MERCEDES 4477408300 Lock Metris Benz

( Manufacturer Part Number: 4477408300 ), ( Model: METRIS ), ( Part Type: Lock ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Mercedes-benz ), ( Year: 2016 2017 2018 2019 2020 2021 2022 2023 ), ( Parts Included: Only Part Reference 13 On The Diagram Is Included ), ( Replaces Part Number: 4477400635, 4477407400 )

Review MERCEDES benz Genuine Lock Assembly fits 2016–2023

The **Mercedes-Benz 4477408300 Lock** is a high-performance, precision-engineered electronic door lock module designed exclusively for select Mercedes-Benz vehicles, ensuring seamless integration with the latest security and convenience systems. This lock assembly is a critical component of the car s central locking mechanism, featuring a robust and durable construction that combines advanced electronics with reliable mechanical functionality. Built with Mercedes-Benz s signature attention to detail, the 4477408300 lock incorporates a sophisticated motorized actuator that delivers smooth, silent operation, eliminating the need for manual intervention while maintaining a premium level of refinement. The lock is engineered to withstand the rigors of daily use, offering resistance to environmental factors such as moisture, dust, and temperature fluctuations, ensuring long-term reliability even in challenging conditions.

At its core, the 4477408300 lock integrates with the vehicle s **Keyless Access and Push-Start** system, allowing for effortless entry and ignition activation via the intelligent key fob or push-button start. The lock module communicates wirelessly with the car s central control unit, enabling features like remote locking/unlocking, panic alarm activation, and integration with advanced driver-assistance systems. The electronic components within the lock are housed in a compact yet sturdy housing, designed to fit seamlessly into the vehicle s door panel without compromising aesthetics or functionality. The use of high-quality materials, including corrosion-resistant coatings and precision-machined parts, ensures that the lock operates with the same level of precision and durability as any other Mercedes-Benz component.

For technicians and enthusiasts alike, the 4477408300 lock represents a blend of cutting-edge technology and Mercedes-Benz engineering excellence. It is compatible with a range of models within the **C-Class, E-Class, S-Class, and GL-Class** families, depending on the specific trim and year of manufacture, making it a versatile and essential replacement part for those seeking to restore or upgrade their vehicle s security and convenience features. Whether replacing a faulty lock due to wear and tear or upgrading to enhance the driving experience, this lock module delivers the performance and sophistication that Mercedes-Benz drivers expect. Its compatibility with the latest diagnostic tools and programming protocols ensures that installation and integration are straightforward, allowing for a hassle-free experience even for those with limited mechanical expertise. In essence, the **Mercedes-Benz 4477408300 Lock** is not merely a functional component but a testament to the brand s commitment to innovation, quality, and driver-centric design.

### Pros and Cons of Buying a Mercedes-Benz 4477408300 Lock

The **Mercedes-Benz 4477408300** is a **remote key fob** (specifically, a **Keyfob 4477408300**, also known as a **W204/W205/W206 Keyfob** for certain model years). Below is a detailed breakdown of its advantages and disadvantages.

---

### **Pros**

1. **Compatibility with Multiple Mercedes Models**

The **4477408300** key fob is designed for **W204 (E-Class), W205 (C-Class), and W206 (GLK-Class)** vehicles from **2007 to 2014**. If you own one of these models, this fob will work seamlessly, providing **remote start, door unlocking, panic alarm, and keyless entry**.

2. **Modern Security Features**

Unlike older key fobs, this model likely includes **rolling code technology**, which prevents **relay attacks** (a common method used by thieves to clone key fob signals). This makes it more secure than basic push-button fobs.

3. **Durability and Build Quality**

Mercedes-Benz key fobs are generally well-built, with **metal or reinforced plastic casings** that resist wear and tear. The **4477408300** is no exception, offering a **long lifespan** if maintained properly.

4. **Easy Installation (If Needed)**

While most Mercedes key fobs are **plug-and-play** (no reprogramming required when replacing a lost or broken fob), some users may need to **reprogram the fob** if the original was lost. Mercedes dealerships or locksmiths can handle this process efficiently.

5. **Resale Value**

Since Mercedes key fobs are **brand-specific**, a working **4477408300** can be **sold or traded in** for a decent price, especially if it s in good condition.

6. **Compatibility with Aftermarket Accessories**

Some aftermarket **remote start systems** and **smart home integrations** (like **HomeLink or Apple CarPlay**) may work with this fob, depending on the vehicle s software version.

7. **No Need for a Spare Key**

Unlike traditional keys, a **key fob allows keyless entry**, meaning you don t need to carry a physical key. This is convenient for daily use.

---

### **Cons**

1. **Limited Compatibility Outside Mercedes Models**

This fob **will not work** on non-Mercedes vehicles, and even within Mercedes, it s **only for specific model years (2007 2014)**. Buying it for the wrong car is a waste of money.

2. **Potential for Battery Issues**

Like all key fobs, the **4477408300** relies on a **CR2032 battery**, which degrades over time. If the battery dies, the fob may **stop working entirely** until replaced. Some users report **false unlock signals** if the battery is weak.

3. **Risk of Theft or Loss**

Since key fobs can be **cloned or intercepted** (especially if using an older rolling code system), losing one can be dangerous. If stolen, a thief could **unlock and start your car** without a key.

4. **Possible Need for Reprogramming**

If the original fob was lost and you re replacing it, some Mercedes models may require **reprogramming** to accept a new fob. While not always necessary, this adds an extra step if something goes wrong.

5. **Cost Compared to Generic Fobs**

A **Mercedes-Benz original key fob** is more expensive than a **generic aftermarket fob** (which may not have the same features or durability). If you re on a tight budget, a non-OEM fob might be a cheaper alternative, though with trade-offs in reliability.

6. **Software Limitations**

Some newer Mercedes models (post-2014) use **different fob technologies** (like **Keyless Go or Keyless Drive**), which may not be compatible with this older model. If you plan to upgrade your car, this fob may become obsolete.

7. **Potential for Counterfeit Fobs**

If purchasing from an **unverified seller**, there s a risk of getting a **fake or low-quality replica** that doesn t work properly. Always buy from **authorized dealers or trusted sources**.

---

### **Conclusion**

The **Mercedes-Benz 4477408300 key fob** is a **reliable, high-quality accessory** for **W204, W205, and W206 models from 2007 2014**, offering **convenience, security, and durability**. It s a **smart investment** if you need a **replacement for a lost or damaged fob** or want an extra spare.

However, it s **not a universal solution** it **only works on specific Mercedes models**, and its **battery-dependent nature** means regular maintenance is required. If you re concerned about **theft risks**, consider **additional security measures** like a **steering wheel lock** or **alarm system**.

---

### **Recommendation**

- You own a **W204 (E-Class), W205 (C-Class), or W206 (GLK-Class) from 2007 2014**.

- You need a **replacement fob** for security or convenience.

- You want an **authentic Mercedes part** with long-term reliability.

- You have a **different Mercedes model** (pre-2007 or post-2014).

- You re looking for a **cheaper alternative** and can tolerate slightly lower build quality.

- You re unsure about **proper installation or reprogramming** and don t want to risk complications.

- **Authorized Mercedes dealership** (for warranty and authenticity).

- **Reputable online retailers** (eBay, Amazon, or specialized auto parts stores with good reviews).

- **Avoid unknown sellers** to prevent counterfeit fobs.

If you re unsure about compatibility, **check your vehicle s VIN or consult a Mercedes specialist** before purchasing.

Details:

Handles locks, passenger side door. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Electrical parts are not returnable.

part #: 4477408300 prices

• $88.99-$332.49

specifications carlockiio:

• for makes: Mercedes
• for years: 2016-2023
• mpn: 4477408300
• model: Metris
• part type: Lock
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Mercedes-benz
• year: 2016 2017 2018 2019 2020 2021 2022 2023
• parts included: Only Part Reference 13 On The Diagram Is Included
• replaces part number: 4477400635, 4477407400

general carlockiio:

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

offer carlockiio:

• availability: In Stock
• quantity: 4
• sold: 0
• options: Ship-to-home
• started: February 4, 2026

returns carlockiio:

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

seller carlockiio:

• city: Warwick, Rhode Island
• rating: 99.6%
• # reviews: 4385

payments carlockiio:

• other
• credit card: Discover
• wallet: Paypal

shipping carlockiio:

• service: FedEx Ground / FedEx Home Delivery, FedEx 2Day, FedEx Standard Overnight
• type: Fixed
• carrier: FedEx
• class: Standard, Expedited, One-day
• transit: 2-6 Days
• cost: $0.00

Mercedes 4477408300 Is Similar To:

• 00076601289051 Mercedes Oem Lock Knob (39.2% similar) This part fits vehicles made in the following years 2010 , 2011 , 2012 , 2013 , 2014 , 2015...(July 7th, 2018)
• 0008202303 Mercedes Oem Fuel Filler Door Lock Actuator (33.3% similar) The original package must be included and intact. Therefore some of the boxes or original packaging may be slightly scuffed, dirty, show other signs having been handled stored. 5l AWD BASE2014MERCEDES-BENZ ML350 as long the part shows no signs of having been installed slide marks on electrical tabs...(March 12th, 2018)
• 0019930520 Mercedes-benz Mercedes Oem Front (40.8% similar) This part fits vehicles made in the following years 2010 , 2011 , 2012 , 2013...(November 18th, 2017)
• 0085 Mercedes Benz C230 C240 C320 Trunk Lid Latch Lock Actuator W Cable (35.1% similar) All are items are marked before shipping...(April 4th, 2016)
• 0997200135 Mercedes Coupe Left Door Latch Lock Actuator Driver Oem (34.9% similar) In some cases the images of part shown may be vehicle from which was pulled, or a generic image representing typical stock, rather than unique item being sold. For engines, transmissions, differentials, suspensions etc...(August 9th, 2018)
• 0997201235 Mercedes Oem Lock Kit (39.1% similar) This part fits vehicles made in the following years 2015 , 2016 , 2017...(September 1st, 2018)
• 0997202300 Mercedes-benz Mercedes Oem 14-15 (44.7% similar) This part fits vehicles made in the following years 2014 , 2015 , 2016 , 2017...(June 13th, 2017)
• 0997203200 Mercedes Benz W222 Door Lock (42.4% similar) Buyer pays the return shipping. Mercedes benz W222 door lock, oem...(December 28th, 2016)
• 0997300935 Mercedes-benz Mercedes Oem 2016 (45.1% similar) ...(September 24th, 2017)
• Door Oem 0997304500 Lock Motor Mercedes-benz-mb (43% similar) All of our genuine mercedes benz and sprinter maintenance, repair, body and accessory parts provide the same quality, fit and performance that goes into the engineering of mercedes benz and sprinter vehicles. All genuine mercedes benz and sprinter parts are backed by mercedes benz and sprinter's ...(December 6th, 2014)
• 0997304600 Mercedes-benz Mercedes Oem 12-15 (44.7% similar) ...(October 22nd, 2017)