4PCS Fuel Injectors For Mercedes-Benz C230 1.8L 2003-2005 – Complete Guide (2710780549)
The Mercedes-Benz C230 (W203 chassis) equipped with the 1.8L supercharged M271 engine is a beloved vehicle among luxury compact sedan enthusiasts. However, after years of service, the fuel injectors—critical components responsible for delivering precisely metered fuel into the combustion chamber—can degrade, leading to rough idling, misfires, poor fuel economy, and even failed emissions tests.
If you're experiencing any of these issues, replacing all four fuel injectors at once is the most effective solution. The 4pcs Fuel Injectors For Mercedes-Benz C230 1.8L 2003 2004 2005 (OE# 2710780549) from Koeep offers a direct OEM-quality replacement that restores engine performance and driving confidence.
1. Overview: 4PCS Fuel Injectors for Mercedes-Benz C230 1.8L (2003–2005)
The M271 1.8L Kompressor (supercharged) engine found in the 2003–2005 Mercedes-Benz C230 is a precision-engineered powerplant. Its fuel injection system relies on four high-pressure, electronically controlled injectors to deliver an optimal air-fuel mixture. Over time, carbon buildup, varnish deposits, and normal wear can compromise injector performance.
The Koeep 4PCS Fuel Injectors Set (PN: 2710780549 / 2710780023) is a complete replacement kit of four injectors designed specifically for this engine. Each injector is manufactured to meet or exceed OEM specifications, ensuring a seamless fit and reliable performance.
Vehicle Compatibility
- Make: Mercedes-Benz
- Model: C230 (W203 Chassis)
- Engine: 1.8L M271 Supercharged (Kompressor)
- Years: 2003, 2004, 2005
OEM Cross-Reference Numbers
- 2710780549 (A2710780549)
- 2710780023 (A2710780023)
- FJ902
2. Detailed Product Features & Functionality
🔧 OEM Direct Fit
Each injector is a direct replacement for the original factory units. No modifications, adapters, or wiring changes are needed. Simply remove the old injectors and install the new ones.
⚡ Precision Fuel Delivery
Engineered to deliver the exact fuel flow rate required by the M271 engine, these injectors ensure a stoichiometric air-fuel ratio for optimal combustion efficiency.
🔒 Includes O-Rings
Each injector comes with new O-rings pre-installed, eliminating the need to purchase separate sealing components. This ensures a leak-free seal against the fuel rail and intake manifold.
🛠️ 2-Terminal Electrical Connector
The injectors feature a standard 2-pin electrical connector that matches the factory wiring harness plug, providing reliable electronic communication with the ECU.
3. Why Replace Fuel Injectors? – Common Symptoms
If your C230 is exhibiting any of the following symptoms, it's highly likely that the fuel injectors need replacement:
- Rough Idle: The engine shakes or vibrates excessively when stopped at traffic lights.
- Engine Misfires: Check engine light illuminates with codes P0300–P0304 (random/multiple cylinder misfires).
- Poor Fuel Economy: A 15–30% drop in miles per gallon is a strong indicator.
- Hard Starting: The engine cranks longer than usual before firing up.
- Failed Emissions Test: High hydrocarbon (HC) readings due to incomplete combustion.
- Fuel Smell: Raw fuel odor from the exhaust or engine bay.
4. Technical Specifications & Comparison
| Specification | Koeep Fuel Injector | OEM Standard |
|---|---|---|
| Part Numbers | 2710780549 / 2710780023 | 2710780549 / A2710780549 |
| Quantity per Set | 4 Injectors | 4 Injectors |
| Terminal Quantity | 2-Pin | 2-Pin |
| O-Rings Included | Yes (Pre-installed) | Yes |
| Application | Mercedes C230 1.8L 2003–2005 | Mercedes C230 1.8L 2003–2005 |
| Engine Type | M271 Kompressor | M271 Kompressor |
| Quality Standard | OEM Equivalent | OEM |
| Cost Efficiency | ⭐ High Value | Premium Price |
5. External Citations & Trust Metrics
When it comes to replacing fuel injectors on the Mercedes-Benz C230, professional recommendations and community feedback consistently emphasize the importance of using OE-quality parts. Here's what trusted sources indicate:
- Go-Parts Garage reports that rough idle, engine misfires, and poor acceleration are the top three symptoms of failing injectors on the 1997–2007 Mercedes C230 platform.
- Multiple automotive forums and YouTube technicians (e.g., Mercedes-Benz W203 C-Class fuel injector replacement guides) confirm that the 2710780549 and 2710780023 part numbers are the correct OEM specifications for the 2003–2005 C230 1.8L.
- Amazon and Walmart marketplace listings for identical part numbers (FJ902, 2710780549) show consistent consumer demand and positive compatibility feedback for this injector set.
- The M271 engine is known for its sensitivity to fuel delivery issues—replacing injectors in complete sets of four (rather than individually) is widely recommended to maintain balanced fuel trims and smooth idle quality.
Ready to Restore Your C230's Performance?
Don't let worn fuel injectors compromise your Mercedes-Benz driving experience. The 4pcs Fuel Injectors For Mercedes-Benz C230 1.8L (2003–2005) are available now at Koeep.com. Each set includes four precision-engineered injectors—everything you need for a complete, professional-grade replacement.
6. Frequently Asked Questions (FAQ)
Yes. These injectors are specifically designed for the 2003, 2004, and 2005 Mercedes-Benz C230 equipped with the 1.8L M271 Kompressor engine. They are a direct bolt-on replacement with OE part numbers 2710780549, A2710780549, and 2710780023.
Highly recommended. Replacing all four injectors at the same time ensures balanced fuel delivery across all cylinders, prevents future drivability issues, and saves you the labor cost of replacing them one at a time. The Koeep 4PCS set gives you exactly what you need.
Yes. Each injector comes with O-rings pre-installed. This means you don't need to purchase additional sealing components separately. However, it's always good practice to lubricate the O-rings lightly with clean engine oil before installation to prevent tearing.
Basic hand tools including a 10mm socket, Torx T25 and T30 bits, fuel rail removal tools (if needed), and a set of picks for removing electrical connectors. Always relieve fuel system pressure before disconnecting any fuel lines. We recommend consulting a Mercedes-Benz service manual or a professional mechanic if you're not experienced with fuel system work.
If the check engine light is caused by misfire codes (P0300–P0304) or fuel trim codes (P0171, P0172), replacing faulty injectors is very likely to resolve the issue. After installation, clear the codes with an OBD-II scanner and take the vehicle for a test drive to confirm the light stays off.
Both part numbers are used interchangeably for the Mercedes C230 1.8L M271 engine. The 2710780549 is a superseded or revised version of the earlier 2710780023, offering the same fit, form, and function. The Koeep injector set is compatible with both OEM numbers.
These injectors are primarily designed for the C230 1.8L (2003–2005). Some other Mercedes models with the M271 engine may also be compatible, but we recommend verifying your vehicle's engine code and OEM part number before purchasing. Check the product page for full compatibility details.
7. Final Verdict
If you own a 2003–2005 Mercedes-Benz C230 with the 1.8L supercharged engine and you're experiencing rough running, poor fuel economy, or misfire issues, the fuel injectors are a likely culprit. The 4pcs Fuel Injectors For Mercedes-Benz C230 1.8L (OE# 2710780549) from Koeep provide a high-quality, cost-effective solution that restores factory-level fuel delivery and engine performance. With pre-installed O-rings, direct OEM fitment, and compatibility with both 2710780549 and 2710780023 standards, this set is a smart investment for any C230 owner looking to keep their luxury sedan running smoothly for years to come.