1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your NCOUUOCN Car Exterior Comfort Access Door Handle. Designed for specific BMW 5 and 7 Series models, this high-quality replacement part restores keyless entry functionality and enhances vehicle aesthetics. Please read this manual thoroughly before installation and use.
2. Product Overview & Features
The NCOUUOCN Car Exterior Comfort Access Door Handle is a direct replacement component engineered for durability and seamless integration with your vehicle's existing comfort access system. It is constructed from high-quality ABS+PC materials, ensuring a long service life and resistance to scratches and degluing.
Key Features:
- Durable Construction: Made from robust ABS+PC materials for extended lifespan.
- Comfort Access Functionality: Supports keyless entry for convenient vehicle access.
- Aesthetic Integration: Designed to match original car color and luster, with anti-scratch and anti-deglue properties.
- Integrated LED: Features an internal LED for illumination (visible in product images).
Visual Product Details:

Figure 2.1: Front/Rear Right White-with Sensor Door Handle.

Figure 2.2: Black door handle showing approximate dimensions (25.5cm length, 8.5cm height, 5cm width).

Figure 2.3: Illustration distinguishing between door handles with a sensor (indicated by stripe pattern) and without a sensor (smooth surface), crucial for keyless entry functionality.

Figure 2.4: Important note regarding color: The product is Mineral White, which contains metal powder, and is distinct from Alpine White. Please verify your vehicle's paint code before purchase.
Product Video:
Video 2.1: An overview of the NCOUUOCN Car Exterior Comfort Access Door Handle, showcasing its design and features.
3. Compatibility
This door handle is compatible with various BMW 5, 6, and 7 Series models. Please verify your vehicle's model and year against the list below to ensure proper fitment. The reference OEM Part Number for this product is 51217231934.
Compatible Models:
- BMW 5 Series:
- F07 GT (09/2008 – 06/2013)
- F07 GT LCI (08/2012 – 10/2016)
- F10 (01/2009 – 10/2016)
- F10 LCI (08/2012 – 10/2016)
- F11 (01/2009 – 06/2013)
- F11 LCI (08/2012 – 10/2016)
- BMW 6 Series:
- F06 Gran Coupé (05/2011 – 03/2015)
- F06 Gran Coupé LCI (05/2014 – 10/2016)
- F12 (10/2009 – 02/2015)
- F12 LCI (05/2014 – 10/2016)
- F13 (03/2010 – 02/2015)
- F13 LCI (05/2014 – 10/2016)
- BMW 7 Series:
- F01 (06/2007 – 06/2012)
- F01 LCI (05/2011 – 05/2015)
- F02 (07/2007 – 06/2012)
- F02 LCI (05/2011 – 05/2015)
- F03 (04/2008 – 05/2012)
- F03 LCI (01/2012 – 03/2015)
- F04 Hybrid (10/2008 – 06/2012)
4. Installation
The NCOUUOCN Comfort Access Door Handle is designed for straightforward installation, requiring no cutting or drilling. Many users report successful installation within minutes. For a visual guide, it is highly recommended to search for "BMW F-series door handle replacement" videos on platforms like YouTube.
General Installation Steps:
- Locate the single retaining screw on the edge of the door, typically a Torx 15 bit is required.
- Loosen this screw. This will allow the existing door handle to be removed.
- Carefully lift the old handle away from the door.
- Disconnect any electrical connectors attached to the old handle.
- Connect the electrical connector(s) to the new NCOUUOCN door handle.
- Position the new handle into the door opening.
- Tighten the retaining screw to secure the new handle in place.
After installation, test the comfort access functionality and ensure the handle operates smoothly.

Figure 4.1: Example of the door handle installed on a compatible BMW vehicle.
5. Operating Instructions
This door handle is designed to integrate with your BMW's Comfort Access system, allowing for keyless locking and unlocking of the vehicle.
Keyless Entry and Locking:
- Unlocking: With your vehicle key in close proximity (e.g., in your pocket or bag), simply grasp the door handle. The vehicle will automatically unlock.
- Locking: To lock the vehicle, touch the ribbed surface on the exterior of the door handle (for models with sensor). The vehicle will lock automatically.
Ensure your vehicle's Comfort Access system is enabled in its settings for full functionality.
6. Maintenance
To ensure the longevity and optimal performance of your NCOUUOCN door handle, follow these simple maintenance guidelines:
- Cleaning: Regularly clean the door handle with a soft cloth and mild automotive soap. Avoid abrasive cleaners or harsh chemicals that could damage the finish.
- Inspection: Periodically inspect the handle for any signs of wear, damage, or loose connections.
- Avoid Impact: Protect the handle from strong impacts or excessive force, which could compromise its integrity or functionality.
7. Troubleshooting
If you experience issues with your comfort access door handle, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Comfort Access not working (no lock/unlock) | Incorrect installation, faulty connection, or vehicle system issue. |
|
| Rapid locking/unlocking or repeated cycles | Often a symptom of a failing comfort access sensor. | This replacement handle is designed to resolve this issue. If it persists, re-check installation or consult a professional. |
| "Battery discharge while stopped" message | A faulty comfort access handle can cause the car's system to remain active. | Replacing the faulty handle with this product should eliminate this message. If it continues, investigate other potential battery drain sources. |
If problems persist after attempting these solutions, it is advisable to consult a qualified automotive technician.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | NCOUUOCN |
| Model Number | Door Handle For BMW 5 7 Series |
| Part Number | 51217231934 |
| Color | White-with sensor (Note: Mineral White, not Alpine White) |
| Material | ABS+PC |
| Product Dimensions | 10.04"L x 1.97"W (approx. 25.5cm L x 5cm W) |
| Item Weight | 7.8 Ounces |
| Exterior Finish | Chrome (referring to the accent strip) |
| Special Feature | Durable, Keyless (Comfort Access) |
| Included Components | DOOR HANDLE (1 unit) |
| Lock Type | Key Lock (referring to the overall car system, not the handle itself) |
| Handle Attachment Mechanism | Clip-on |
9. Warranty and Support
Information regarding product warranty and specific support contacts is not provided within this manual. For any warranty claims, technical assistance, or further inquiries, please refer to the product listing on the platform where it was purchased or contact the seller directly.





