fits make: Bmw.

( Manufacturer Part Number: 51-16-2-347-200 )
The **BMW 51-16-2-347-200 Cup**, also known as the **BMW N52 3.0L Engine Oil Pump Cover Gasket Kit**, is a precision-engineered replacement part designed to maintain the optimal performance and longevity of the N52 inline-six engine found in select BMW models, including the 5 Series (E60/E61), 6 Series (E63/E64), and the X5 (E70) from the mid-2000s. This high-quality gasket kit is meticulously crafted to ensure a perfect seal between the oil pump cover and the engine block, preventing leaks that could compromise lubrication efficiency and engine health. The kit typically includes a durable rubber gasket, often reinforced with silicone or high-temperature-resistant materials, to withstand the demanding conditions of high-performance driving and extended use. Engineered to fit seamlessly with the original mounting hardware, this gasket is designed to resist warping, cracking, or degradation over time, even under the thermal and mechanical stresses of modern turbocharged applications. Whether addressing a persistent oil leak, preparing for a rebuild, or upgrading as part of a maintenance routine, this gasket kit offers a reliable solution that adheres to BMW s stringent engineering standards. Its compatibility with aftermarket oil pumps and modifications further enhances its versatility, making it a trusted choice for both professional mechanics and dedicated enthusiasts seeking to preserve their engine s integrity.
### Pros and Cons of Buying a BMW 5 Series (F10/F11/F12/F13) E90/E91/E92/E93 (Cup Model, 200i/20d/347i/347d)
#### **Overview**
The BMW 5 Series (F10/F11/F12/F13 generation, often referred to as the "New Class" or "E60 successor") is a well-regarded executive sedan with a strong reputation for performance, luxury, and driving dynamics. The **200i (N54 engine), 20d (N57 diesel), 347i (N63 V8), and 347d (N63 V8 diesel)** variants are particularly popular among enthusiasts and professionals alike. Below is a detailed breakdown of the advantages and disadvantages of purchasing one, followed by a conclusion and recommendation.
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### **Pros**
1. **Premium Driving Experience**
- The 5 Series is renowned for its **sharp handling, precise steering, and engaging driving dynamics**, making it one of the most fun executive cars to drive.
- The **N54 (200i) and N63 (347i/347d) engines** deliver strong performance with responsive throttle and well-tuned suspension settings.
- The **M Sport package** (if available) enhances track-ready characteristics, including stiffer suspension, sportier steering, and a more aggressive exhaust note.
2. **Strong Engine Options**
- **N54 (200i):** A twin-turbo inline-6 (3.0L) producing **258 300 hp** (depending on year and tuning) with excellent mid-range torque. It s reliable if maintained properly and offers great potential for tuning.
- **N57 (20d):** A **3.0L diesel V6 twin-turbo** delivering **286 313 hp** and **560 680 lb-ft of torque**, making it one of the most efficient and capable diesel engines of its time. It excels in towing and long-distance driving.
- **N63 (347i/347d):** A **4.4L V8 twin-turbo** producing **400 444 hp** (gas) and **400 444 hp (diesel)** with **553 680 lb-ft of torque**. The V8 offers **luxury, power, and a smooth ride**, making it ideal for those who want both performance and comfort.
- All engines benefit from **direct injection, turbocharging, and advanced fuel management**, though the N54 and N63 have some known reliability quirks.
3. **Luxury and Comfort**
- The **interior is one of the best in its class**, with high-quality materials, ergonomic controls, and a **spacious cabin** (especially the 5 Series Gran Turismo, which is a wagon).
- **Advanced infotainment (iDrive)** with navigation, Bluetooth, and premium audio options (Harman Kardon, Bang & Olufsen).
- **Comfortable seating** with excellent visibility and a **quiet cabin** (especially the diesel models).
4. **Reliability (With Proper Maintenance)**
- The **N57 diesel (20d) is one of the most reliable BMW engines** if serviced regularly, with fewer major issues than the N54 or N63.
- The **N54 (200i) is tuner-friendly** but requires **oil changes every 5,000 7,500 miles** (synthetic) and **valve cover gasket replacements** ( $500 $800) to prevent oil leaks.
- The **N63 V8 is powerful but complex** common issues include **carbon buildup (fuel system), turbo failures, and oil consumption** (especially in early models). A **full service (valves, injectors, turbo) is recommended at 60,000 80,000 miles**.
- **Transmissions (ZF 6HP21/26)** are robust but benefit from **fluid changes every 60,000 miles** to prevent wear.
5. **Resale Value**
- The 5 Series holds its value **better than most luxury sedans**, especially the **347i/347d and 20d models**.
- The **M5 (if available in your market)** is a premium model with even stronger resale value.
6. **Aftermarket & Tuning Potential**
- The **N54 is a tuner s dream** easy to modify with **turbo upgrades, cold air intakes, and exhaust systems** to push **400 hp** without major engine work.
- The **N63 V8 can be tuned to 500 hp** with **stage 1 2 kits**, though it requires **fuel system upgrades** (injectors, fuel pump) to handle higher power.
- **Performance parts** (suspension, brakes, wheels) are widely available, making it easy to enhance handling.
7. **Safety & Technology**
- **Standard safety features** include **stability control, multiple airbags, and advanced driver aids** (adaptive cruise, lane departure warning).
- **Available tech** includes **head-up display, parking sensors, and premium sound systems**.
8. **Versatility**
- The **5 Series is available as a sedan (530i/535d) or Gran Turismo (wagon)**, offering more cargo space if needed.
- The **347d is one of the best diesel performance cars**, capable of **0-60 mph in 4.5 seconds** while being efficient ( 25 MPG highway).
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### **Cons**
1. **Maintenance Costs**
- BMWs are **notoriously expensive to maintain**, especially for non-M models.
- **Common issues:**- **N54 (200i):** Oil leaks (valve cover gaskets, oil filter housing gasket), **carbon buildup** (requires fuel system service every 60,000 80,000 miles).
- **N63 (347i/347d):** **Turbo failures, oil consumption, and carbon buildup** are major concerns. A **full service is $1,500 $2,500**.
- **Transmission issues** (grinding in gear changes) can occur if fluid isn t changed regularly.
- **Parts and labor** are **significantly more expensive** than German rivals (Mercedes, Audi) or even some Japanese luxury cars.
2. **Reliability Concerns (Especially N54 & N63)**
- The **N54 is prone to oil leaks** if not maintained properly. **Carbon buildup** (from direct injection) can reduce performance if not addressed.
- The **N63 V8 is powerful but complex** **turbo failures, oil consumption, and fuel system issues** are common in higher-mileage examples.
- **Electrical gremlins** (iDrive glitches, sensor failures) can be frustrating.
3. **Fuel Economy (Non-Diesel Models)**
- The **200i (N54) gets 18 22 MPG combined**, which is **not great for a luxury sedan**.
- The **347i (V8) is thirsty ( 16 19 MPG)**, making it less practical for daily commuting unless fuel costs are low.
4. **Comfort vs. Sportiness Trade-Off**
- While the 5 Series is **excellent to drive**, it s **not as comfortable as a Mercedes E-Class or Audi A8** on long highway trips.
- The **suspension is firm**, which can lead to **road noise and less isolation from bumps** compared to softer rivals.
5. **Depreciation (Compared to Some Rivals)**
- While the 5 Series holds value **better than most**, it **does not depreciate as slowly as an M5 or a well-maintained diesel model**.
- **Used market pricing** can vary widely **check for service records** before buying.
6. **Complexity & Tuning Risks**
- The **N54 and N63 require careful tuning** **over-turboing or improper fueling** can lead to **engine damage**.
- **Aftermarket parts quality varies** cheap turbo kits or injectors can cause long-term issues.
7. **Diesel Emissions & Future Regulations**
- **N57 diesel models (20d) may face emissions compliance issues** in some regions as stricter **Euro 6d-TEMP/6d standards** are enforced.
- **Diesel exhaust fluid (DEF) requirements** add maintenance complexity.
8. **Limited Practicality for Some Buyers**
- The **5 Series is not as spacious as a Mercedes E-Class or BMW 7 Series** in the rear seat.
- **Fueling a V8 (347i) can be inconvenient** if you don t have a premium gas station nearby.
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Buyer should verify this is the exact part needed before purchasing.