MERCEDES Rh Rear Door Lock Actuator Wrnty 643.MB1B15 Benz 1YR

( Part Type: Actuator Door Lock ), ( Conditions Options: Rh Rear Door Lock Actuator ), ( Genuine Oem: Yes ), ( Ipn: 643.mb1b15 ), ( Make: Mercedes-benz ), ( Manufacturer Warranty: 1 Year ), ( Partout Id: A-131486343 )

Review MERCEDES benz Rh Rear Door Lock Actuator Oem 1yr Wrnty fits C300 2015

The **Mercedes-Benz 643.MB1B15 RH Rear Door Lock Actuator** is a precision-engineered component designed exclusively for the **2015 Mercedes-Benz C300 (C205 generation)**, ensuring seamless operation of the right-hand-side rear door locking mechanism. This actuator is a critical part of the vehicle s electrical door lock system, responsible for smoothly engaging and disengaging the door locks upon activation via the interior or exterior controls, keyless entry, or remote fob. Crafted to Mercedes-Benz s exacting standards, this actuator features a robust **DC motor-driven mechanism** with a durable **gear reduction system**, delivering reliable and consistent performance even after prolonged use. The unit is built with **high-quality plastic and metal components**, including a **corrosion-resistant housing** and **precision-machined internal gears**, which minimize wear and prevent premature failure. Its **direct-fit compatibility** ensures an easy installation process, requiring no modifications to the vehicle s wiring or mounting points, making it an ideal replacement for the original equipment (OEM) actuator when faced with malfunctions such as slow response, intermittent locking, or complete failure. Backed by a **one-year warranty**, this actuator provides peace of mind, guaranteeing long-term reliability and compatibility with the C300 s advanced door lock electronics. Whether replacing a faulty unit due to age, wear, or accidental damage, this actuator restores the door lock system to optimal functionality, maintaining the vehicle s signature blend of luxury and precision engineering.

**Pros and Cons of buying a Mercedes-Benz 643.MB1B15 RH Rear Door Lock Actuator (2015 C300, 1-Year Warranty)**

1. **Direct Compatibility** The part is specifically listed for the 2015 Mercedes-Benz C300, ensuring a proper fit without modification. This reduces the risk of installation issues or compatibility problems.

2. **Warranty Coverage** The inclusion of a 1-year warranty provides some assurance against defects in material or workmanship. If the part fails prematurely due to manufacturing flaws, the seller is obligated to replace or refund it within the warranty period.

3. **Potential Cost Savings** Purchasing directly from a reputable seller (e.g., an authorized dealer, OEM supplier, or trusted aftermarket vendor) may be cheaper than buying from a dealership, especially if the part is sourced from a bulk supplier or auction.

4. **Ease of Installation** As a direct replacement part, the actuator should be relatively straightforward to install, assuming the buyer has basic mechanical skills or access to a mechanic. The 2015 C300 s design is not overly complex for this type of repair.

5. **Prevents Further Damage** A faulty rear door lock actuator can lead to electrical issues, door malfunctions, or even damage to wiring over time. Replacing it promptly can prevent more extensive (and costly) repairs.

6. **Access to OEM Quality** If the part is genuine or high-quality aftermarket, it will meet Mercedes-Benz s engineering standards, ensuring durability and reliability comparable to factory parts.

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1. **Potential Counterfeit Risk** Without verification, there is a risk of purchasing a fake or low-quality aftermarket part, especially if buying from an unverified seller. Counterfeit parts may fail prematurely or lack proper certifications.

2. **Limited Warranty Duration** A 1-year warranty is relatively short for a critical component like a door lock actuator. If the part fails after the warranty expires, the buyer may incur additional costs for replacement or repair.

3. **Installation Complexity** While the part itself may be simple, the installation process could require disassembling the door panel, which may be time-consuming or challenging for inexperienced DIYers. Improper installation could lead to further damage or recurring issues.

4. **Labor Costs (If Not DIY)** If the buyer does not have the skills or tools to install the part themselves, they will need to pay a mechanic, which could offset some of the cost savings from purchasing the part separately.

5. **Availability of Genuine Parts** Genuine Mercedes-Benz parts can be expensive, and even aftermarket parts may not always be readily available from all sellers. Some buyers may struggle to find the exact part number or may receive a substitute that doesn t fit perfectly.

6. **Electrical or System Compatibility Issues** In rare cases, the actuator may not work correctly due to software glitches, wiring issues, or conflicts with the vehicle s electrical system. This could require additional diagnostics or repairs beyond just replacing the part.

7. **No Return Policy Risk** Some sellers have restrictive return policies, especially for used or refurbished parts. If the part arrives damaged or incorrect, the buyer may face difficulties getting a refund or replacement.

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Buying the **Mercedes-Benz 643.MB1B15 RH Rear Door Lock Actuator (2015 C300) with a 1-year warranty** can be a practical and cost-effective solution for addressing a faulty door lock actuator, provided the buyer takes precautions to ensure authenticity and quality. The part s direct compatibility and warranty coverage are significant advantages, while risks like counterfeit parts, limited warranty duration, and potential installation challenges must be carefully considered.

For buyers with mechanical experience or access to a trusted mechanic, this purchase is likely a sound investment to prevent further damage and restore functionality. However, those unfamiliar with automotive repairs should weigh the cost of professional installation against the potential savings.

- **Verify the Seller:** Purchase from a reputable source, such as an authorized Mercedes-Benz parts dealer, a trusted aftermarket supplier (e.g., RockAuto, Amazon with verified sellers, or eBay with positive feedback), or a local Mercedes-Benz service center. Avoid unknown or untrusted sellers to minimize the risk of counterfeit parts.

- **Check for Genuine or High-Quality Aftermarket:** If cost is a concern, opt for a reputable aftermarket brand (e.g., ACDelco, Bosch, or Dorman) that offers warranties. Ensure the part is compatible with the 2015 C300 s electrical system.

- **Prepare for Installation:** If installing yourself, gather the necessary tools (e.g., door panel removal tools, socket set, wiring diagram) and follow a detailed repair guide. If unsure, consult a mechanic for installation to avoid voiding warranties or causing further damage.

- **Review Warranty Terms:** Confirm the warranty covers defects and includes labor if applicable. Keep receipts and documentation for future reference.

- **Consider Professional Diagnosis:** Before purchasing, ensure the issue is indeed a faulty actuator (e.g., check for electrical faults, wiring damage, or software issues) to avoid unnecessary expenses.

**Final Verdict:** This purchase is **recommended for buyers who prioritize compatibility, warranty protection, and cost efficiency**, provided they source the part responsibly and are prepared for installation. For those without mechanical experience, factoring in professional installation costs may make the repair less cost-effective. Always prioritize quality and authenticity to ensure long-term reliability.

Details:

Please compare part numbers BEFORE purchasing. C300 2015 Lock Actuator 10720463: RH REAR DOOR LOCK ACTUATOR Included: Hassle-free 1 Year Warranty Our Part #: 10720463. Image shown may be the vehicle from which part was pulled, or a generic image representing typical stock, rather than unique item being sold. Free shipping only applies to items you keep.

Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. Easy to find parts that don't require a mechanics knowledge. Very happy customer, excellent value and service. More Parts: 1 Year Warranty.

Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Please disregard other fitment charts they may not be correct. Quality, Assured Parts All are Quality Tested Inspected. If something is wrong with an order, we certainly do want to help you.

specifications carlockiio:

• for models: C300
• for makes: Mercedes
• for years: 2015
• part type: Actuator Door Lock
• conditions options: Rh Rear Door Lock Actuator
• genuine oem: Yes
• ipn: 643.mb1b15
• make: Mercedes-benz
• manufacturer warranty: 1 Year
• partout id: A-131486343

seller carlockiio:

• rating: 97.2%
• city: Rancho Cordova, California
• # reviews: 23700

offer carlockiio:

• started: June 5, 2026
• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• best offers: True

returns carlockiio:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

shipping carlockiio:

• service: Flat Rate Freight
• cost: $20.00
• type: Fixed
• class: Freight

payments carlockiio:

• wallet: Paypal
• other
• credit card: Visa

general carlockiio:

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

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