MERCEDES A2700201 Engine Crankshaft Bearing Benz M270 2.0L

( Manufacturer Part Number: A2700201 ), ( Part Type: Bearing Engine Crankshaft ), ( Bundle Listing: No ), ( Fitment Type: Direct Replacement )

Review MERCEDES benz 2.0l Engine Crankshaft Main Bearing Oem fits CLA250 FWD 2014–2021

The **Mercedes-Benz A2700201 (2014-2021 CLA-Class M270 2.0L FWD Engine Crankshaft Bearing)** is a precision-engineered, high-performance replacement part designed to restore optimal functionality and longevity to the M270 inline-four engine found in the CLA-Class models produced between 2014 and 2021. This crankshaft bearing is a critical component of the engine s main bearing assembly, serving as the foundational support for the crankshaft s rotation while minimizing friction, heat, and wear. Crafted from advanced, high-grade materials likely featuring a robust steel backing with a specialized bearing surface this bearing is engineered to withstand the demanding stresses of modern automotive engines, including the torque and RPM demands of the M270 s turbocharged 2.0-liter inline-four cylinder architecture. The bearing s design incorporates precise tolerances and a carefully balanced oil film retention system to ensure smooth operation, even under high-load conditions, which is essential for maintaining the engine s efficiency and preventing catastrophic failure. Whether replacing a worn-out original bearing or upgrading for enhanced durability, this aftermarket part is built to meet or exceed OEM specifications, offering a reliable alternative to costly dealer-supplied components. Its compatibility with the front-wheel-drive CLA-Class models ensures a seamless fit, allowing for a straightforward installation process that restores the engine s performance to factory standards while extending its service life. Ideal for mechanics and enthusiasts seeking a cost-effective yet high-quality solution, this crankshaft bearing exemplifies Mercedes-Benz s commitment to engineering excellence, delivering both performance and reliability for the M270 s dynamic driving experience.

### Pros and Cons of Buying a Mercedes-Benz A-Class (C170, 2014 2021) with a 2.0L M270 Engine (FWD) and Crankshaft Bearing Issue

#### **Pros**

1. **Reliability of the M270 Engine**

The 2.0L inline-four M270 engine (used in the CLA250 and A250) is generally well-regarded for its smooth operation, decent power output (204 211 hp depending on the model year), and fuel efficiency (around 22 28 mpg combined). It is a turbocharged engine with direct injection, which provides a good balance of performance and efficiency for its class.

2. **Modern Technology and Comfort**

- **Comfort-oriented driving dynamics** with adaptive dampers, available air suspension, and a refined cabin.

- **Infotainment system** (MBUX in later models, earlier ones have COMAND) with touchscreen, Bluetooth, and connectivity options.

- **Safety features** such as pre-collision braking, lane-keeping assist, and blind-spot monitoring (available in higher trims).

- **Luxury amenities** like leather upholstery, climate control, and ambient lighting, depending on the trim.

3. **Resale Value**

Mercedes-Benz maintains relatively strong resale value compared to many competitors, especially for well-maintained models. The CLA250 and A250 are popular choices, which can help if you decide to sell later.

4. **Fuel Efficiency**

The 2.0L turbo engine offers better fuel economy than larger V6 or V8 engines found in other Mercedes models, making it cost-effective for daily driving.

5. **Availability of Parts and Service**

As a widely produced model, parts for the M270 engine and A-Class/CLA are relatively easy to find, though pricing can vary depending on the market.

6. **Potential for Modifications**

The M270 engine has a dedicated aftermarket, allowing for upgrades such as exhaust systems, intake modifications, or tuning for improved performance (though this should be done carefully to avoid voiding warranties or causing damage).

---

#### **Cons**

1. **Crankshaft Bearing Issue (Major Concern)**

The most critical drawback of this engine is the **crankshaft bearing wear problem**, which has been widely reported in the M270 engine (especially in the 2014 2018 models). Symptoms include:

- **Rattling or knocking noises** from the engine, particularly under load or when accelerating.

- **Oil consumption** (burning oil, low oil levels despite regular top-ups).

- **Engine misfires or rough idling** due to internal damage.

- **Potential catastrophic failure** if the bearings fail completely, leading to expensive engine replacement (often $5,000 $8,000 ).

The issue is caused by **insufficient oil flow** to the crankshaft bearings, leading to premature wear. Mercedes has acknowledged the problem and offered **extended warranties or repairs** in some cases, but coverage varies by market and model year.

- **Service history is critical.** If the vehicle has been regularly serviced with **high-quality oil changes** (using Mercedes-approved synthetic oil, such as **Mercedes-Benz Type 229.51 or equivalent**) and the oil filter changed every **5,000 7,500 miles**, the risk may be lower.

- **Check for prior repairs.** Ask for maintenance records showing oil changes, bearing inspections, or any past crankshaft bearing work.

- **Get a pre-purchase inspection (PPI) from a Mercedes specialist.** They can check for bearing wear using tools like a **stethoscope or vibration analysis**. A **scraping test** (listening for bearing noise under load) is also common.

- **Later models (2019 2021)** may have **improved bearing designs**, but the issue is still possible. Always verify.

2. **High Cost of Repairs**

Even if the crankshaft bearings are not yet failed, **preventative replacement** can cost **$1,500 $3,000** (labor-intensive due to the engine s complexity). If the bearings are already damaged, the repair bill jumps to **$5,000 $8,000 **, depending on whether the engine needs to be removed and sent to a specialist.

3. **Electrical and Infotainment Issues**

- **Infotainment system glitches** (freezing, touchscreen unresponsiveness).

- **Sensor failures** (e.g., rain sensor, ambient light sensor).

- **Power window or door lock malfunctions**.

These issues are often **software-related** and may require dealer visits, which can be costly.

4. **Comfort vs. Sportiness Trade-Off**

While the A-Class is comfortable, it is **not as sporty or engaging** as some competitors (e.g., BMW 2 Series, Audi A3). The steering feels **heavy and vague**, and the suspension is tuned more for comfort than precision.

5. **Build Quality and Interior Durability**

Some owners report **plastic components feeling cheap**, and the **cabin can be noisy** compared to rivals. The **climate control system** has also had issues in some models.

6. **Depreciation**

Like many luxury cars, the A-Class/CLA loses value quickly. If you plan to keep it long-term, factor in depreciation when calculating ownership costs.

7. **Maintenance Costs**

Mercedes-Benz parts and labor are **expensive** compared to mainstream brands. Regular maintenance (oil changes, timing belt, etc.) adds up over time.

---

### **Ending Conclusion**

- The **crankshaft bearings have been properly maintained** (regular oil changes with high-quality oil, no signs of wear).

- You **get a thorough pre-purchase inspection** from a trusted Mercedes specialist to confirm the engine s health.

- You are **willing to budget for potential future repairs** (especially if the vehicle is older or lacks service history).

- You prioritize **comfort, luxury, and fuel efficiency** over sportiness or cutting-edge tech.

- The **crankshaft bearing issue is confirmed or suspected**, the risk of a **catastrophic engine failure** makes this a **high-risk purchase**.

- You **cannot afford a major engine repair** ($5,000 ), this car is not a safe investment.

- You prefer **more engaging driving dynamics** or **better build quality**, alternatives like the **BMW 2 Series, Audi A3, or Volvo S60** may be worth considering.

---

### **Recommendation**

- **Proceed with caution.** Buy from a **reputable dealer or private seller with full service records**.

- Check oil consumption.

- Listen for bearing noise under load.

- Inspect for oil leaks or contamination.

- **Budget for future maintenance**, especially oil changes (use **Mercedes-approved synthetic oil**).

- **Consider an extended warranty** if available, as it may cover future bearing issues.

- **Avoid purchasing this car** unless you are prepared to **replace the crankshaft bearings immediately** (or risk engine failure).

- **BMW 220i (N20 engine)** Similar power but fewer bearing issues.

- **Audi A3 2.0T (EA888 engine)** Generally more reliable in this segment.

- **Volvo S60 T5 (D5 engine)** Strong turbo engine with better reputation.

- The **CLA250 (C205) is a better choice** than the A-Class (C170) due to its **more refined ride and higher quality materials**.

- **Avoid models with high mileage (>100,000 miles) without recent bearing checks.**

- **Negotiate the price downward** if the seller cannot provide full service history or if the PPI reveals minor issues.

The **M270 engine s crankshaft bearing issue is the dealbreaker** for most buyers. If you can **verify the bearings are healthy** and are prepared for **potential future costs**, this car can be a **decent luxury compact**. Otherwise, **seek alternatives** or **walk away** to avoid a costly repair. Always **p

Details:

BODY TYPE: SEDAN 4-DOOR. MILEAGE: 89K MILES. TRANSMISSION: 7-SPEED AUTOMATIC DCT. COLOR: EXTERIOR CALCITE WHITE / STANDARD FINISH 650.

part #: a2700201 prices

• $18.99-$35.75

specifications cranshafengin:

• for models: Cla250, Fwd
• for makes: Mercedes
• for years: 2014-2021
• mpn: A2700201
• part type: Bearing Engine Crankshaft
• bundle listing: No
• fitment type: Direct Replacement

general cranshafengin:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

payments cranshafengin:

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

seller cranshafengin:

• rating: 99.9%
• city: Grawn, Michigan
• # reviews: 49294

shipping cranshafengin:

• transit: 4-7 Days
• service: Standard
• type: Fixed
• cost: $0.00
• class: Standard

returns cranshafengin:

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

offer cranshafengin:

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

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