MERCEDES 2790160400 Right Cylinder Head Cover 151617181920 Benz W222 S600 M277 M279

( Manufacturer Part Number: 2790160400 ), ( Type: Valve Cover ), ( Oe/oem Part Number: A2790160400 ), ( UPC: 151617181920 )

Review MERCEDES benz Right Side Cylinder Head Cover Oem fits S65 AMG 2015–2020

The **Mercedes-Benz 2790160400 cylinder head cover** is a precision-engineered component designed exclusively for the **W222 S-Class (2015 2020)** lineup, specifically tailored to the **S65 AMG and S600 models** equipped with the **M277 (4.0L V8) and M279 (6.2L V12) engines**. This high-performance part serves as both a functional and aesthetic element, sealing the combustion chambers while housing critical components such as the **cylinder head sensors, spark plugs, and valve cover gaskets**. Crafted from **high-grade aluminum alloy**, the cover is engineered to withstand extreme thermal and mechanical stresses, ensuring optimal performance under the demanding conditions of high-revving AMG and luxury S600 engines.

The design of this cylinder head cover reflects Mercedes-Benz s signature blend of **aerodynamic efficiency and engineering precision**. Its **smooth, contoured surface** not only enhances the vehicle s sleek appearance but also minimizes air resistance, contributing to the S-Class s signature low drag coefficient. The cover features **integrated ventilation ports** that regulate internal pressure, preventing oil vapor buildup and maintaining engine efficiency. For the **M277 (V8) and M279 (V12) applications**, the cover is meticulously contoured to accommodate the unique cylinder head geometry, ensuring a perfect fit without interference with adjacent components such as the **intake manifolds, exhaust headers, or cooling systems**.

Underneath its polished exterior, the **2790160400 cylinder head cover** incorporates **OEM-grade gaskets and sealing surfaces**, designed to prevent oil leaks and maintain vacuum integrity. The **right-side orientation** (as specified for left-hand drive models) ensures compatibility with the engine s firing order and valve timing systems, critical for both performance and reliability. Whether installed on a **restored factory-fresh S600** or a **highly modified AMG performance build**, this part guarantees a **factory-sealed appearance and function**, complete with the **Mercedes-Benz emblem and chrome accents** that define the brand s luxury engineering.

For enthusiasts and professionals alike, this cylinder head cover represents the pinnacle of **OEM-quality restoration and upgrade potential**. Its **direct-fit compatibility** eliminates the need for modifications, making it an ideal choice for **classic restorations, performance tuning projects, or routine maintenance**. Whether paired with a **new gasket kit, upgraded valve covers, or a full engine rebuild**, the **2790160400** ensures that the engine bay retains its **showroom-worthy finish** while delivering the durability expected from Mercedes-Benz s most exclusive models. Built to exacting specifications, this part is a testament to the **precision craftsmanship** that defines the S-Class, ensuring that every detail from the **laser-welded seams to the polished aluminum finish** contributes to both **performance and prestige**.

### **Pros and Cons of Buying a Mercedes-Benz W222 S65 AMG (2015 2020) with the M277/M279 Cylinder Head Cover (Part #2790160400)**

#### **Overview**

The **Mercedes-Benz W222 S65 AMG (2015 2020)** is a high-performance luxury sedan powered by the **M277 (pre-2018) and M279 (2018 2020) V8 engines**. The **cylinder head cover (part #2790160400)** is a critical component, and its condition can significantly impact engine reliability, performance, and long-term value. Below is a detailed analysis of the pros and cons of purchasing one of these models, followed by a conclusion and recommendation.

---

### **Pros of Buying a W222 S65 AMG (2015 2020)**

1. **Exceptional Performance**

- The **S65 AMG** delivers **513 612 hp (M277/M279)** and **0 60 mph in 3.8 4.2 seconds**, making it one of the fastest sedans in its class.

- The **M279 (2018 )** features **direct injection, variable valve timing, and a revised exhaust system**, improving efficiency and power delivery.

- **AMG Drive Pro** (adaptive damping) and **4MATIC all-wheel drive** enhance handling and traction.

2. **Luxury and Comfort**

- The W222 is a **luxury sedan** with premium materials, advanced infotainment (MBUX in later models), and high-end sound systems.

- **Comfortable ride** with adaptive suspension, making it suitable for both city and highway driving.

- **Spacious cabin** with high-quality seating and advanced driver aids (e.g., blind-spot monitoring, lane-keeping assist).

3. **Strong Resale Value**

- Mercedes-Benz luxury sedans hold their value well, especially AMG models.

- The **S65 AMG** remains a desirable collectible, particularly with low mileage and well-maintained examples.

4. **Reliability Improvements (M279 Over M277)**

- **Improved cylinder head gasket sealing** (reducing oil leaks).

- **Better fuel injection system** (reducing carbon buildup issues).

- **Stronger valve springs** (reducing valve float at high RPM).

- **Turbocharger reliability** improved in the M279, though **oil consumption** remains a known issue in some cases.

5. **Aftermarket and Modification Potential**

- The **S65 AMG** has a **strong aftermarket**, with performance upgrades (e.g., cold air intakes, exhaust systems, ECU tuning) available.

- **AMG Performance Center** offers factory-backed upgrades (e.g., **S65 Black Series** with **612 hp**).

- **Track-focused modifications** (e.g., **AMG Sport Package, limited-slip differential**) enhance drivability.

6. **Advanced Technology**

- **MBUX infotainment (2018 )** with **voice control, augmented reality navigation, and over-the-air updates**.

- **Advanced safety features** (e.g., **active brake assist, pre-safe restraints, 360-degree camera**).

- **Wireless Apple CarPlay/Android Auto (2018 )** improves connectivity.

7. **Exclusivity and Prestige**

- The **S65 AMG** is a **high-status vehicle**, appealing to enthusiasts who value both luxury and performance.

- **Limited production numbers** (especially early models) make it a sought-after collector s item.

---

### **Cons of Buying a W222 S65 AMG (2015 2020)**

1. **High Cost of Ownership**

- **Fuel economy is poor** ( 12 14 MPG combined), leading to **high running costs**.

- **Maintenance and repairs can be expensive**, especially for **AMG-specific components** (e.g., **turbochargers, suspension, exhaust systems**).

- **Labor costs** at Mercedes dealerships are among the highest in the industry.

2. **Known Reliability Issues (Especially M277)**

- **Oil consumption** Some **M277 engines** (pre-2018) suffer from **excessive oil burning**, requiring frequent top-ups or even **valve stem seals replacement**.

- **Carbon buildup** Direct injection engines are prone to **carbon deposits**, leading to **rough idle, misfires, or reduced performance**.

- **Turbocharger failures** Some owners report **turbo wastegate leaks or compressor failures**, requiring **$3,000 $5,000 repairs**.

- **Water pump and timing chain issues** The **M277/M279** uses a **non-adjustable timing chain**, which can stretch over time, leading to **timing issues and engine damage** if neglected.

- **Cylinder head cover leaks** The **part #2790160400** (and earlier versions) has been known to **leak oil or coolant**, especially if the **gasket is worn or improperly installed**.

3. **Depreciation (Despite Strong Resale)**

- While the **S65 AMG holds value well**, it still **depreciates significantly** over time, especially compared to **hybrid or electric luxury sedans**.

- **Insurance costs** are **high** due to the vehicle s value and performance capabilities.

4. **Comfort vs. Performance Trade-offs**

- The **S65 AMG is not as comfortable as a standard S-Class** **stiff suspension tuning** prioritizes performance over ride comfort.

- **Wind and road noise** can be noticeable at high speeds, detracting from the luxury experience.

5. **Complexity and Maintenance Requirements**

- The **V8 engine, turbochargers, and advanced drivetrain** require **specialized knowledge** for maintenance.

- **AMG-specific diagnostics** may require **dealership-level tools**, increasing repair costs.

- **Regular maintenance (e.g., valve stem seals, carbon cleaning, turbo servicing) is essential** to prevent major failures.

6. **Cylinder Head Cover (Part #2790160400) Specific Concerns**

- **Oil leaks** The **gasket or cover itself** can develop **oil leaks**, especially if the **engine bay is hot and the cover expands**.

- **Replacement difficulty** Some owners report **difficulty removing the old cover** due to **seized bolts or gasket residue**.

- **Cost of replacement** A **new cylinder head cover (OEM) costs $1,000 $1,500**, plus labor ( $500 $800), making it an **unnecessary expense if the original is in good condition**.

- **Aftermarket alternatives** Some owners opt for **high-quality aftermarket covers** (e.g., **Aeromotive, Spectre**) to reduce weight and improve airflow, but **installation requires precision**.

7. **Environmental and Future-Proofing Concerns**

- **High emissions** The **V8 engine does not meet the latest emissions standards**, which could lead to **driving restrictions in some cities**.

- **Electric and hybrid alternatives** Future luxury sedans will likely shift toward **hybrid or fully electric powertrains**, making the **S65 AMG less relevant long-term**.

---

### **Conclusion**

The **Mercedes-Benz W222 S65 AMG (2015 2020)** is a **fantastic vehicle for enthusiasts who prioritize performance, luxury, and driving dynamics**. However, **potential buyers must carefully consider the trade-offs**, particularly around **reliability, maintenance costs, and long-term ownership expenses**.

- **Enthusiasts who enjoy high-performance driving** and are willing to **invest in maintenance**.

- **Collectors who appreciate the S65 AMG s exclusivity** and plan to **keep it for the long term**.

- **Owners who can afford high insurance, fuel, and repair costs**.

- **Those who prefer a traditional V8 over hybrid/electric alternatives**.

- **Budget-conscious buyers** who cannot afford **high running costs**.

- **Those who prioritize fuel efficiency and low emissions**.

- **Owners who dislike frequent maintenance** (e.g., **oil changes, turbo servicing, carbon cleaning**).

- **People who want a "set-and-forget" luxury sedan** without performance compromises.

---

### **Recommendation**

1. **Prioritize the M279 (2018

Details:

Item may show light scuffs, scratches or other imperfections as a result of this being used part. Shipping cost or carrier may change, based on final destination. Original Mercedes Part. Large items include: hood, door shell, fender, engine, transmission, trunk hatch, windshield, bumper, reinforcement clip, sub frame, roof, quarter apron, gas tank, etc.

Item is in good condition. All of the parts are tested either before or after removal from vehicle. Please, do not purchase parts just to check and diagnose your vehicles problem.

part #: 2790160400 prices

• $83.00-$535.00

specifications cylinderheapar:

• for models: S65, Amg
• for makes: Mercedes
• for years: 2015-2020
• mpn: 2790160400
• type: Valve Cover
• oe/oem part number: A2790160400
• upc: 151617181920

offer cylinderheapar:

• quantity: 1
• availability: In Stock
• sold: 0
• started: May 12, 2026
• options: Ship-to-home
• best offers: True

returns cylinderheapar:

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

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

shipping cylinderheapar:

• transit: 2-6 Days
• class: Standard
• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• cost: $25.00

payments cylinderheapar:

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

seller cylinderheapar:

• city: Pleasant Grove, California
• # reviews: 59012
• rating: 99.8%

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