Fuel injector MERCEDES Sprinter 1 (903) 311 311 CDI 109 hp

The Mercedes-Benz 311 CDI 109 hp, powered by the OM646 diesel engine, demands reliable fuel injectors to maintain optimal combustion and efficiency. This category gathers remanufactured injectors designed for exchange-standard use, addressing common failures such as clogged nozzles, leaking seals, or internal wear that disrupt engine balance. Whether you are a professional mechanic troubleshooting a customer’s vehicle or an owner performing repairs yourself, these components restore the engine’s precision without the expense of brand-new parts.

Each injector in this range undergoes a rigorous remanufacturing process, where worn components are replaced, internal passages are cleaned, and performance is tested against OEM specifications. As a wholesale supplier, we aggregate these high-quality remanufactured parts from specialized producers, ensuring consistent supply and competitive pricing for garages and private buyers who prioritize reliability over replacement costs.

Professional uses by trade

Different users approach injector replacement with distinct priorities: garages focus on turnaround time and bulk availability, while DIY owners seek clarity on compatibility and installation ease. Professionals in Germany and beyond trust these parts for their durability and adherence to Mercedes-Benz tolerances.

• Le garagiste independant : Replace faulty injectors in batches to minimize vehicle downtime during fleet maintenance or customer repairs, ensuring each unit meets OM646 performance benchmarks.
• L'automobiliste depanne : Diagnose misfires or white smoke by swapping the suspected injector with a remanufactured unit, restoring smooth engine operation without visiting a workshop.
• Le passionne qui fait lui-meme : Order a single injector with clear OEM reference matching, then install it using basic tools, avoiding costly dealer visits for a straightforward repair.
• Der deutsche Kaeufer (DACH) : Purchase injectors labeled for the 311 CDI 109 hp with German-language documentation, ensuring seamless integration into Mercedes-Benz systems without language barriers.
• Le garagiste independant : Use injectors with pre-applied seals to reduce installation errors, speeding up the replacement process for high-volume repair orders.
• L'automobiliste depanne : Opt for injectors tested for fuel pressure consistency, preventing recurring issues like uneven cylinder firing or premature wear.
• Der deutsche Kaeufer (DACH) : Select injectors packaged in protective casings to prevent damage during transit, especially when ordering from international suppliers.

Range comparison

Below, you will find the exact remanufactured injector references compatible with the Mercedes-Benz 311 CDI 109 hp OM646 engine, each verified for fitment and performance standards.

How to choose

Selecting the right injector involves more than matching the OEM reference; consider factors like operating pressure, nozzle design, and electrical resistance to ensure seamless integration with your engine’s demands.

1. Verify the injector’s OEM code against your engine’s build year to avoid mismatches, as Mercedes-Benz updated injector designs across production runs.
2. Prioritize units with ceramic-coated nozzles for extended durability, especially in high-mileage engines prone to carbon buildup.
3. Check the injector’s resistance rating (ohms) to confirm compatibility with your vehicle’s ECU signals, preventing misfires or error codes.
4. Opt for injectors with pre-lubricated O-rings to simplify installation and reduce the risk of leaks during the first startup.
5. Select suppliers who provide batch testing certificates, ensuring each injector meets pressure and spray-pattern benchmarks before shipment.
6. For performance-tuned engines, choose high-flow variants that maintain precision at elevated fuel pressures without compromising atomization.
7. Avoid injectors with visible corrosion or pitting on the body, as these flaws can indicate internal damage or improper storage conditions.

Storage & logistics

Proper storage of remanufactured injectors is critical to preserving their performance. Keep units in a climate-controlled environment, away from direct sunlight and humidity, to prevent seal degradation or electrical component corrosion. For bulk orders, use sealed plastic bins with desiccant packs to absorb moisture, and store pallets off the floor to avoid contact with concrete surfaces. Always handle injectors by the body or electrical connector, never the nozzle, to prevent damage to the delicate spray holes. Before installation, inspect each unit for shipping damage or contamination, and discard any with cracked housings or exposed wiring.

With over a decade of supplying remanufactured injectors to workshops across Europe, our team has seen how a single faulty unit can disrupt an entire engine’s balance—this is why we rigorously test every Bosch reference before it reaches your bench.— autoKUR team

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• High-pressure pump
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• Turbocharger

Useful references

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