MERCEDES Rear Left Driver Door Lock Actuator Handle Latch 222-730-11-35 Benz X166

( Manufacturer Part Number: 2227301135 ), ( Type: Door Lock ), ( Ipn: 222 730 11 35 ), ( Oe/oem Part Number: A2227301135, A0997304500 ), ( Color: Black ), ( Material: Plastic ), ( Features: Soft Close, Keyless Go ), ( Country Of Origin: Germany ), ( Placement On Vehicle: Left, Lower, Rear, Door, Driver, Driver Side, Rear Left )

Review MERCEDES benz Rear Left Driver Door Lock Actuator Handle Latch Mechanism fits W166

The **Mercedes-Benz 2227301135 (W166/X166 Rear Left Driver Door Lock Actuator Handle Latch)** is a precision-engineered component designed exclusively for the iconic **Mercedes-Benz W166 and X166 series**, including models such as the **S-Class (W166) and the E-Class (X166)** from the late 1990s and early 2000s. This high-performance door latch actuator serves as the critical interface between the driver s door handle and the internal locking mechanism, ensuring smooth, reliable operation while maintaining the vehicle s signature blend of luxury and engineering excellence. Crafted from durable, corrosion-resistant materials, this component is built to withstand the demands of daily use, from the gentle press of a door handle to the robust forces exerted during aggressive door closures. The actuator features a robust internal spring mechanism and a precision-machined latch assembly, allowing for seamless engagement and disengagement of the door lock, whether in the locked, unlocked, or child-safety positions. Its design incorporates a **tamper-resistant latch** to prevent accidental unlocking, enhancing both security and convenience, while the integrated **door ajar warning system** ensures that the driver is alerted if the door is left open, a feature essential for maintaining the vehicle s refined safety standards. Compatible with the original wiring harness and electrical system, this actuator seamlessly integrates into the existing door mechanism, preserving the vehicle s factory functionality without compromising on performance. Whether restoring a classic Mercedes-Benz to its former glory or addressing a worn-out component in a well-maintained luxury sedan, this **OEM-quality actuator** delivers the reliability and precision expected from the legendary German automaker. Its meticulous construction and adherence to Mercedes-Benz engineering standards make it an ideal replacement for those seeking to uphold the vehicle s integrity, ensuring that every aspect of the door operation from the smooth glide of the handle to the secure click of the latch operates with the same level of sophistication and durability as the original.

### **Pros and Cons of buying a Mercedes-Benz W166/X166 Rear Left Driver Door Lock Actuator Handle Latch (Part Number: 2227301135)**

1. **Direct Fitment** This part is specifically designed for the Mercedes-Benz W166 (SL-Class) and X166 (SLK-Class) models, ensuring compatibility without modifications.

2. **OEM Quality** As an original equipment manufacturer (OEM) or high-quality aftermarket part, it should meet Mercedes-Benz s engineering standards, reducing the risk of premature failure.

3. **Reliability** The door lock actuator and latch mechanism is a critical component; a genuine or well-reputed aftermarket part minimizes the chance of malfunction, which could lead to door misalignment or failure to lock/unlock.

4. **Prevents Further Damage** If the existing part is worn or broken, replacing it early can prevent secondary issues, such as misaligned door seals, electrical problems, or difficulty in opening/closing the door.

5. **Aesthetic and Functionality** Ensures the door operates smoothly and maintains the vehicle s original appearance, which is important for classic or high-value cars.

6. **Warranty Coverage** If purchasing from a reputable seller (e.g., an authorized dealer or trusted aftermarket supplier), the part may come with a warranty, offering peace of mind.

7. **Ease of Installation** While some mechanical parts require skill to install, this latch and actuator are relatively straightforward for those with basic automotive knowledge or with the help of a mechanic.

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1. **Cost** OEM parts can be expensive, especially for older Mercedes-Benz models. Aftermarket alternatives may offer cost savings but could vary in quality.

2. **Availability and Lead Time** Depending on the supplier, obtaining the part may take time, particularly if it s a discontinued model or requires special ordering.

3. **Installation Complexity** While not overly difficult, removing the old part and installing the new one may require disassembling parts of the door panel, which could be time-consuming for inexperienced DIYers.

4. **Compatibility Risks** If the part is not 100% authentic (e.g., a knockoff aftermarket part), it may not fit perfectly, leading to binding, misalignment, or premature wear.

5. **Electrical Issues** If the door lock mechanism is electrically actuated, a faulty part could interfere with the vehicle s central locking system, requiring troubleshooting.

6. **Potential for Counterfeit Parts** Purchasing from untrusted sellers increases the risk of receiving a substandard or fake part, which could fail quickly or not fit correctly.

7. **Labor Costs** If professional installation is required, labor fees (especially for classic cars) can add to the total expense.

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The Mercedes-Benz W166/X166 rear left driver door lock actuator handle latch (2227301135) is a critical component that ensures proper door function and security. **Replacing a worn or broken part is advisable to prevent further damage, maintain vehicle integrity, and avoid inconvenience.** However, the decision to buy should consider the **cost, part authenticity, installation feasibility, and long-term reliability.**

For owners comfortable with minor repairs, purchasing from a **trusted supplier (e.g., an authorized Mercedes-Benz parts dealer or a reputable aftermarket specialist like Mopar, Bosch, or local classic car part shops)** is recommended. If unsure about installation, consulting a mechanic familiar with Mercedes-Benz models is wise.

- **If the part is failing and causing issues**, prioritize replacing it with an **OEM or high-quality aftermarket part** to avoid long-term problems.

- **Verify the seller s reputation** to ensure authenticity and avoid counterfeit parts.

- **Budget for installation costs** if DIY is not an option, especially for classic cars where precision is crucial.

- **Consider a warranty** if available to protect against early failure.

For most owners, the **benefits of a reliable, properly functioning door mechanism outweigh the costs and effort**, making this a worthwhile replacement.

Details:

This listing is for a Mercedes OEM Rear Door Lock. SHIPPING IS ONLY FREE TO 48 LOWER STATES. This Lock is in good working condition.

part #: 2227301135 prices

• $42.90-$81.28

specifications carlockiio:

• for models: W166
• for makes: Mercedes
• mpn: 2227301135
• type: Door Lock
• ipn: 222 730 11 35
• oe/oem part number: A2227301135, A0997304500
• color: Black
• material: Plastic
• features: Soft Close, Keyless Go
• country of origin: Germany
• placement on vehicle: Left, Lower, Rear, Door, Driver, Driver Side, Rear Left

general carlockiio:

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

shipping carlockiio:

• cost: $20.00
• class: Standard
• carrier: USPS
• transit: 3-9 Days
• service: USPS Ground Advantage
• type: Fixed

payments carlockiio:

• wallet: Apple-pay
• credit card: Discover
• other

returns carlockiio:

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

offer carlockiio:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 21, 2026

seller carlockiio:

• rating: 99.8%
• city: North Highlands, California
• # reviews: 2894

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