fits model: W166, Gl. make: Mercedes. year: 2012–2016.

( Manufacturer Part Number: 1667230314 ), ( Type: Door Lock ), ( Manufacturer Warranty: 1 Month ), ( Color: White ), ( Country Of Origin: Germany ), ( Placement On Vehicle: Front, Left )
The **Mercedes-Benz 1667230314 12-16 x166 W166 GL Front Left Door Lock Latch Actuator** is a precision-engineered component designed exclusively for the iconic **Mercedes-Benz W166 (S-Class, 2005 2013)** model lineup, including the **S600, S63 AMG, and S65 AMG** variants. This high-performance door lock latch actuator is a critical element of the vehicle s electrical door locking system, ensuring seamless operation, enhanced security, and a refined driving experience. Crafted from durable, corrosion-resistant materials, this actuator is built to withstand the rigorous demands of daily use while maintaining the luxury and reliability synonymous with Mercedes-Benz engineering. The unit features a robust **12-16V electrical interface**, compatible with the W166 s advanced electronics, allowing for smooth engagement and disengagement of the door latch mechanism with minimal effort. Whether in the **S600 s elegant elegance** or the **S63 AMG s high-performance prowess**, this actuator delivers consistent performance, contributing to the vehicle s signature blend of sophistication and engineering excellence. Ideal for both original equipment replacement (OEM) and aftermarket upgrades, this part adheres to strict Mercedes-Benz quality standards, ensuring a perfect fit and flawless integration with the existing door lock assembly. For owners seeking to restore or enhance their W166 s functionality, this latch actuator represents a dependable, long-lasting solution that upholds the brand s reputation for precision and performance.
### **Pros and Cons of buying a Mercedes-Benz Part Number 1667230314 (Front Left Door Lock Latch Actuator for W166 GL Models, Years 2012 2016)**
#### **Pros:**1. **Direct Fitment** This part is specifically designed for the **Mercedes-Benz W166 GL (2012 2016)** models, ensuring compatibility without modifications. It includes the **front left door lock latch actuator**, which is a critical component for proper door operation, security, and electrical functionality.
2. **OEM Quality** As an original equipment manufacturer (OEM) part, it meets Mercedes-Benz s strict standards for durability, performance, and reliability. This reduces the risk of premature failure compared to aftermarket knockoffs.
3. **Prevents Further Damage** A faulty door latch actuator can cause **malfunctioning locks, power window issues, or even door misalignment**. Replacing it early prevents secondary problems like **damaged door hinges, wiring wear, or central locking system failures**.
4. **Warranty Coverage** If purchased from an authorized dealer or a reputable supplier, this part may come with a **limited warranty**, providing peace of mind against defects.
5. **Improves Safety and Convenience** A properly functioning latch actuator ensures **secure door closure, reliable keyless entry, and smooth operation** of power locks and windows, enhancing both safety and user experience.
6. **Easier Installation** Since it is a direct replacement, installation is straightforward for mechanics with basic tools. No customization or additional parts are required.
7. **Long-Term Cost Savings** While the upfront cost may be higher than some aftermarket alternatives, OEM parts often last longer, reducing the need for frequent replacements and saving money over time.
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#### **Cons:**1. **Higher Cost** OEM parts are typically **more expensive** than aftermarket alternatives. The price can range from **$150 $300 **, depending on the supplier and region, which may be a significant investment for DIYers or those on a tight budget.
2. **Potential Counterfeit Risks** If buying from untrusted sources (e.g., eBay, unlicensed sellers, or gray-market suppliers), there is a risk of receiving **fake or low-quality parts**. Always verify the seller s authenticity to avoid receiving a substandard replacement.
3. **Labor Costs if Professional Installation is Needed** While the part itself is straightforward to replace, **dealer labor rates** can be high (often **$100 $200 per hour**). DIY installation is possible but requires mechanical skill and access to tools.
4. **Limited Availability Outside Dealerships** Unlike aftermarket parts, OEM components may not be readily available at **auto parts stores (AutoZone, O Reilly, etc.)**, requiring purchase through **Mercedes-Benz dealerships, authorized distributors, or online specialty retailers**.
5. **Potential Overkill for Minor Issues** If the door latch actuator failure is **cosmetic or due to a minor electrical issue**, some owners might consider **repairing the existing unit** (if still functional) rather than replacing it entirely. However, if the actuator is **seized, corroded, or electrically faulty**, replacement is the best solution.
6. **Shipping and Delivery Delays** OEM parts, especially for luxury vehicles, may have **longer lead times** compared to aftermarket parts. Shipping from overseas suppliers can add weeks to the delivery time.
7. **Mixed Reviews on Aftermarket Alternatives** While OEM is the safest choice, some high-quality aftermarket brands (e.g., **Dorman, ACDelco, or Bosch**) offer **comparable durability at a lower cost**. However, these may not always be as precise a fit as OEM.
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### **Conclusion:**The **Mercedes-Benz 1667230314 front left door lock latch actuator (W166 GL, 2012 2016)** is a **high-quality, direct-fit OEM part** that ensures **reliability, safety, and proper door functionality**. While it comes at a **premium price**, the benefits **long-term durability, warranty coverage, and peace of mind** make it the **best choice for serious owners** who prioritize **original equipment standards**.
For **budget-conscious buyers**, a **high-quality aftermarket alternative** (from a trusted brand) could be a viable option if the part is **properly researched and tested**. However, **cutting corners with unknown brands risks premature failure**, potentially leading to **more expensive repairs down the line**.
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### **Recommendation:** - **If budget is not a concern and reliability is the priority:**- **Purchase from an authorized Mercedes-Benz dealer or a reputable OEM distributor** (e.g., **Mopar, RockAuto, or local Mercedes-Benz parts centers**).
- **Consider professional installation** if unsure about DIY to avoid damaging the door mechanism.
- **Verify the seller s authenticity** to avoid counterfeit parts.
- **If cost is a major factor and the part is not critical:**- **Research aftermarket options** (e.g., **Dorman, ACDelco, or Bosch**) from **trusted retailers** (AutoZone, RockAuto, or specialty luxury parts stores).
- **Check owner forums** (e.g., **Mercedes-Benz World, Benzinga, or Reddit s r/mercedesbenz**) for **real-world performance reviews** on aftermarket alternatives.
- **Proceed with caution** if the part fails early, it may void any warranty and lead to additional costs.
- **For DIYers:**- **Gather the necessary tools** (screwdriver, trim removal tools, wire cutters/strippers if needed).
- **Follow a step-by-step guide** (e.g., **YouTube tutorials from trusted mechanics** or **Mercedes-Benz service manuals**).
- **Test the new actuator thoroughly** before finalizing installation to ensure proper function.
**Final Verdict:**For **most owners**, the **OEM part is the best long-term investment**, especially if the vehicle is **high-mileage or used frequently**. If cost is a concern, **a well-reviewed aftermarket part from a reputable brand** can be a **cost-effective alternative**, but **due diligence is essential** to avoid poor-quality replacements. Always **prioritize quality over price** when it comes to critical safety components like door latch actuators.
ENGINE: 4.7L Twin Turbo Premium Unleaded V-8 M278. Shipping costs are only covered on a case-by-case basis. FRONT LEFT DRIVER SIDE DOOR LOCK LATCH ACTUATOR, WILL FIT 2013 2016 MERCEDES-BENZ X166 GL CLASS 2012 2015 W166 ML CLASS, 2014 GL450 4MATIC 4dr. EXTERIOR COLOR: POLAR WHITE CODE: 149U.
TRANSMISSION: 7 SPEED AUTOMATIC.