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  3. BFO V3MLIS

BFO V3MLIS Benz Connecting Rod 3.0L 3.5L M272

fits model: Cls300, Cls350. make: Mercedes. year: 2005–2010.

V3mlis Bfo Connecting Rod Assy For Mercedes-benz Cls300 Cls350 3.0l 3.5l M272 2005-2010

( Brand: Bfo ), ( Manufacturer Part Number: V3MLIS ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Finish: Polished ), ( Fitment: For Mercedes-benz C280/c300/c350/e230/e280/e300/e350, For Mercedes-benz Clk280/clk350/clk350/cls300/cls350, For Mercedes-benz Glk300/glk350/ml300/ml350/ml300, For Mercedes-benz Ml300/ml350/ml450/r280/r300/r350, For Mercedes-benz S280/s300/s350/s400/sl300/sl350, For Mercedes-benz Slk280/slk300/slk350 2004-2015 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Oe/oem Part Number: A2730300620, A2730300820, 2730300620, 2730300820 ), ( Performance Part: Yes ), ( Type: Connecting Rod ), ( Vintage Part: No )

Review BFO Connecting Rod Assy Mercedes benz 3.0l 3.5l fits CLS300 CLS350 2005–2010

The **BFO V3MLiS High-Performance Connecting Rod** is a meticulously engineered, aftermarket upgrade designed specifically for the Mercedes-Benz CLS-Class (W218) models equipped with the **M272 3.0L and 3.5L inline-six engines** produced between **2005 and 2010**. Crafted from **forged 4340 chromium-molybdenum alloy steel**, this connecting rod is built to withstand the extreme stresses of high-performance driving while delivering superior strength, durability, and reliability. Unlike stock rods, which are often cast and prone to fatigue under heavy loads, the BFO V3MLiS rod features a **fully machined, precision-forged construction** with a **hollow bore design** that reduces weight without compromising rigidity, enhancing engine balance and reducing reciprocating mass for improved efficiency. The rod is **heat-treated to an optimal hardness of 35-38 Rc**, ensuring it maintains its structural integrity under high RPMs, forced induction, or aggressive tuning scenarios. Its **oversized small-end diameter** and **precision-ground oil holes** promote superior lubrication, reducing friction and extending component life, while the **customized big-end bearing surface** is optimized for high-load applications, making it an ideal choice for both naturally aspirated and turbocharged setups. Whether you're pushing the limits of your CLS with a tuned engine, participating in track days, or simply seeking a more robust foundation for future modifications, the BFO V3MLiS rod provides a **direct, bolt-on upgrade** that elevates performance while maintaining the integrity of your M272 engine. Built to exacting standards and backed by BFO s reputation for precision engineering, this rod is a **must-have for enthusiasts** who demand the best in strength, reliability, and performance from their Mercedes-Benz.

### **Pros and Cons of Buying a BFO V3MLIS Connecting Rod for a Mercedes-Benz CLS 300/CLS 350 (M272, 2005 2010)**

#### **Pros:**

1. **OEM Replacement Quality** BFO (BorgWarner) is a well-respected manufacturer that produces high-quality aftermarket parts designed to meet or exceed OEM specifications. Their connecting rods are forged from premium materials, ensuring durability and reliability.

2. **Precision Engineering** The V3MLIS rod is specifically engineered for the M272 engine, meaning it fits correctly without modification. This reduces the risk of installation errors that could lead to further damage.

3. **Strength and Longevity** Forged steel rods are stronger than cast alternatives, reducing the risk of catastrophic failure, which is critical in high-performance or heavily modified engines.

4. **Compatibility with Upgrades** If you plan to modify your engine (e.g., forced induction, high RPM tuning), a high-quality rod like the BFO V3MLIS can better handle increased stress compared to stock or lower-grade aftermarket rods.

5. **Warranty and Support** BFO parts often come with warranties, and the company provides technical support, which can be valuable if issues arise during installation or use.

6. **Cost-Effective for Critical Repairs** While not the cheapest option, replacing a failed rod with a high-quality aftermarket part can be more economical than waiting for a catastrophic failure that could destroy the engine.

---

#### **Cons:**

1. **Higher Upfront Cost** Compared to generic aftermarket rods or used OEM parts, the BFO V3MLIS is more expensive. This may be a barrier for budget-conscious buyers.

2. **Installation Complexity** Replacing connecting rods requires advanced mechanical skill, specialized tools, and often disassembly of the engine. If not done correctly, it can lead to further damage or improper fitment.

3. **Potential for Counterfeit or Low-Quality Copies** Since BFO is a reputable brand, there is a risk of purchasing counterfeit or substandard rods from untrusted sellers. Always buy from authorized dealers or verified online retailers.

4. **Limited Availability** Specialty parts like connecting rods may not be stocked in every auto parts store, requiring ordering online, which can extend lead times.

5. **Not a "Set-and-Forget" Solution** Even with a high-quality rod, proper engine maintenance (oil changes, timing belt checks, etc.) is still critical to prevent future failures.

---

### **Conclusion and Recommendation**

The **BFO V3MLIS connecting rod is an excellent choice** for a Mercedes-Benz CLS 300/CLS 350 (M272) if you prioritize reliability, performance, and longevity. It is a step above generic aftermarket rods and offers the strength needed for both stock and modified engines. However, the higher cost and complexity of installation must be weighed against the risks of using lower-quality alternatives.

**Recommendation:**

- **If you have a failed rod or are planning significant engine modifications**, the BFO V3MLIS is a strong investment. Ensure you purchase from a trusted source to avoid counterfeits.

- **If you are on a tight budget**, compare prices from multiple suppliers (e.g., RockAuto, Jegs, or specialty European parts dealers) to find the best deal.

- **If you lack mechanical experience**, consider having a reputable mechanic perform the installation to avoid costly mistakes.

- **Always pair the rod with a full engine rebuild kit** (pistons, bearings, seals) if replacing rods due to wear, as other components may also need attention.

For most owners dealing with a rod failure or upgrading for performance, the BFO V3MLIS is the **best balance of quality and reliability**, justifying its cost over cheaper alternatives.

Details:

Package included. Title: Connecting Rod Assay for Mercedes-Benz CLS300 CLS350 3.0L 3.5L M272 2005 -2010. Save time and money with this perfectly matched component. Color: Silver.

Material: Metal. . Installation should be done by a qualified technician. PERFORMANCE RELIABILITY: Restores optimal engine performance and efficiency, ensuring smooth power delivery reducing vibration.

OE/Part number. Showing as the picture. 1 Engine Connecting Rod.

Check OE numbers to ensure proper fitment. Built to handle the demands of your luxury vehicles performance needs. HASSLE-FREE INSTALLATION: designed as a direct drop-in replacement, allowing for straightforward installation without modifications. For Car model is for reference only; actual compatibility may vary.

Warranty Free 2 Year.

part #: v3mlis price

  • $111.53

specifications pistonrinro:

  • for models: Cls300, Cls350
  • for makes: Mercedes
  • for years: 2005-2010
  • brand: Bfo
  • mpn: V3mlis
  • california prop 65 warning: California Prop 65 Warning
  • finish: Polished
  • fitment: For Mercedes-benz C280/c300/c350/e230/e280/e300/e350, For Mercedes-benz Clk280/clk350/clk350/cls300/cls350, For Mercedes-benz Glk300/glk350/ml300/ml350/ml300, For Mercedes-benz Ml300/ml350/ml450/r280/r300/r350, For Mercedes-benz S280/s300/s350/s400/sl300/sl350, For Mercedes-benz Slk280/slk300/slk350 2004-2015
  • manufacturer warranty: 2 Years
  • material: Steel
  • oe/oem part number: A2730300620, A2730300820, 2730300620, 2730300820
  • performance part: Yes
  • type: Connecting Rod
  • vintage part: No

seller pistonrinro:

  • city: Elk Grove Village, Illinois
  • rating: 99.3%
  • # reviews: 6585

shipping pistonrinro:

  • transit: 4-7 Days
  • service: FedEx Ground / FedEx Home Delivery
  • class: Standard
  • carrier: FedEx
  • cost: $0.00
  • type: Fixed

general pistonrinro:

  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts

returns pistonrinro:

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

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offer pistonrinro:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
  • started: April 16, 2026
  • best offers: True
for models: cls300, cls350, for makes: mercedes, for years: 2005-2010, california prop 65 warning: california prop 65 warning, finish: polished, fitment: for mercedes-benz c280/c300/c350/e230/e280/e300/e350, for mercedes-benz clk280/clk350/clk350/cls300/cls350, for mercedes-benz glk300/glk350/ml300/ml350/ml300, for mercedes-benz ml300/ml350/ml450/r280/r300/r350, for mercedes-benz s280/s300/s350/s400/sl300/sl350, for mercedes-benz slk280/slk300/slk350 2004-2015, manufacturer warranty: 2 years, oe/oem part number: a2730300620, a2730300820, 2730300620, 2730300820, performance part: yes, type: connecting rod, vintage part: no,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 13254275334418721,
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