high-revving experience that harks back to BMW s classic V12s. The **N74** also incorporates **BMW s M Hybrid system** in some models, where a **48-volt mild hybrid system** assists the V12 with torque boost and regenerative braking, further improving efficiency without compromising performance.

Visually, the **N74** is distinguished by its **dual-turbo setup**, **large intercoolers**, and **striking exhaust manifolds**, which contribute to its imposing yet elegant appearance. The engine s **carbon-fiber hood** (in M8 Competition models) not only reduces weight but also enhances aerodynamics, while the **M-specific grille and LED lighting** reinforce its high-performance identity. The **N74** is not just a powerhouse; it is a masterclass in **BMW s M Division s commitment to blending raw power with precision engineering**, making it one of the most sophisticated and desirable V12 engines of the 2010s.

Whether in the **M8 Competition**, **M8 Gran Coupe**, or other high-end BMW models, the **N74 63-31-9-365-480** delivers an **unforgettable driving experience**, combining **thunderous acceleration**, **smooth power delivery**, and **luxurious refinement**. It stands as a testament to BMW s ability to push the boundaries of automotive engineering while maintaining the brand s signature blend of performance and sophistication.

**Pros and Cons of Buying a BMW 6 Series Gran Coupe (G31, 2018 2024) with an LMP (Left-Hand Drive) in the UK Market**

### **Pros**

**1. Premium Build Quality and Luxury**

The BMW 6 Series Gran Coupe is renowned for its meticulous craftsmanship, high-end materials, and refined interior. The cabin features premium leather upholstery, ambient lighting, and advanced infotainment systems (iDrive 8 or 9, depending on the year), which enhance the driving and passenger experience. The attention to detail in the cabin such as stitching, ergonomics, and sound insulation sets it apart from many competitors.

**2. Strong Performance and Driving Dynamics**

The 630i (N63 engine) delivers a balanced blend of power and efficiency, producing **382 429 horsepower** (depending on the year and variant) and **450 520 Nm of torque**. The twin-turbocharged inline-six engine (N63) is smooth, responsive, and capable of accelerating from 0 60 mph in around **4.5 5.2 seconds** in the more powerful models. The Gran Coupe s shorter wheelbase compared to the sedan improves handling, making it more agile and engaging to drive, particularly in spirited or twisty roads.

**3. Spacious and Practical Gran Coupe Body Style**

Unlike the traditional sedan, the Gran Coupe offers a **four-door, five-seat layout** with a more practical rear passenger space. The roofline is lower than a wagon or estate, giving it a sportier aesthetic while retaining rear legroom comparable to some luxury SUVs. This makes it an attractive choice for those who want luxury and practicality without sacrificing style.

**4. Advanced Technology and Connectivity**

The 6 Series Gran Coupe comes equipped with the latest BMW infotainment systems, including **iDrive 8 or 9**, depending on the model year. Features such as **Apple CarPlay, Android Auto, wireless charging, a 10.25-inch or larger touchscreen, and advanced driver-assistance systems (e.g., adaptive cruise control, lane-keeping assist, and semi-autonomous driving modes)** are standard or available as options. The **Head-Up Display (HUD)** and **Digital Cockpit** further enhance the driving experience.

**5. Comfort and Refinement**

The Gran Coupe is designed for both performance and comfort. The suspension is well-tuned to absorb road imperfections while maintaining a sporty demeanor. The **quiet cabin** and **premium sound system** (often a **Bowers & Wilkins or Harman Kardon setup**) make long journeys enjoyable. Heated and ventilated seats, massagers, and climate control further contribute to its luxury appeal.

**6. Resale Value and Prestige**

BMW retains strong resale value, particularly for well-maintained models. The 6 Series Gran Coupe, being a relatively new body style (introduced in 2017), holds its value better than older BMW sedans. Additionally, owning a BMW carries prestige, and the 6 Series is often seen as a status symbol in the luxury market.

**7. Customization and Personalization Options**

BMW offers a wide range of **exterior and interior customization options**, including **M Sport packages, kidney grille designs, alloy wheel choices, and interior color variations**. This allows buyers to tailor the vehicle to their preferences, whether for a sportier look or a more refined aesthetic.

**8. Safety Features**

- **City Safety** (automatic emergency braking)

- **Lane Departure Warning**

- **Adaptive Cruise Control**

- **Blind Spot Monitoring**

- **Rear Cross-Traffic Alert**

- **High-beam Assistant**

- **Multiple airbags and advanced crash protection systems**

These features ensure a high level of safety, making it a reliable choice for daily driving.

---

### **Cons**

**1. High Cost of Purchase and Ownership**

The 6 Series Gran Coupe is **not a budget-friendly** vehicle. Even used models from 2018 2024 will command a premium price, especially in the UK market where demand for luxury cars remains strong. **Depreciation is a concern**, though BMWs hold value relatively well compared to some rivals.

**Maintenance and Servicing Costs** are another significant drawback. BMWs are **expensive to service**, with parts and labor costs often **20 30% higher** than mass-market brands. The **N63 engine** (used in the 630i) has had some **reputation issues** related to **carbon buildup, oil consumption, and turbocharger failures**, particularly in earlier models (pre-2020). While BMW has addressed many of these concerns with updates, **regular servicing is essential** to avoid costly repairs.

**Insurance Premiums** will also be high due to the car s value, performance, and luxury status.

**2. Fuel Consumption and Running Costs**

The 630i (N63) is **not the most efficient** BMW engine. In real-world driving, expect **around 10 12 L/100km (24 26 mpg)** in combined cycling, which translates to **high fuel costs** compared to diesel or hybrid alternatives. While the **xDrive AWD models** improve off-road capability, they further reduce efficiency.

**3. N63 Engine Reliability Concerns (Pre-2020 Models)**

- **Carbon buildup** (requiring expensive valve cleaning every **60,000 80,000 miles**).

- **Oil consumption** (some owners report **1L per 1,000 2,000 miles** in severe cases).

- **Turbocharger failures** (especially in high-performance variants).

- **Exhaust manifold cracks** (common in early models).

**Post-2020 models** (especially 2021 ) have seen **improvements**, but **pre-2020 N63 engines still carry risk**. Always **check service history** and consider **carbon cleaning** if buying a pre-2020 model.

**4. Limited Practicality Compared to Sedans or SUVs**

While the Gran Coupe is more practical than a sedan, it **still lacks the cargo space of a wagon or estate**. The **boot capacity is around 400 450 liters**, which is **less than a BMW 5 Series Touring (530d xDrive, 580L)**. If you frequently carry large items (e.g., surfboards, luggage), you may find it restrictive.

**5. Depreciation and Market Saturation**

The 6 Series Gran Coupe is a **relatively new model**, but the luxury market is **crowded with alternatives** (Audi A6 Avant, Mercedes E-Class Shooting Brake, Volvo V90, Lexus LS). This can lead to **strong competition in the used market**, potentially driving prices down over time.

**6. Weight and Fuel Economy Trade-Off**

The Gran Coupe is **heavier than smaller BMWs** (e.g., 3 Series or 4 Series), which impacts **acceleration and fuel efficiency**. While the **xDrive AWD models** improve traction, they also **reduce efficiency** compared to rear-wheel-drive versions.

**7. Resale Value Depends on Demand**

While BMWs hold value well, the **resale market for luxury cars can be volatile**. Economic downturns or shifts in consumer preferences (e.g., towards hybrids or EVs) could affect long-term resale value.

**8. Limited Off-Road Capability**

Unlike the **xDrive AWD models**, the Gran Coupe is **not designed for serious off-roading**. While it handles light gravel or snow well, it **lacks the ground clearance and protection** of an SUV or estate.

---

### **Conclusion**

The **BMW 6 Series Gran Coupe (G31, 2018 2024) is a compelling choice** for buyers seeking a **luxurious, sporty, and practical** premium car. It excels in **build quality, driving dynamics, technology, and refinement**, making it one of the most desirable BMWs in its segment. However, **high purchase and ownership costs, potential engine reliability issues (especially pre-2020), and fuel inefficiency** are significant drawbacks that must be carefully considered.

**For whom is it ideal?**

- Buyers who prioritize **luxury, performance, and driving enjoyment** over extreme practicality.

- Those who can afford **higher insurance, servicing, and fuel costs**.

- Individuals who prefer a **sporty yet comfortable** car with a **lower roofline than a sedan**.

- People who value **BMW s prestige and resale value**.

**For whom is it less suitable?**

- Budget-conscious buyers or those who cannot afford **high maintenance costs**.

- Families needing **maximum cargo space** (consider a **5 Series Touring or Audi A6 Avant** instead).

- Drivers who prioritize **fuel efficiency** (a **hybrid or diesel model** may be better).

- Those concerned about **N63 engine reliability** (stick to **post-2020 models**

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. BMW Parts Hub support. Front, without ambient lighting.

Do not disseminate, distribute or copy through any medium whatsoever. Electrical parts are not returnable.

part #: 63319365480 prices

• $66.50-$649.95

specifications interiorlightsot:

• for makes: Bmw
• for years: 2018-2024
• mpn: 63-31-9-365-480
• model: X3-x4
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2018 2019 2020 2021 2022 2023 2024
• parts included: Only Part Reference 12 On The Diagram Is Included

seller interiorlightsot:

• rating: 99.1%
• city: West Chester, Pennsylvania
• # reviews: 570

general interiorlightsot:

• condition: New
• Car Truck Parts Accessories > Lighting Lamps > Interior Light Assemblies

returns interiorlightsot:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer interiorlightsot:

• sold: 0
• availability: In Stock
• started: March 1, 2026
• options: Ship-to-home
• quantity: 4

payments interiorlightsot:

• credit card: Diners-club
• wallet: Paypal
• other

shipping interiorlightsot:

• service: UPS Ground
• transit: 4-10 Days
• cost: $23.96
• type: Fixed
• carrier: UPS
• class: Standard

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