MERCEDES A17700 Engine Piston Connecting Rod Benz W205 M177 52K

( Manufacturer Part Number: A17700 ), ( Type: Engine Piston Connecting Rod Assembly ), ( Vintage Part: No ), ( Country Of Origin: Germany )

Review MERCEDES benz Engine Piston Connecting Rod Assembly Oem 52k fits C63 AMG

The **Mercedes-Benz A17700 W205 C63 AMG M177 Engine Piston and Connecting Rod Assembly** represents the pinnacle of high-performance automotive engineering, meticulously crafted to deliver unparalleled power, precision, and durability within the legendary W205 C63 AMG platform. This critical component set is the beating heart of the M177 engine a 6.2-liter naturally aspirated V8 powerplant renowned for its raw, linear power delivery and exhilarating performance. The **A17700 piston** is forged from high-grade aluminum alloy, featuring a sophisticated **truncated dome design** optimized for efficient combustion and reduced reciprocating mass, ensuring minimal friction and maximum energy transfer. Its **honeycomb reinforcement** enhances structural integrity under extreme loads, while the **precision-machined crown** promotes optimal fuel-air mixture ignition, contributing to the engine s signature smooth yet aggressive throttle response. The **connecting rod**, forged from high-strength steel, embodies the same relentless engineering philosophy, with a **H-section profile** that balances stiffness and weight, minimizing bending and torsional stress while maintaining rigidity under the immense forces generated by the AMG s high-revving V8. The **big-end bearing journal** is meticulously polished to ensure smooth articulation with the crankshaft, while the **small-end pin** is press-fitted into the piston with laser precision, guaranteeing zero play and maximum energy transfer. Together, this piston and connecting rod assembly exemplifies Mercedes-AMG s commitment to pushing the boundaries of automotive performance, delivering a blend of raw power, refined efficiency, and enduring reliability that defines the C63 AMG s legendary driving experience. Whether in a track-focused AMG version or a street-legal high-performance application, these components are the unsung heroes that translate raw horsepower into exhilarating acceleration and dynamic handling, embodying the essence of Mercedes-Benz s engineering excellence.

### **Pros and Cons of Buying a Mercedes-Benz A17700 (W205 C63 AMG with M177 Engine and Piston/Connecting Rod Issues)**

#### **Pros**

1. **Performance and Power**

The W205 C63 AMG (especially with the M177 engine) is a high-performance sedan known for its strong acceleration and top-speed capabilities. The 4.7-liter V8 engine produces around **503 horsepower** and **516 lb-ft of torque**, making it a capable machine for spirited driving.

2. **Luxury and Comfort**

Mercedes-Benz is renowned for its premium interior, offering high-quality materials, ergonomic seating, and advanced infotainment systems. The W205, despite being an older model, still delivers a refined driving experience with excellent sound insulation and ride comfort.

3. **Reliability of the M177 Engine (When Well-Maintained)**

The M177 engine is a robust V8 that, when properly maintained, can last well beyond 100,000 miles. Many owners report that with regular oil changes and attention to minor wear issues, these engines can remain reliable for years.

4. **Strong Aftermarket Support**

The W205 has a dedicated fanbase, and parts (including aftermarket upgrades) are widely available. Tuning options, such as cold air intakes, exhaust systems, and ECU remaps, can enhance performance further.

5. **Classic AMG Styling**

The W205 C63 AMG retains a timeless, aggressive AMG design that remains desirable among enthusiasts. The front splitter, rear diffuser, and aggressive grille give it a sporty yet luxurious appearance.

6. **Potential for Restoration or Modification**

If the car is in need of mechanical work (such as piston or connecting rod issues), it could be a project for someone with mechanical skills. Restoring or modifying a W205 can be a rewarding experience for car enthusiasts.

---

#### **Cons**

1. **Piston and Connecting Rod Wear (Common Issue in M177 Engines)**

The M177 engine is notorious for **piston and connecting rod wear**, particularly in high-mileage examples. This can lead to **knocking, oil consumption, and potential catastrophic engine failure** if not addressed. Many owners report excessive wear even before 100,000 miles, especially if the engine was not properly maintained.

2. **High Maintenance Costs**

Mercedes-Benz parts and labor are expensive, and the W205 is no exception. Major repairs, such as engine rebuilds or transmission work, can cost **thousands of dollars**. The M177 s susceptibility to wear means that budgeting for potential engine issues is crucial.

3. **Transmission Reliability Concerns**

The **7G-Tronic automatic transmission** in the W205 has a reputation for being finicky. Some owners experience **jerking, delayed shifts, or complete failure**, especially in high-mileage examples. A rebuild or replacement may be necessary.

4. **Fuel Economy and Running Costs**

The V8 engine is thirsty, consuming around **14-16 MPG in the city and 20-22 MPG on the highway**. High fuel costs, along with expensive maintenance, make ownership less economical than modern turbocharged alternatives.

5. **Depreciation and Market Value**

The W205 has seen significant depreciation over the years. While it remains a desirable collector s item for some, its resale value is not as strong as newer Mercedes models. If you plan to sell later, the return on investment may not be high.

6. **Electrical and Infotainment Issues**

Older Mercedes models, including the W205, can suffer from **electrical gremlins**, such as faulty sensors, infotainment glitches, or power window malfunctions. These issues can be frustrating and costly to repair.

7. **Weight and Handling Limitations**

While the W205 is a capable sports sedan, its weight (especially with a V8) makes it less nimble than lighter competitors. The suspension is comfortable but not as sharp as modern performance cars.

---

### **Ending Conclusion**

The **Mercedes-Benz W205 C63 AMG with an M177 engine** is a **high-performance, luxury sedan** that offers **strong driving dynamics and a timeless AMG aesthetic**. However, its **major drawback is the piston and connecting rod wear issues**, which can lead to **expensive repairs and potential engine failure** if not addressed early.

If you are **mechanically inclined, willing to invest in maintenance, and enjoy classic AMG driving**, this car can be a fantastic project or a fun daily driver. However, if you prioritize **reliability, low maintenance costs, and modern technology**, a newer Mercedes or a different high-performance vehicle may be a better choice.

### **Recommendation**

- You have **mechanical experience** and are prepared for **potential engine repairs**.

- You **enjoy classic AMG styling and driving dynamics** and are willing to **budget for maintenance**.

- You find a **well-documented example** with **proven piston/connecting rod health** (preferably with **replacement parts or a rebuild history**).

- You plan to **modify or restore** the car as a passion project.

- You **cannot afford unexpected engine or transmission repairs**.

- You **prioritize reliability and low running costs** over performance and luxury.

- You are **not comfortable with older Mercedes electrical or infotainment quirks**.

- You are looking for a **modern, fuel-efficient, and low-maintenance** alternative.

**Final Verdict:** The W205 C63 AMG is a **fantastic car for the right buyer** one who appreciates its heritage, performance, and is prepared for its quirks. However, **buyers should approach it with caution**, thoroughly inspecting the engine and transmission before purchase. If you can secure a **well-maintained example with a clean service history**, it can be an excellent addition to a collection. Otherwise, consider newer AMG models or alternative high-performance sedans for a more reliable experience.

Details:

Item will come as pictured. MERCEDES W205 C63 AMG M177 ENGINE PISTON CONNECTING ROD ASSEMBLY OEM 52K. CAME OFF A 2017 C63 AMG 52K miles.

part #: a17700 prices

• $150.00-$738.87

specifications pistonringro:

• for models: C63, Amg
• for makes: Mercedes
• mpn: A17700
• type: Engine Piston Connecting Rod Assembly
• vintage part: No
• country of origin: Germany

payments pistonringro:

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

returns pistonringro:

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

offer pistonringro:

• sold: 0
• quantity: 5
• availability: In Stock
• started: April 15, 2026
• options: Ship-to-home

shipping pistonringro:

• type: Fixed
• service: UPS Ground
• cost: $15.00
• transit: 3-8 Days
• class: Standard
• carrier: UPS

seller pistonringro:

• city: Elk Grove, California
• # reviews: 422
• rating: 100.0%

general pistonringro:

• Car Truck Parts Accessories > Engines Engine Parts > Pistons Rings
• condition: Used

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