BMW 51-21-5-A36-E17 Lock Actuator 643.BM1X13 10161699

( Manufacturer Part Number: 51-21-5-A36-E17 ), ( Part Type: Actuator Lock ), ( Conditions Options: Lh Frt Lock Actuator 51 21 5 A36 E17 ), ( Genuine Oem: Yes ), ( Ipn: 643.bm1x13 ), ( Manufacturer Warranty: 1 Year )

Review BMW Lock Actuator fits 750I 2013

The **BMW 643.BM1X13 750i (2013) Lock Actuator (Part Number: 10161699)** is a precision-engineered component designed to ensure seamless and reliable operation of the vehicle s central locking system. This actuator is a critical part of BMW s advanced electronic door lock mechanism, responsible for smoothly engaging and disengaging the door locks with minimal effort, even under varying environmental conditions. Crafted to meet BMW s stringent quality standards, this actuator is built with durable materials, including high-grade plastics and reinforced metal components, to withstand the demands of daily use while maintaining long-term reliability. The design incorporates a compact yet robust motor assembly, optimized for quiet operation and precise control, ensuring that the locks activate smoothly without unnecessary noise or resistance. Compatible exclusively with the **2013 BMW 750i (F01/F02 chassis)**, this actuator is engineered to integrate flawlessly with the vehicle s existing electrical and mechanical systems, maintaining the luxury and sophistication for which BMW is renowned. Whether used in a replacement scenario or as an upgrade to enhance performance, this part is designed to deliver consistent, trouble-free functionality, reinforcing the vehicle s reputation for premium engineering and driver convenience. Its precise engineering ensures compatibility with the car s keyless entry system, remote controls, and manual override mechanisms, making it an essential component for maintaining the integrity of the vehicle s security and user experience.

### **Pros and Cons of Buying a 2013 BMW 6 Series (643.bm1x13, 750i) with Lock Actuator Issue (Part Number 10161699)**

#### **Pros**

1. **Strong Performance and Luxury Appeal**

The 2013 BMW 6 Series (especially the 750i variant) is a high-performance luxury sedan with a powerful twin-turbocharged V8 engine (5.0L) producing around 550-600 hp, depending on tuning. It delivers exhilarating acceleration and a refined driving experience, making it ideal for enthusiasts who value both luxury and performance.

2. **Premium Interior and Build Quality**

BMW s interior is known for its high-quality materials, ergonomic design, and advanced infotainment system (iDrive). The 750i comes with features like leather-trimmed seats, heated/ventilated options, ambient lighting, and a premium sound system. The build quality is generally solid, though some wear may be present in a used model.

3. **Reliability of the V8 Engine (When Maintained Properly)**

The N63B50 engine in the 750i is robust and capable of handling high performance. With regular maintenance (oil changes, valve adjustment, and cooling system checks), it can last well beyond 100,000 miles. However, like all turbocharged engines, it requires attentive care to avoid long-term issues.

4. **Resale Value and Brand Prestige**

BMWs, especially high-end models like the 6 Series, retain their value relatively well compared to some competitors. The brand carries prestige, which can be appealing if you value status or plan to sell it later.

5. **Available Aftermarket Support**

The 6 Series has a strong aftermarket community, offering parts, upgrades, and tuning solutions. This makes it easier to address issues like the lock actuator problem or improve performance and aesthetics.

6. **Comfort and Handling**

The 6 Series offers a smooth ride with adaptive suspension, making it comfortable for daily driving while still providing sharp handling. The steering is precise, and the car tracks well on the road.

---

#### **Cons**

1. **Lock Actuator Issue (Part Number 10161699)**

The primary concern with this specific vehicle is the faulty lock actuator, which can cause intermittent or complete failure of the power locks. This is a common issue in some BMW models, particularly those with the iDrive 6 system. The actuator may require replacement, which can cost between **$200 $500** (parts and labor). If the issue is electrical or software-related, diagnostics may be needed, adding to the cost.

2. **Electrical Gremlins and iDrive Reliability**

The 2013 6 Series uses the iDrive 6 system, which has been known to have software glitches, freezing, or unresponsiveness. While not directly related to the lock actuator, these issues can be frustrating and may require updates or professional attention.

3. **Maintenance and Repair Costs**

BMWs are known for their high maintenance costs, especially for luxury and performance-oriented models. Regular services like valve adjustments (every 60,000 100,000 miles), cooling system flushes, and transmission fluid changes can add up. The 750i s turbocharged engine also requires careful monitoring to prevent costly failures.

4. **Fuel Economy Limitations**

The 750i s V8 engine is not fuel-efficient, averaging around **14 16 MPG combined**. This can be a drawback if you frequently drive long distances or have high annual mileage.

5. **Depreciation and Market Saturation**

The 6 Series, while still desirable, has faced depreciation challenges due to competition from other luxury brands (e.g., Mercedes-Benz, Audi, Lexus). Used market saturation means you may not get the best value for a 2013 model unless it s in excellent condition.

6. **Potential Hidden Issues**

- **Transmission wear** (especially if the owner neglected fluid changes).

- **Cooling system failures** (water pump, thermostat, or radiator issues).

- **Suspension wear** (struts, bushings, or control arm wear).

- **Exhaust or emissions system issues** (DPF, EGR, or turbocharger problems in some cases).

---

### **Conclusion**

Buying a **2013 BMW 6 Series 750i (643.bm1x13) with a lock actuator issue** can be a rewarding experience if you prioritize performance, luxury, and are prepared for potential electrical or maintenance challenges. The lock actuator is a manageable issue, but it s important to budget for its replacement. If you re comfortable with higher ownership costs, enjoy driving a high-performance luxury car, and can address minor quirks, this vehicle offers an exciting package.

However, if you re looking for a more reliable, lower-maintenance luxury sedan or have concerns about electrical systems, you may want to consider alternatives like a **well-maintained Mercedes-Benz S-Class, Audi A8, or Lexus LS**, which may have fewer known issues.

---

### **Recommendation**

1. **Get a Professional Inspection**

Before purchasing, have a trusted BMW mechanic perform a **pre-purchase inspection (PPI)** to assess the condition of the engine, transmission, electrical system, and lock actuator. This will help identify any hidden issues and give you confidence in the purchase.

2. **Budget for the Lock Actuator Replacement**

Allocate funds for replacing the faulty lock actuator (approximately **$200 $500**). If the issue is part of a larger electrical problem, be prepared for additional costs.

3. **Verify Maintenance History**

Ensure the vehicle has a **complete service history**, including oil changes, valve adjustments, and cooling system maintenance. A well-documented history reduces the risk of unexpected failures.

4. **Consider a Certified Pre-Owned (CPO) Option**

If available, a CPO 6 Series from BMW or a reputable dealer may come with extended warranties, reducing some of the risk.

5. **Test Drive and Monitor Electrical Systems**

During the test drive, check all electrical functions (locks, windows, infotainment, lights) to ensure they operate smoothly. Pay attention to any warning lights or unusual behavior.

6. **Negotiate the Price**

Given the known lock actuator issue and potential other wear, negotiate the price to account for repairs or replacements. A fair offer might be **10 20% below market value** depending on the car s condition.

7. **Alternative Considerations**

- **Mercedes-Benz S-Class (W222, 2013 2014)** More refined but with its own quirks.

- **Audi A8 (D4, 2013 2015)** Quattro AWD and strong resale value.

- **Lexus LS (500h, 2013 2015)** Hybrid option with excellent reliability.

---

### **Final Verdict**

The **2013 BMW 6 Series 750i** is a fantastic car for those who love performance and luxury but requires careful consideration of its maintenance needs and potential electrical issues. If you re prepared for the challenges and find a well-maintained example, it can be an excellent purchase. However, if reliability is your top priority, weigh the pros and cons carefully or consider alternatives.

Details:

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. Please disregard other fitment charts they may not be correct. Original is 5964073 Included: Hassle-free 1 Year Warranty Our Part #: 10161699.

More Parts: 1 Year Warranty. Very happy customer, excellent value and service. Quality, Assured Parts All are Quality Tested Inspected. Please compare part numbers BEFORE purchasing.

750I 2013 Lock Actuator 10161699: LH FRT LOCK ACTUATOR 51 21 5 A36 E17 ; FROM 2009 2016 4.4L Dummy. Free shipping only applies to items you keep. Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. If something is wrong with an order, we certainly do want to help you.

Easy to find parts that don't require a mechanics knowledge.

part #: 51215a36e17 prices

• $172.00-$852.32

specifications carlockiio:

• for models: 750i
• for makes: Bmw
• for years: 2013
• mpn: 51-21-5-a36-e17
• part type: Actuator Lock
• conditions options: Lh Frt Lock Actuator 51 21 5 A36 E17
• genuine oem: Yes
• ipn: 643.bm1x13
• manufacturer warranty: 1 Year

seller carlockiio:

• rating: 97.1%
• # reviews: 23091
• city: Rancho Cordova, California

shipping carlockiio:

• cost: $20.00
• service: Flat Rate Freight
• type: Fixed
• class: Freight

offer carlockiio:

• quantity: 1
• best offers: True
• sold: 0
• availability: In Stock
• started: March 9, 2026
• options: Ship-to-home

general carlockiio:

• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
• condition: Used

payments carlockiio:

• other
• credit card: Diners-club
• wallet: Google-pay

returns carlockiio:

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

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