BMW 51317296009 Left Drip Rail Moulding Convertible

( Manufacturer Part Number: 51317296009 ), ( Placement On Vehicle: Rear )

Review BMW Left Drip Rail Moulding Convertible Series Oem fits M4 F33 F83 2015–2020

The **BMW 51317296009 M4 Left Drip Rail Moulding** is a precision-engineered aftermarket accessory designed exclusively for the **F33 (F33) and F83 (F83) M4 Convertible models** produced between **2015 and 2020**. This high-quality moulding is crafted to seamlessly integrate with the vehicle s **left-side drip rail**, the aerodynamic channel that runs along the roof edge, helping to channel water away from critical components while enhancing the car s sleek, factory-inspired appearance. Made from **durable, weather-resistant materials**, this moulding is built to withstand the elements, ensuring long-lasting performance even in harsh conditions. Its **custom-fit design** eliminates gaps and misalignments, providing a flawless finish that complements the M4 s sporty yet refined aesthetic. Whether installed for functional protection against rain and debris or for aesthetic enhancement, this moulding is a subtle yet impactful upgrade that elevates the convertible s overall look while maintaining the integrity of BMW s signature engineering. Perfect for enthusiasts seeking both form and function, this part is a must-have for owners looking to preserve their vehicle s pristine condition and curb appeal.

### **Pros and Cons of Buying a 2015-2020 BMW M4 (F83) with Left Drip Rail Moulding (Part #51317296009)**

#### **Pros**

1. **Performance and Driving Dynamics**

The BMW M4 (F83) is a high-performance sedan with a naturally aspirated 3.0L inline-six engine producing around **400-420 hp** (depending on the year and trim). It delivers sharp handling, precise steering, and a sporty ride, making it a favorite among enthusiasts. The F83 s chassis is well-tuned for both track and street use, with features like adaptive dampers, a limited-slip differential, and a six-speed manual or eight-speed automatic transmission.

2. **Exclusivity and Brand Prestige**

BMW M cars carry a strong brand reputation for engineering excellence and performance. Owning an M4 (especially in the F83 generation) signals a commitment to driving dynamics and luxury, which can be appealing for those who value brand status.

3. **Reliability (Compared to Competitors)**

While no car is perfect, the M4 s engine and drivetrain are robust. The inline-six is known for longevity if maintained properly. However, BMW s M cars do require more frequent and costly maintenance than mass-market alternatives (e.g., BMW 4 Series, Audi S5, or Mercedes C63).

4. **Aftermarket Support**

The M4 has a strong aftermarket community, with widespread availability of performance parts, tuning solutions, and modifications. This makes it easier to enhance power, handling, or aesthetics if desired.

5. **Convertible Top Mechanism (If Applicable)**

If the car is a **F33 Cabriolet** (convertible version), the retractable soft top is a desirable feature for open-air driving. However, the top mechanism can be finicky and may require occasional servicing.

6. **Resale Value**

M cars, especially well-maintained examples, hold their value reasonably well compared to standard BMWs. The F83 M4 is still sought after, though not as much as newer M models (e.g., F93 M4).

---

#### **Cons**

1. **High Cost of Ownership**

The M4 is not a budget-friendly car. Maintenance, repairs, and even routine services (e.g., oil changes, brake jobs) are significantly more expensive than those of non-M BMWs or competitors. Common high-cost items include:

- **Engine and drivetrain components** (e.g., timing chain, turbocharger if upgraded, suspension parts).

- **Brakes** (high-performance ceramics or carbon-ceramic brakes are common upgrades).

- **Transmission** (automatic transmissions can be finicky and require specialized servicing).

- **Electronics and sensors** (BMW s complex infotainment and driver aids can be prone to glitches).

2. **Maintenance Intensity**

- **Timing chain and water pump replacement** (often recommended around **100,000 miles**).

- **Suspension servicing** (adaptive dampers and bushings wear out and need replacement).

- **Cooling system checks** (the inline-six runs hot and requires proper coolant and thermostat maintenance).

- **Exhaust and emissions systems** (catalytic converters and oxygen sensors can fail prematurely).

3. **Fuel Efficiency**

The M4 is not fuel-efficient by modern standards. Expect **around 18-22 MPG combined** (city/highway), which is worse than most non-M BMWs and rivals like the Audi S5 or Mercedes C63. High fuel costs can add up over time.

4. **Comfort and Practicality Trade-offs**

While the M4 is a great driver s car, it sacrifices some comfort compared to luxury sedans. The ride can be firm, and the interior is more sporty than plush. The trunk space is also smaller than non-M BMWs, making it less practical for large families or frequent road trips.

5. **Common Issues and Reliability Concerns**

- **Electrical gremlins**: BMWs (especially M models) are notorious for infotainment glitches, sensor failures, and wiring issues.

- **Transmission problems**: Some owners report rough shifting or delayed engagement in the automatic transmission, particularly in older examples.

- **Rust**: If the car has seen salt exposure (e.g., winter driving), rust in the wheel wells, subframe, or rocker panels can be a concern.

- **Soft top reliability (F33)**: The convertible top mechanism can fail or leak, requiring costly repairs.

6. **Depreciation**

While M cars hold value better than most BMWs, they still depreciate significantly. A 2015-2020 M4 will lose a substantial portion of its value over time, especially if not well-maintained.

7. **Insurance Costs**

The M4 is expensive to insure due to its high performance and repair costs. Premiums will be higher than for a standard BMW 4 Series or comparable non-M vehicles.

---

### **Conclusion**

The **2015-2020 BMW M4 (F83)** is a fantastic car for enthusiasts who prioritize driving dynamics, performance, and the M badge over practicality and cost efficiency. It offers a thrilling driving experience, strong aftermarket support, and a cult-like following. However, it comes with significant drawbacks, particularly in terms of maintenance costs, fuel economy, and long-term ownership expenses.

If you are a **dedicated driver, have a budget for high maintenance costs, and prioritize performance over practicality**, the M4 is an excellent choice. However, if you are looking for a **more affordable, lower-maintenance, or family-friendly car**, alternatives like the **BMW 4 Series, Audi S5, or Mercedes C63** (non-M versions) may be more suitable.

---

### **Recommendation**

- You have a **dedicated budget for maintenance and repairs** (plan for **$1,500 $3,000/year** in addition to fuel and insurance).

- You **enjoy driving** and value the M4 s performance and sporty nature.

- You **intend to keep the car for a short to medium term** (5 7 years) rather than long-term.

- You **have access to a trusted mechanic** who specializes in BMWs (preferably M cars).

- You **prioritize the driving experience** over comfort, fuel efficiency, or practicality.

- You want **lower running costs** (consider a **BMW 435i, Audi S5, or Mercedes C63**).

- You need **better fuel economy** (hybrid or turbocharged alternatives may suit you better).

- You **prefer a more comfortable or practical car** (e.g., BMW 5 Series, Audi A6, or Mercedes E-Class).

- You **cannot afford unexpected repairs** (the M4 is not a "set-and-forget" car).

- **Get a pre-purchase inspection (PPI)** from a **BMW specialist** to check for hidden issues (timing chain, suspension, electrical systems).

- **Verify maintenance records** (especially for timing chain, soft top, and cooling system).

- **Test drive thoroughly** to ensure the car drives smoothly and has no unusual noises or handling quirks.

- **Budget for the drip rail moulding replacement** (if the current one is damaged or worn). While this part is relatively inexpensive ( $100 $200), it s a small but noticeable detail for a convertible.

- If you plan to **keep the car beyond 100,000 miles**, be prepared for **major services** (timing chain, suspension, transmission).

- Consider **insurance coverage** some policies may exclude M cars or charge significantly higher premiums.

- Explore **tuning options** (if you want to enhance performance) but be aware of **warranty implications** and potential reliability trade-offs.

### **Final Verdict**

The **BMW M4 (F83) is a fantastic car for the right owner** one who loves performance, isn t afraid of maintenance costs, and values the M badge. However, it is **not a practical or budget-friendly choice** for everyone. If you re serious about buying one, **do your due diligence, budget accordingly, and enjoy the ride** because when it s running well, it s one of the best driver s cars on the road.

Details:

Business with limited access is $150 extra. Lift gate delivery to a business without limited access is $85 extra. All shipping charges are within lower 48 states only. Left Drip Moulding.

part #: 51317296009 prices

• $55.00-$75.90

specifications cartrimmouldings:

• for models: M4, F33, F83
• for makes: Bmw
• for years: 2015-2020
• mpn: 51317296009
• placement on vehicle: Rear

general cartrimmouldings:

• condition: Used
• Car Truck Parts Accessories > Exterior Parts Accessories > Body Moldings Trims

returns cartrimmouldings:

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

shipping cartrimmouldings:

• cost: $0.00
• type: Fixed
• transit: 4-8 Days
• service: Standard
• class: Standard

seller cartrimmouldings:

• rating: 99.9%
• # reviews: 22588
• city: Flat Rock, North Carolina

payments cartrimmouldings:

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

offer cartrimmouldings:

• started: March 13, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

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