MERCEDES 221-730-74-35 Door Lock Benz

( Manufacturer Part Number: 221-730-74-35 ), ( Model: S350 S550 S63 ), ( Part Type: Door Lock ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Mercedes-benz ), ( Parts Included: Only Part Reference 10 On The Diagram Is Included )

Review MERCEDES benz Genuine Door Lock fits S350 2013

The **Mercedes-Benz 221-730-74-35** is a high-quality, precision-engineered door lock assembly designed exclusively for select models within the Mercedes-Benz W210 and W211 series, including the E-Class and S-Class coupes and sedans produced between the late 1990s and early 2000s. This lock mechanism is a critical component of the vehicle s security and functionality, ensuring smooth operation of the power door locks while maintaining the iconic Mercedes-Benz level of reliability and sophistication. Crafted from durable materials, including hardened steel and corrosion-resistant alloys, the 221-730-74-35 is built to withstand the rigors of daily use, extreme weather conditions, and the demands of high-performance driving. The lock features a robust internal spring mechanism that provides consistent, responsive action, allowing for effortless locking and unlocking whether manually or via the vehicle s integrated electrical system. Its design incorporates a precise pin-and-tumbler arrangement, ensuring secure engagement with the door latch while minimizing wear over time. The assembly also includes a weatherstripping seal to prevent water ingress, a common issue in older vehicles, thus protecting the lock mechanism from rust and premature failure. Compatible with the original wiring harness and actuator, this replacement lock is a direct-fit solution that restores both the aesthetic and functional integrity of the door, maintaining the vehicle s resale value and driving experience. Whether replacing a worn-out original component or upgrading an aftermarket installation, the 221-730-74-35 is a dependable choice for enthusiasts and professionals seeking authenticity and performance in their Mercedes-Benz restoration or maintenance project.

### Pros and Cons of Buying a Mercedes-Benz 221.730.74 35-Door Lock

The **Mercedes-Benz 221.730.74** is a door lock mechanism commonly found in older Mercedes-Benz vehicles, particularly from the 1990s and early 2000s. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **Compatibility with Classic Mercedes Models**

- This lock is designed for specific Mercedes-Benz vehicles, ensuring a perfect fit for models like the W210 (E-Class), W140 (S-Class), or W203 (C-Class) from the late 1990s to early 2000s.

- It is part of the **Skelett-Schloss (skeleton lock)** system, which was widely used in these generations for improved security and functionality.

2. **Durability and Reliability**

- Mercedes-Benz components, even older ones, are generally built to last with proper maintenance. The 221.730.74 lock is no exception, especially if sourced from a reputable supplier.

- The mechanism is robust, designed to withstand frequent use without excessive wear.

3. **Security Features**

- The skeleton lock system includes anti-theft measures such as **central locking, child safety locks, and immobilizer compatibility** (depending on the vehicle s security system).

- It integrates well with electronic key systems, reducing the risk of unauthorized access compared to simpler mechanical locks.

4. **Aftermarket Availability**

- As a common part, it is widely available through **Mercedes-Benz dealerships, specialty auto parts stores, and online retailers** (e.g., eBay, Amazon, or European auto part suppliers).

- Replacement locks are often cheaper than OEM parts from newer models, making it a cost-effective solution for restorations or repairs.

5. **Ease of Installation (for Qualified Mechanics)**

- While installation requires some mechanical skill, the design is straightforward for someone familiar with Mercedes-Benz door lock systems.

- Many mechanics have experience working with this part, reducing the risk of installation errors.

6. **Compatibility with Upgrades**

- If you re restoring or modifying an older Mercedes, this lock can be paired with modern electronics (e.g., keyless entry systems) with minimal adjustments.

---

### **Cons**

1. **Age-Related Wear and Availability of Spare Parts**

- The lock is from an older generation, meaning **seals, springs, and internal components may degrade over time**, leading to sticking or failure.

- Some sub-components (e.g., specific springs or pins) may be harder to find if the original part is no longer in production.

2. **Potential for Rust and Corrosion**

- Older Mercedes parts, especially those from vehicles exposed to harsh weather, may suffer from **rust or corrosion**, particularly in the locking mechanism or hinge points.

- This can affect smooth operation and may require additional cleaning or lubrication.

3. **Compatibility Issues with Modern Systems**

- If your vehicle has been modified with **aftermarket electronics (e.g., keyless entry, alarm systems, or immobilizers)**, the 221.730.74 lock may not integrate seamlessly.

- Some newer security systems require **specific lock codes or programming**, which may not be compatible without additional work.

4. **Higher Cost Than Basic Mechanical Locks**

- While cheaper than OEM parts for newer models, the 221.730.74 lock is still more expensive than a **basic mechanical door lock** (e.g., those found in older Japanese or European cars).

- If you re on a tight budget, you may need to weigh the cost against the benefits of Mercedes-Benz-specific functionality.

5. **Specialized Knowledge Required for Repair**

- Unlike universal locks, this part requires **knowledge of Mercedes-Benz door lock systems**, including wiring diagrams and specific tools (e.g., lock pullers, torque wrenches).

- A non-experienced DIYer may struggle with installation or troubleshooting issues.

6. **Potential for Counterfeit Parts**

- Due to its popularity, there is a risk of purchasing **counterfeit or low-quality replicas**, especially from untrusted online sellers.

- Always buy from **authorized dealers or reputable suppliers** to ensure authenticity and quality.

7. **Limited Longevity Compared to Newer Models**

- While durable, the lock is not designed for the same level of refinement as modern Mercedes-Benz systems, which may include **self-diagnostic features, keyless entry, and advanced security protocols**.

- If you plan to keep the vehicle long-term, you may eventually need to upgrade to a newer lock system.

---

### **Conclusion**

The **Mercedes-Benz 221.730.74 35-door lock** is a **reliable, high-quality component** for restoring or maintaining older Mercedes-Benz vehicles from the late 1990s and early 2000s. Its **security features, compatibility with classic models, and durability** make it a strong choice for enthusiasts and mechanics working on these cars.

However, its **age-related wear risks, potential compatibility issues with modern systems, and the need for specialized knowledge** are significant drawbacks. If you re working on a **restoration project** or need a **direct replacement for a failing lock**, this part is an excellent option. But if you re looking for **long-term reliability with minimal maintenance**, you may need to consider **upgrading to a newer lock system** or ensuring the vehicle is well-maintained.

---

### **Recommendation**

- You are restoring or repairing a **specific Mercedes-Benz model from the 1990s/early 2000s**.

- You have access to **specialized tools and mechanical knowledge** for installation.

- You prioritize **authentic Mercedes-Benz functionality** over the latest technology.

- You source it from a **trusted supplier** to avoid counterfeit parts.

- You re working on a **budget** and can find a **high-quality universal lock** that fits.

- Your vehicle has **modern electronics** that may not integrate well with this older lock.

- You re unsure about **installation or maintenance** and prefer professional help.

- You plan to **keep the vehicle long-term** and want a more future-proof solution.

For most **classic Mercedes-Benz owners**, the 221.730.74 lock remains a **practical and effective choice**, provided you address potential wear and compatibility concerns proactively. Always **inspect the part upon arrival** and **test it thoroughly** before final installation.

Details:

Staff should pay attention to detail ensure that the right parts are ordered and they meet necessary quality standard's. Attention to Detail: Precision is vital when it comes automotive parts. Electrical parts are not returnable. A good parts team should have the ability to communicate effectively with service technicians ensure correct are ordered and installed.

Parts must be resalable and in the original packaging. They should be able to accurately identify and source the right parts for specific vehicle model's. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Continuous Improvement: A great parts department is always looking for ways to improve its services.

part #: 2217307435 price

• $78.85

specifications carlockiio:

• for makes: Mercedes
• for years: 2013
• mpn: 221-730-74-35
• model: S350 S550 S63
• part type: Door Lock
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Mercedes-benz
• parts included: Only Part Reference 10 On The Diagram Is Included

returns carlockiio:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

payments carlockiio:

• other
• wallet: Google-pay
• credit card: Mastercard

general carlockiio:

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

offer carlockiio:

• availability: In Stock
• quantity: 3
• sold: 0
• options: Ship-to-home
• started: May 3, 2026

shipping carlockiio:

• transit: 4-10 Days
• cost: $23.33
• type: Fixed
• service: Standard
• class: Standard

seller carlockiio:

• # reviews: 661
• rating: 99.1%
• city: Covington, Louisiana

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