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MERCEDES Front Right Passenger Door Lock Latch Actuator Benz

fits model: R129, Sl320, Sl500, Sl600. make: Mercedes. year: 1994–2002.

Mercedes-benz 129 R129 Sl320 Sl500 Sl600 94-02 Front Right Passenger Side Door Lock Latch Actuator

( Part Type: Actuator Door Lock Latch ), ( Ipn: 129 R129 Sl320 Sl500 Sl600 ), ( Manufacturer Warranty: 6 Month ), ( Fitment Type: Direct Replacement ), ( Finish: Oem ), ( Country Of Origin: Germany ), ( Placement On Vehicle: Right, Front )

Review MERCEDES benz 129 Front Right Passenger Side Door Lock Latch Actuator fits R129 SL320 SL500 SL600 1994–2002

The **Mercedes-Benz 129 (W129) SL320, SL500, and SL600 (1994 2002) Front Right Passenger Door Lock Latch Actuator** is a precision-engineered component integral to the vehicle s door locking mechanism, designed to ensure smooth, reliable operation while maintaining the iconic luxury and performance synonymous with the legendary W129 SL series. This actuator, typically found within the door s inner panel assembly, is responsible for engaging and disengaging the door latch when the lock lever is activated, whether manually or via the central locking system. Crafted to withstand the demands of high-performance driving combined with the refined comfort expected from a Mercedes-Benz this part is built with durable materials, including high-grade plastics and reinforced metal components, to endure frequent use without wear or failure. The actuator s design incorporates a robust solenoid mechanism, allowing for precise electrical activation, which is critical for seamless integration with the vehicle s electronic control modules. Whether in the sleek, sporty SL320 or the more luxurious SL500 and SL600 variants, this component plays a vital role in maintaining the vehicle s signature blend of elegance and functionality. For restoration or replacement projects, sourcing an authentic OEM or high-quality aftermarket actuator ensures compatibility with the original wiring harness and door panel structure, preserving both performance and aesthetic integrity. Proper installation requires careful alignment with the door latch assembly and secure fastening to prevent rattles or misalignment, which could compromise the door s sealing and overall driving experience. Ideal for collectors, enthusiasts, or mechanics restoring these timeless grand tourers, this actuator exemplifies Mercedes-Benz s commitment to engineering excellence in every detail.

### **Pros and Cons of Buying a Mercedes-Benz R129 SL (1994 2002) Front Right Passenger Door Lock Latch Actuator**

#### **Pros of purchasing a Part**

1. **Direct Fitment** The part is designed specifically for the R129 SL (1994 2002) models (SL320, SL500, SL600), ensuring compatibility without modifications.

2. **Reliability** Mercedes-Benz parts, even aftermarket or remanufactured ones, are generally built to high standards, reducing the risk of premature failure.

3. **Prevents Further Damage** A faulty door latch actuator can cause misalignment, improper door sealing, or even electrical issues if left unaddressed. Replacing it early prevents secondary problems.

4. **Improves Functionality** A new or refurbished actuator ensures smooth door operation, reducing frustration during use.

5. **Potential Cost Savings** Purchasing the part outright (rather than paying labor-only for a dealer) can be more economical, especially if you plan to install it yourself.

6. **Accessibility of Parts** The R129 SL is a classic model, but its parts are still available through specialty suppliers, making sourcing easier than for older or rarer Mercedes models.

7. **Compatibility with Aftermarket Upgrades** If you plan to modify your SL (e.g., performance tuning, interior upgrades), a reliable door latch actuator ensures compatibility with new components.

#### **Cons of purchasing a Part**

1. **Cost** Depending on the source (OEM, remanufactured, or aftermarket), the part may be expensive, especially for high-end models like the SL600. Prices can range from **$100 $300 **, depending on condition and supplier.

2. **Installation Complexity** The R129 SL s door latch mechanism is intricate, and improper installation can lead to misalignment, electrical issues, or even damage to the door panel. DIY installation may require patience and mechanical skill.

3. **Potential Counterfeit Parts** If buying from an untrusted seller (e.g., eBay, Craigslist, or unknown online marketplaces), there is a risk of receiving a **fake or low-quality part** that fails quickly.

4. **Additional Labor Costs** If you do not have the tools or expertise to install it yourself, labor costs at a Mercedes specialist or dealership can add **$150 $300 ** to the total expense.

5. **Warranty Limitations** Aftermarket or remanufactured parts may not come with a full warranty, whereas OEM parts often include limited warranties. If the part fails soon after installation, replacement costs could be higher.

6. **Electrical Compatibility Issues** If the original wiring harness is damaged or the new actuator has different pin configurations, additional wiring work may be required, increasing complexity.

7. **Opportunity Cost** If the car has other major issues (e.g., suspension, engine, electrical), spending money on a door latch actuator may not be the highest priority, potentially delaying more critical repairs.

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### **Conclusion**

Buying a **front right passenger door lock latch actuator for your R129 SL (1994 2002)** is a **practical and often necessary** repair if the current unit is failing. The part ensures proper door function, prevents further damage, and maintains the car s reliability especially important for a luxury vehicle like the SL. However, the **cost, installation difficulty, and risk of counterfeit parts** must be carefully considered.

If you are **mechanically inclined and have access to the right tools**, purchasing and installing the part yourself can be a **cost-effective solution**. If not, factoring in labor costs may make it less appealing. **Prioritize buying from a reputable supplier** (e.g., **Mercedes-Benz Parts Specialists, eBay Motors with verified sellers, or trusted classic car part dealers**) to avoid counterfeit or low-quality replacements.

For those who **value convenience and expertise**, visiting a **Mercedes specialist or dealership** for installation may be worth the extra expense, as they can ensure proper fitting and diagnose any related issues.

### **Final Recommendation**

- **If the part is failing and causing inconvenience**, **purchase a high-quality actuator** (preferably OEM or a well-reviewed aftermarket brand like **Daimler, ACDelco, or a trusted remanufacturer**).

- **Verify the part s compatibility** with your exact model year and trim (SL320, SL500, SL600) before buying.

- **Consider DIY installation** if you have experience with automotive repairs, but **proceed cautiously** misalignment can lead to further problems.

- **If unsure about installation**, **consult a Mercedes specialist** to assess whether the repair is worth the cost relative to the car s overall condition.

- **Avoid cheap or untested parts** investing a little more upfront can save frustration and additional expenses later.

For most owners, **this is a worthwhile repair** to maintain the SL s functionality and luxury feel, but weigh the **immediate need vs. long-term value** of the vehicle.

Details:

94-02 Mercedes R129 SL500 Front Right Passenger Side Door Lock Latch Actuator. This is a used part in working condition.

specifications carlockiio:

  • for models: R129, Sl320, Sl500, Sl600
  • for makes: Mercedes
  • for years: 1994-2002
  • part type: Actuator Door Lock Latch
  • ipn: 129 R129 Sl320 Sl500 Sl600
  • manufacturer warranty: 6 Month
  • fitment type: Direct Replacement
  • finish: Oem
  • country of origin: Germany
  • placement on vehicle: Right, Front

offer carlockiio:

  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • started: February 12, 2026
  • availability: In Stock

seller carlockiio:

  • city: York, Pennsylvania
  • rating: 90.0%
  • # reviews: 60

shipping carlockiio:

  • type: Calculated
  • carrier: FedEx
  • transit: 5-11 Days
  • class: Standard
  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery

returns carlockiio:

  • policy: No Returns

payments carlockiio:

  • credit card: Visa
  • wallet: Google-pay
  • other
  • money order

general carlockiio:

  • condition: Used
  • Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
for models: r129, sl320, sl500, sl600, for makes: mercedes, for years: 1994-2002, part type: actuator door lock latch, manufacturer warranty: 6 month, fitment type: direct replacement, finish: oem, country of origin: germany, placement on vehicle: right, front,
category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 29663514614760602,
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