MERCEDES A251-757-01-06 Palladium Fuel Door Gas Filler Flap Benz 792 Cover

( Manufacturer Part Number: A251-757-01-06 ), ( Part Type: Fuel Cover Door Filler Flap ), ( Material: Plastic ), ( Vintage Part: No ), ( Finish: Paint Code 792, 9792, C792 ), ( Country Of Origin: Germany )

Review MERCEDES benz 792 Palladium Silver Fuel Gas Filler Door Flap Cover fits R320 2007–2009

The **Mercedes-Benz A251-757-01-06 R320 (W203) Palladium Fuel Gas Filler Door Flap Cover** is a precision-engineered, high-quality replacement part designed exclusively for the **Mercedes-Benz C-Class (C203) models produced between 2007 and 2009**, specifically those equipped with the **R320 engine variant**. This component is part of the **fuel filler door assembly**, serving as the protective flap that covers the gas filler opening when not in use, ensuring a sleek, aerodynamic finish while preventing dirt, debris, and moisture from entering the fuel system. Crafted from **durable, weather-resistant materials**, this flap cover is engineered to withstand the rigors of daily driving, including exposure to UV rays, temperature fluctuations, and minor impacts, all while maintaining the vehicle s original aesthetic appeal. The **Palladium series** designation indicates that this part adheres to Mercedes-Benz s high standards for fit, finish, and functionality, offering a seamless integration with the surrounding bodywork. The **A251-757-01-06** designation ensures compatibility with the **R320 engine** (a 3.2-liter V6 model) found in these C-Class sedans, guaranteeing an exact match in terms of shape, size, and mounting points. Whether replacing a damaged or worn-out original flap or upgrading for enhanced durability, this aftermarket part is a reliable choice for maintaining the vehicle s performance and curb appeal. Its **clean, factory-like appearance** ensures that it blends seamlessly with the rest of the fuel filler door assembly, providing both form and function without compromising on quality.

### **Pros and Cons of Buying a Mercedes-Benz A-Class (W251, R320, 2007 2009, 792 Palladium Fuel Gas Filler Door Flap Cover)**

#### **Pros**

1. **Reliable Engine and Performance**

- The **R320** is a **3.2-liter V6 engine**, producing around **231 241 hp** (depending on the year), which provides a good balance of power and efficiency for its class. It is a **proven Mercedes engine**, known for durability if maintained properly.

- The **automatic transmission (7G-Tronic)** is smooth and well-suited for daily driving, though it may require occasional fluid changes.

2. **Comfortable and Spacious Interior**

- The **A-Class (W251)** is one of the most **roomy compact executive cars** of its time, offering **better rear legroom** than competitors like the BMW 1 Series or Audi A3.

- The **interior materials** (especially in the **Palladium trim**) are **high-quality**, with **soft-touch plastics, leather seats, and a well-fitted dashboard**.

- **Comfortable ride** with **adjustable suspension settings** (if equipped with **DYNAMIC SELECT**).

3. **Good Fuel Economy (For a V6)**

- While not as efficient as a diesel or smaller engine, the **R320 still achieves around 16 18 MPG (city/highway)**, which is reasonable for a **V6 sedan** of this era.

4. **Safety Features**

- Equipped with **standard stability control, ABS, and multiple airbags**.

- Some models may have **optional features like blind-spot monitoring or lane-keeping assist** (depending on trim and region).

5. **Resale Value (For a Used Mercedes)**

- Mercedes-Benz **retains value better than most luxury brands**, especially for well-maintained examples.

- The **W251 is not as common as later models**, which could make it a **good investment** if kept in good condition.

6. **Luxury Brand Prestige**

- Owning a **Mercedes-Benz** carries **status and brand recognition**, which some buyers value.

7. **Fuel Gas Filler Door Flap Cover (Unique Modification)**

- The **Palladium fuel gas filler door flap cover** suggests that the car has been **customized for LPG (liquefied petroleum gas) use**, which can **reduce fuel costs** (especially in regions where LPG is cheap).

- If properly installed, this modification **does not significantly affect performance** and can be a **cost-saving feature** for long-term ownership.

---

#### **Cons**

1. **Higher Maintenance Costs**

- **Mercedes-Benz parts and labor are expensive**, especially for a **V6 engine** with **timing chain** (which may need replacement around **100,000 150,000 miles**).

- **Regular servicing (every 10,000 15,000 miles)** is **essential** to prevent major failures.

2. **Potential Engine and Transmission Issues**

- Some **R320 engines** (especially from **2007 2009**) have reported **oil consumption problems** if not maintained properly.

- **Transmission (7G-Tronic) failures** can occur if **fluid is not changed regularly** (some owners report **slipping or rough shifting** after 100,000 miles).

- **Water pump and timing chain** failures are **known issues** in this engine family.

3. **LPG Modification Risks (Fuel Gas Filler Door Flap Cover)**

- **LPG conversions are not always reliable** and can **void the manufacturer s warranty**.

- **Leaks or improper installation** can pose a **fire hazard**.

- **Reduced performance** compared to gasoline (though the difference may be negligible in daily driving).

- **Finding LPG stations** may be **limited in some areas**.

4. **Rust and Body Issues**

- The **W251 is prone to rust**, especially in **wheel arches, sills, and undercarriage** if not stored properly.

- **Check for rust** before purchasing **corrosion can lead to structural weakness**.

5. **Electrical and Infotainment Problems**

- Some models have **issues with the radio, climate control, or power windows** due to **aging wiring or software glitches**.

- **No modern infotainment system** (unlike newer Mercedes), which can be **annoying for tech-savvy buyers**.

6. **Depreciation**

- While Mercedes **holds value better than most**, the **W251 is not as sought-after as newer models**, meaning **resale value may not be as strong** as a **C-Class or E-Class**.

7. **Higher Insurance Costs**

- As a **luxury car**, insurance premiums will be **higher than a comparable non-luxury sedan**.

---

### **Conclusion**

The **Mercedes-Benz A-Class (W251, R320, 2007 2009) with a Palladium fuel gas filler door flap cover (LPG modification)** is a **well-built, comfortable, and powerful** car that offers **good value for money** if bought **used but well-maintained**. The **V6 engine provides solid performance**, and the **interior remains one of the best in its class**.

- **Higher maintenance costs** (especially for the engine and transmission).

- **LPG modifications can be unreliable** and may limit resale value.

- **Rust and electrical issues** are common in older Mercedes.

- **Depreciation and insurance costs** are higher than average.

**Prioritize comfort, space, and luxury** over fuel efficiency,

**Have a budget for maintenance and potential repairs**,

**Are okay with an older model and not needing the latest tech**,

**Want a cost-effective fuel alternative (LPG) for long-term savings**,

**Find a car with a clean service history and no major rust issues**,

**then this could be a great purchase.**

**Want a car with lower long-term costs** (maintenance, fuel, insurance),

**Prefer a more modern infotainment system**,

**Are concerned about LPG reliability and availability**,

**Find significant rust or mechanical issues**,

**then consider alternatives like a well-maintained BMW 1 Series, Audi A4, or a newer used Mercedes (C-Class, E-Class).**

---

### **Final Recommendation**

- You **inspect it thoroughly** (check engine, transmission, rust, LPG system).

- You **budget for potential repairs** (especially timing chain, water pump, transmission fluid changes).

- You **accept the trade-offs** (higher maintenance, older tech, LPG limitations).

- You **find a seller with a full service history** and **no major red flags**.

- You **cannot afford unexpected repairs**.

- You **want a more fuel-efficient or modern vehicle**.

- The **LPG modification is poorly installed or unreliable**.

- The **car shows signs of neglect (rust, poor maintenance records)**.

- A **used BMW 135i (E87) or Audi A4 (B7)** for similar luxury with better reliability.

- A **newer used Mercedes C-Class (W205)** if you want modern tech and better long-term value.

- A **hybrid or diesel alternative** if fuel efficiency is a priority.

**Final Verdict:** **A well-maintained example with a properly installed LPG system can be a solid buy for the right buyer, but it requires due diligence and financial preparedness for potential issues.**

Details:

part #: a2517570106 prices

• $64.23-$69.00

specifications fueltanksysteme:

• for models: R320
• for makes: Mercedes
• for years: 2007-2009
• mpn: A251-757-01-06
• part type: Fuel Cover Door Filler Flap
• material: Plastic
• vintage part: No
• finish: Paint Code 792, 9792, C792
• country of origin: Germany

offer fueltanksysteme:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: June 3, 2026
• sold: 0

returns fueltanksysteme:

• policy: No Returns

general fueltanksysteme:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

shipping fueltanksysteme:

• type: Fixed
• service: Economy
• class: Economy
• transit: 3-8 Days
• cost: $0.00

seller fueltanksysteme:

• # reviews: 11270
• city: New Smyrna Beach, Florida
• rating: 99.9%

payments fueltanksysteme:

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

Mercedes A251-757-01-06 Is Similar To:

• 1078003175 Mercedes Benz Oe Vacuum Pump Central Locking System Price Lowered (28.1% similar) New and unused, genuine mercedes benz vacuum element. Mercedes a central locking system...(March 6th, 2018)
• 110-471-08-22 Mercedes Gas Tank Reinforcement (24.3% similar) Mb part number. New mercedes reinforcement along rear gas tank seam for mounting to body, used on 230SL 250SL 280SL 300SE...(October 22nd, 2018)
• 1105421204 Vdo Mercedes Sl Se Fuel Gas Tank Sending Unit (33.1% similar) All others please with zip code for shipping quote. For sale is a used fuel tank sending unit that was removed from 1971 mercedes 280 SL 113 chassis but will also work on other year and model 108CH, 114CH 113CH with same plug configuration as shown in the pictures...(September 10th, 2018)
• 111-470-06-86 Mercedes Ponton Fintail Gas (25% similar) For all pontoon gasoline tanks at bottom. Diesel owner must determine. Mercedes fuel tank filter screen plug with new crush gasket. Also fits some or all fantails, according to its current part number. Not sure if this also is suitable for diesels. Brass screen is clean and completely intact...(February 11th, 2018)
• 1144700101 Mercedes Oem Fuel Tank (26.6% similar) This tank will fit all 114 and 115 chassis vehicles. This item currently list for 1,520. The MB part number is. This item is used with a 90 day warranty. Mercedes oem fuel tank. This tank as zero rust inside...(October 10th, 2018)
• 123 584 00 39 1235840039 Mercedes Sedan Fuel Tank Door Lid Red Burgundy Factory Oem (30% similar) All electrical and electronic parts are tested guaranteed. Free shipping is for the 48 contiguous states...(September 29th, 2018)
• 1234700189 Mercedes Steel Fuel Expansion Tank Diesel Wagon (30.1% similar) It is in good overall condition and works perfectly. Not compatible with W123 coupe sedan model's. Diesel steel fuel expansion tank for W123 wagon model's I am selling an oem mercedes original tank for only. Halo ESP ol...(February 16th, 2019)
• 124-470-00-05 Genuine Mercedes Fuel Tank Gas Cap Filler (32% similar) Brand new genuine mercedes fuel tank gas cap filler R107 W108 W109 W114. Condition is new...(March 24th, 2019)
• 1294700664 Genuine Mercedes New Fuel Tank Line For (29% similar) Mercedes-benz 190E or for a quick response. Mercedes-benz 300E 600SEL S320 300CE 190E 124. Mercedes-benz 400SE 300SE SL320 600SEC S420 S600 500SL 190E 500E S320 CL600 140. Mercedes-benz E500 600SL S500 400SEL if you live outside of the USA please research and verify it fits your vehicle before ...(May 31st, 2019)
• 137 33039 001 Wd Express Fuel Line Left Fits Mercedes 884109112242 (16.1% similar) It is this experience and vendor relationships that brings to you. We dedicate ourselves to giving you the service and care that expect reminds come see us again...(June 16th, 2018)
• 164-470-03-30 Genuine Mercedes Fuel Filler Gas Cap Tank Cover Oem (37.5% similar) Genuine mercedes fuel filler gas cap tank cover oem condition: new brand: mercedes-benz mpn: warranty: lifetime manufacturer part number: fitment type: direct replacement other to ensure proper please enter vehicles year, make and model in the parts compatibility above. Read all notes and compare ...(December 17th, 2018)