Fuel injector MERCEDES Classe A (W169) 180 CDI 109 hp

The Mercedes-Benz OM651 180 CDI 109 hp category covers high-pressure injectors designed for diesel engines produced between 2008 and 2018, addressing common failure modes such as misfires, excessive soot, or sudden power loss. These injectors are critical to the engine’s common-rail system, where precise fuel atomization dictates performance and emissions compliance. Whether you are a professional mechanic troubleshooting a customer’s vehicle or an enthusiast performing your own repairs, this category provides the exact replacement part needed to restore original function without compromising reliability.

The range is built around Bosch’s OE-grade injectors, selected for their durability and compatibility with the OM651’s 2,143 cc displacement and 109 horsepower output. Wholesale suppliers play a key role in this ecosystem, offering bulk packaging and core deposit programs that reduce overhead for workshops while ensuring traceability from warehouse to vehicle. This structure allows professionals to maintain stock levels efficiently without tying up capital in unused inventory.

Professional uses by trade

Different users approach the OM651 injector category with distinct priorities: garages prioritize turnaround speed and bulk pricing, DIY enthusiasts seek clarity on fitment, and German buyers expect documentation in their language. Each group benefits from a clear understanding of how these injectors integrate into the engine’s fuel system.

• Le garagiste independant : Replace a faulty injector during a routine service to avoid repeat complaints and uphold workshop reputation for reliability.
• L'automobiliste depanne : Swap the failing injector yourself using basic tools to get the vehicle back on the road without a costly tow.
• Le passionne qui fait lui-meme : Verify injector compatibility with your OM651’s build year before ordering to prevent mismatched deliveries.
• Der deutsche Kaeufer (DACH) : Request German-language support and documentation to ensure seamless integration with local repair standards.
• Le garagiste independant : Order injectors in sets to standardize stock and reduce the risk of partial failures in multi-cylinder engines.
• L'automobiliste depanne : Check for core deposit policies when purchasing to offset the cost of returning the old injector.
• Der deutsche Kaeufer (DACH) : Confirm that the injector’s spray pattern matches the OM651’s design specifications for optimal combustion.

Range comparison

The following table compares the three Bosch injectors compatible with the Mercedes-Benz OM651 180 CDI 109 hp, highlighting their unique fitments and packaging options for professionals and DIY users alike.

How to choose

Selecting the right injector for the OM651 180 CDI 109 hp requires attention to build year, engine code, and intended use, as each variant serves a specific role in the fuel system’s performance.

1. Verify the engine code (OM651) stamped on the cylinder block to confirm injector compatibility before ordering.
2. Check the injector’s resistance rating to match the OM651’s common-rail pressure sensor specifications for seamless integration.
3. Prioritize injectors with a documented service history to ensure consistent spray patterns and longevity in high-mileage engines.
4. For performance applications, select high-flow variants that support increased fuel delivery without exceeding the rail’s pressure limits.
5. Opt for bulk packaging if stocking multiple injectors to streamline workshop inventory and reduce per-unit costs.
6. Ensure the injector’s connector type aligns with the OM651’s wiring harness to avoid wiring modifications during installation.
7. Confirm the core deposit policy with your supplier to minimize expenses when returning the old injector for recycling.

Storage & logistics

Professional workshops should store OM651 injectors in a climate-controlled environment, away from moisture and direct sunlight, to preserve their precision components. Bulk shipments should be organized by engine code and build year to facilitate quick retrieval during busy service periods. Core deposit programs require clear labeling of returned injectors to avoid mix-ups with new stock, and suppliers typically provide prepaid shipping labels to simplify the process. Always handle injectors with care, using anti-static gloves to prevent damage to sensitive electronics or sealing surfaces.

Since 2026, our team has processed thousands of OM651 injectors, refining our selection to match the exact tolerances of Mercedes-Benz’s diesel architecture—no guesswork, just precision-engineered replacements.— autoKUR team

Related categories

Browse our other ranges:

• 200 CDI 140 hp
• 200 CDI 136 hp
• 160 CDI 82 hp

Useful references

For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.