fits make: Mercedes. year: 1977–1985.

( Manufacturer Part Number: 11466XYWQ ), ( Part Type: Fuel Actuator Door Filler Lock ), ( Years: 1985 1983 1984 1982 1977 1978 1979 1980 1981 ), ( Manufacturer Warranty: 12 Month Warranty ), ( Cs-sku: 400 ), ( Application: Mercedes 300d Fuel Filler Door Lock Actuator ), ( Notes: Fuel Door Actuator )
The **11466XYWQ** is a precision-engineered **fuel filler door lock actuator** designed exclusively for **Mercedes-Benz models from 1977 to 1985**, specifically tailored to the **W116 chassis** (including the **300D** and its variants). This critical component plays a pivotal role in the vehicle s fuel system security, ensuring the fuel filler door remains securely latched while preventing unauthorized access or accidental opening during operation. Crafted from high-grade **stamped steel and durable plastic**, the actuator is built to withstand the rigors of daily use, offering reliable performance even in harsh environmental conditions. Its **mechanical linkage system** integrates seamlessly with the door s locking mechanism, providing smooth and consistent engagement when the fuel cap is inserted or removed, while also preventing the door from opening mid-drive a safety feature essential for preventing fuel spillage and potential fire hazards.
The **11466XYWQ** is engineered with **OEM-level precision**, ensuring an exact fit with the original Mercedes-Benz design, including the **spring-loaded mechanism** that maintains tension on the latch, guaranteeing a secure seal. Unlike aftermarket alternatives that may compromise on build quality, this actuator is **directly compatible** with the vehicle s wiring harness and locking system, eliminating the need for modifications or additional adapters. Its **robust construction** resists corrosion, wear, and fatigue, making it a long-lasting solution for restoring or maintaining the integrity of the fuel filler door on classic Mercedes-Benz models. Whether replacing a worn-out original part or upgrading a restored vehicle, this actuator delivers the **authentic performance and reliability** expected from Mercedes engineering, ensuring both functionality and aesthetic continuity with the vehicle s original design.
**Pros and Cons of Buying an 11466XYWQ Fuel Filler Door Lock Actuator for a 1977-1985 Mercedes 300D**
### **Pros**
1. **Direct Fitment** The part number **11466XYWQ** is specifically designed for the 1977-1985 Mercedes-Benz 300D, ensuring compatibility without modifications. This reduces the risk of installation issues due to incorrect sizing or mounting.
2. **OEM Quality** If sourced from a reputable supplier (such as an authorized Mercedes-Benz dealer, eBay with verified sellers, or a trusted aftermarket parts distributor), this part should meet or exceed the original equipment manufacturer s (OEM) standards. This means better durability and reliability compared to generic or low-quality aftermarket alternatives.
3. **Reliability** The fuel filler door lock actuator is a critical component for security and functionality. A genuine or high-quality replacement ensures smooth operation, reducing the likelihood of frequent failures or malfunctions.
4. **Ease of Installation** Many owners report that this actuator is relatively straightforward to install, especially if they have basic mechanical skills. The part typically requires removal of the fuel filler door, disconnecting wiring, and securing the new actuator in place.
5. **Prevents Theft** A faulty or missing actuator can leave the fuel filler door unlocked, making the vehicle vulnerable to fuel siphoning or theft. Replacing it restores security.
6. **Compatibility with Aftermarket Upgrades** If you plan to modify your 300D (e.g., adding a secondary fuel tank or upgrading the fuel system), this actuator will integrate seamlessly with other compatible components.
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### **Cons**
1. **Cost** OEM or high-quality aftermarket actuators for a vintage Mercedes can be expensive, often ranging from **$80 to $200 **, depending on the source. This may be a significant investment for owners on a tight budget.
2. **Limited Availability** Finding a genuine OEM part can be challenging, especially if purchasing from a non-authorized source. Some sellers may offer counterfeit or refurbished parts that don t meet specifications, leading to premature failure.
3. **Potential Counterfeit Parts** Due to the popularity of vintage Mercedes parts, the market is flooded with knockoffs. These may not fit properly, lack durability, or fail quickly, wasting money and time on replacements.
4. **Wiring or Electrical Issues** If the original wiring harness is damaged or corroded, simply replacing the actuator may not solve the problem. You may need to inspect and repair the wiring or connectors simultaneously, adding to labor costs.
5. **Skill Dependency** While the installation is manageable for those with mechanical experience, inexperienced DIYers might struggle with disassembly, wiring, or reassembly. Professional installation could incur additional labor fees.
6. **Age-Related Wear** If the rest of the fuel filler door mechanism (hinges, latch, or frame) is worn or rusted, replacing just the actuator may not fully resolve the issue. A complete overhaul might be necessary.
7. **Limited Warranty** Many aftermarket parts come with short or no warranties, leaving you liable for any defects. OEM parts may have better coverage but are often more expensive.
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### **Conclusion**
The **11466XYWQ fuel filler door lock actuator** is a critical and often overlooked part for maintaining the functionality and security of your 1977-1985 Mercedes 300D. While it offers **reliability, direct fitment, and peace of mind**, the **high cost, potential for counterfeit parts, and additional labor considerations** must be weighed carefully.
If you prioritize **long-term reliability and security**, investing in a **genuine or high-quality aftermarket part** from a trusted source is justified. However, if budget is a concern, thoroughly research the seller and consider whether the part is truly necessary (e.g., if the issue stems from wiring or other components).
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### **Recommendation**
1. **Verify the Part Number** Double-check that **11466XYWQ** is indeed the correct part for your specific model year and variant (e.g., 300D 240, 260, or 280). Some early 300D models may use slightly different actuators.
2. **Purchase from a Reputable Source**
- **Authorized Mercedes-Benz dealers** (most reliable but expensive).
- **Specialized vintage Mercedes parts suppliers** (e.g., MB-Parts, Classic Mercedes Parts, or eBay sellers with verified feedback).
- Avoid unknown sellers offering parts at suspiciously low prices.
3. **Inspect the Wiring and Door Mechanism** Before purchasing, ensure that the issue isn t caused by **corroded wiring, a faulty latch, or a damaged door frame**. Addressing these simultaneously will prevent future problems.
4. **Consider Professional Installation** If you re unsure about wiring or mechanical work, a **Mercedes specialist** can ensure proper installation, reducing the risk of recurring issues.
5. **Budget for Potential Additional Costs** Account for **labor (if outsourcing), tools (e.g., torque wrench, crimping tools), or spare wiring** if the harness is damaged.
6. **Check for Alternatives** If the actuator is beyond repair, explore **aftermarket brands like ACDelco, Bosch, or local vintage auto parts shops**, which may offer comparable parts at a lower cost.
**Final Verdict:** For most owners, replacing the actuator with a **verified OEM or high-quality aftermarket part** is the best long-term solution. However, **shop smartly, inspect the surrounding components, and don t hesitate to seek professional help** if needed. This ensures your 300D remains secure, functional, and reliable for years to come.
For 1977 1985 Mercedes 300D Fuel Filler Door Lock Actuator Genuine 11466XYWQ. Shipped with USPS Ground Advantage. Condition is New.