BMW Emergency Brake 547.BM1N11

( Part Type: Emergency Brake ), ( Conditions Options: Ebrake Actuator W/cable ), ( Genuine Oem: Yes ), ( Ipn: 547.bm1n11 ), ( Manufacturer Warranty: 1 Year )

Review BMW Emergency Brake Parts fits 550I 2011

The **BMW 547.BM1N11 550i (2011 model)** emergency brake system represents a sophisticated integration of precision engineering and cutting-edge automotive technology, designed to ensure optimal safety and reliability for one of BMW s most luxurious and performance-oriented sedans. This particular braking subsystem is a critical component of the **550i s advanced chassis control architecture**, which combines a powerful **6.0-liter V12 twin-turbocharged engine** with a meticulously calibrated braking system to deliver both exhilarating performance and refined daily usability. The emergency brake, often referred to as the parking brake or handbrake, in this model is engineered to provide seamless engagement and release, leveraging BMW s signature blend of hydraulic and mechanical precision. Unlike conventional parking brake systems, the **550i s emergency brake is integrated into the rear axle via a sophisticated **electro-hydraulic system**, allowing for smooth, fade-resistant operation even under demanding conditions. This system utilizes a **dual-circuit hydraulic setup**, ensuring redundancy and reliability, while the **servo-assisted mechanism** reduces the effort required to activate the brake, making it both user-friendly and robust. The emergency brake is also designed to interface seamlessly with the vehicle s **DSC (Dynamic Stability Control) system**, which monitors wheel speed and lateral dynamics to prevent unintended engagement during high-speed maneuvers or aggressive driving. For added convenience, the **550i s emergency brake can be operated either manually via the center console lever or electronically through the **iDrive system**, allowing drivers to activate or release it with a simple touch on the touchscreen. This dual-modality approach enhances accessibility while maintaining the system s robustness. The materials and construction of the emergency brake components reflect BMW s commitment to quality, with high-grade **stainless steel and corrosion-resistant alloys** ensuring longevity and resistance to environmental factors. The system is also engineered to withstand the extreme forces generated by the **550i s powerful engine and high-performance tires**, providing consistent braking performance even during spirited driving or heavy loads. Whether parked on a steep incline or engaged during a dynamic driving scenario, the **2011 BMW 550i s emergency brake system exemplifies the brand s dedication to blending luxury, performance, and engineering excellence, delivering a braking solution that is as refined as it is dependable.

### **Pros and Cons of Buying a 2011 BMW 547.bm1n11 (550i) with an Emergency Brake Issue**

#### **Pros**

1. **Strong Performance and Luxury**

The 2011 BMW 550i (N54 engine) is a well-regarded luxury sedan with a powerful inline-6 twin-turbo engine producing around 407 horsepower. It delivers a smooth, engaging driving experience with quick acceleration and a refined interior.

2. **Reliability of the N54 Engine**

While the N54 has some known issues (carbon buildup, oil consumption, and turbo failures), it is generally reliable if well-maintained. Many owners report that with proper care, it can last well beyond 100,000 miles.

3. **High Resale Value**

BMW 5 Series models, especially the 550i variant, retain strong resale value compared to many competitors. This means you may recover a significant portion of your investment if you decide to sell later.

4. **Comfortable and Spacious Interior**

The 5 Series offers a luxurious cabin with high-quality materials, ample legroom, and a premium sound system. The seating is comfortable for long drives, and the infotainment system (if updated) provides modern connectivity options.

5. **Available Upgrades and Modifications**

The N54 platform is popular among tuners, and aftermarket support is strong. You can upgrade components like exhausts, intake systems, or even swap in a more reliable turbo setup if needed.

6. **Safety Features**

The 2011 model comes with standard safety features such as stability control, traction control, and multiple airbags. Some may have optional advanced safety tech like adaptive cruise control or collision warning, depending on the trim.

7. **Classic BMW Driving Dynamics**

The 5 Series is known for its precise steering, well-balanced handling, and engaging driving experience. Even in sedan form, it retains BMW s signature sporty feel.

---

#### **Cons**

1. **Emergency Brake (Parking Brake) Issues**

The most significant concern here is the malfunctioning emergency brake. A faulty parking brake can be dangerous, as it may fail to hold the car in place, leading to rollaway risks. This is a critical safety issue that must be addressed immediately by a professional. The cost of repair could be substantial, depending on whether it involves the hydraulic or electronic parking brake system.

2. **N54 Engine Reliability Concerns**

- **Carbon Buildup:** Direct-injection engines like the N54 suffer from carbon deposits on intake valves, leading to rough idling, misfires, and reduced performance. This requires periodic cleaning (every 50,000 70,000 miles).

- **Oil Consumption:** Some N54 engines burn oil excessively, requiring frequent top-ups. If oil consumption is severe, it could indicate more serious internal wear.

- **Turbo and Valvetronic Failures:** The twin-turbo setup and Valvetronic system (variable intake valve control) can fail over time, leading to expensive repairs.

- **Timing Chain Issues:** While less common than in earlier models, timing chain stretch or tensioner failure can cause catastrophic engine damage if ignored.

3. **Transmission Problems (If Equipped with ZF 6HP21)**

- **Slipping or Delayed Shifts:** Fluid degradation or solenoid failures can cause rough shifting.

- **Transmission Fluid Leaks:** Low fluid levels can lead to overheating and premature wear.

- **Electronic Glitches:** Software or sensor issues may require a dealer visit for reprogramming.

4. **Maintenance Costs**

BMWs, especially luxury models, are expensive to maintain. Parts, labor, and diagnostics can be costly, particularly if you rely on dealership service. Independent mechanics may offer better rates but require thorough vetting.

5. **Electrical and Infotainment Issues**

The 2011 model may have outdated or finicky infotainment systems (depending on the trim). Some owners report issues with Bluetooth connectivity, screen freezes, or navigation glitches. Upgrading to a newer iDrive system can be pricey.

6. **Depreciation**

While the 550i retains value better than many competitors, luxury cars still depreciate significantly. If you plan to keep it long-term, factor in the reduced value over time.

7. **Potential Hidden Damage**

- **Rust:** Check the wheel wells, undercarriage, and frame for corrosion, especially if the car has seen harsh winters.

- **Suspension Wear:** Bushings, shocks, and struts may need replacement, affecting ride quality and handling.

- **Exhaust Leaks:** The N54 s exhaust system can develop leaks, leading to noise and potential emissions issues.

---

### **Conclusion**

The 2011 BMW 550i (N54) is an attractive luxury sedan with strong performance and a comfortable ride, but it comes with notable drawbacks particularly the emergency brake issue, which is a red flag that cannot be ignored. If the parking brake is non-functional or unreliable, this is a dealbreaker unless you are prepared to invest in repairs immediately.

Assuming the emergency brake is fixed (or you are willing to budget for it), the N54 engine s reliability depends heavily on maintenance history. If the car has been well-maintained with regular oil changes, carbon cleaning, and transmission fluid updates, it could be a solid purchase. However, if maintenance records are lacking, expect higher repair costs down the line.

The 550i is a great car for those who prioritize performance, luxury, and driving enjoyment but it requires vigilance and a budget for potential issues. If you are a BMW enthusiast who enjoys working on the car or has access to skilled mechanics, it could be a rewarding project. For casual buyers or those seeking a hassle-free luxury sedan, there may be more reliable alternatives (e.g., a well-maintained 535i or a newer model with fewer known issues).

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### **Recommendation**

- Get a professional inspection of the parking brake system. If it s hydraulic, check for leaks, worn cables, or master cylinder issues. If it s electronic (e.g., EHB system), ensure the actuators and wiring are functioning. Do not proceed with the purchase unless this is resolved.

- Engine condition (compression test, oil consumption, turbo health).

- Transmission fluid condition and shift smoothness.

- Suspension, steering, and brake system (including the emergency brake).

- Electrical systems (infotainment, sensors, lights).

- Underbody for rust or leaks.

- Oil changes (synthetic oil recommended every 5,000 7,500 miles).

- Carbon cleaning (every 50,000 70,000 miles).

- Transmission fluid changes (every 60,000 100,000 miles).

- Timing chain inspection (if applicable).

- Emergency brake repair (could range from $200 for cables to $1,000 for electronic systems).

- Carbon cleaning ($300 $600).

- Transmission fluid flush ($200 $400).

- Suspension or brake upgrades if worn.

- Potential turbo or Valvetronic issues (could exceed $1,500 if severe).

- If the emergency brake issue cannot be resolved affordably, look for a 550i with a known-good parking brake system.

- Alternatively, consider a 2012 2016 550i (N55 engine), which is more refined but may have different reliability quirks.

- For a more reliable luxury sedan, a well-maintained 535i (N54 or N55) or a Mercedes E350/400 could be worth evaluating.

- If the seller is unwilling to fix the emergency brake, negotiate a lower price to account for the repair cost. Aim for a price that reflects the car s condition and potential expenses.

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### **Final Verdict**

The 2011 BMW 550i is a capable and enjoyable luxury sedan, but the emergency brake issue is a critical flaw that must be addressed before purchasing. If you are prepared for the potential costs of repairs and maintenance, and if the car checks out in all other areas, it can be a great buy. However, if you are not comfortable with the risks or lack the budget for repairs, it may be wiser to look elsewhere. Always prioritize safety and reliability over short-term savings.

Details:

Very happy customer, excellent value and service. If something is wrong with an order, we certainly do want to help you. Quality, Assured Parts All are Quality Tested Inspected. More Parts: 1 Year Warranty.

Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. Please disregard other fitment charts they may not be correct. Free shipping only applies to items you keep. Easy to find parts that don't require a mechanics knowledge.

Please compare part numbers BEFORE purchasing. Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Image shown may be the vehicle from which part was pulled, or a generic image representing typical stock, rather than unique item being sold. 550I 2011 Emergency Brake Parts 9357222: EBRAKE ACTUATOR W/CABLE Included: Hassle-free 1 Year Warranty Our Part #: 9357222.

part #: 550i price

• $150.00

specifications parkingbrakecablesaz:

• for models: 550i
• for makes: Bmw
• for years: 2011
• part type: Emergency Brake
• conditions options: Ebrake Actuator W/cable
• genuine oem: Yes
• ipn: 547.bm1n11
• manufacturer warranty: 1 Year

seller parkingbrakecablesaz:

• rating: 97.2%
• city: Rancho Cordova, California
• # reviews: 23223

payments parkingbrakecablesaz:

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

returns parkingbrakecablesaz:

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

general parkingbrakecablesaz:

• Car Truck Parts Accessories > Brakes Brake Parts > Brake Cables
• condition: Used

offer parkingbrakecablesaz:

• started: March 27, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True

shipping parkingbrakecablesaz:

• service: Flat Rate Freight
• type: Fixed
• cost: $25.00
• class: Freight

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