Frequently asked questions
About this category
The Mercedes-Benz OM651 220 D 170 hp engine, found in models like the W204 C-Class and W212 E-Class, demands precision-engineered components to maintain its balance of efficiency and performance. This category focuses exclusively on fuel injectors designed for this motorisation, offering a range of reconditioned and exchange-standard options that restore original functionality without the expense of new parts.
As a wholesale supplier specialising in exchange-standard components, we source injectors for the OM651 220 D 170 hp from leading manufacturers, ensuring each unit undergoes rigorous testing for flow rate, spray pattern, and leak tightness before being made available to garages and DIY enthusiasts.
Professional uses by trade
Whether you are a professional mechanic diagnosing a misfire or a car owner tackling repairs yourself, understanding how to select and install the correct injector for the OM651 220 D 170 hp is essential for restoring engine performance and avoiding costly downtime.
- Le garagiste independant : Replace a faulty injector in the OM651 220 D 170 hp to resolve rough idling or excessive smoke from the exhaust, ensuring the vehicle passes emissions tests without delay.
- L'automobiliste depanne : Diagnose a loss of power in your 220 D 170 hp by checking for uneven fuel delivery from the injectors, a common symptom of internal wear or carbon buildup.
- Le passionne qui fait lui-meme : Swap out a clogged injector in your OM651-powered Mercedes with a reconditioned unit to restore smooth acceleration and fuel efficiency, following a straightforward removal and installation process.
- Der deutsche Kaeufer (DACH) : Ein defekter Injektor im OM651 220 D 170 hp führt oft zu ungleichmäßigem Leerlauf oder erhöhtem Kraftstoffverbrauch, was durch einen generalüberholten Austauschteil behoben werden kann.
- Le garagiste independant : Address a flashing glow plug warning in a 220 D 170 hp by inspecting the injectors for internal leaks, which can disrupt cylinder pressure and trigger fault codes.
- L'automobiliste depanne : Notice a strong diesel odour or black smoke from your OM651 engine? These signs often point to an injector failing to seal properly, requiring immediate replacement with a tested unit.
- Der deutsche Kaeufer (DACH) : Ein seltener, aber typischer Fehler beim OM651 ist ein defekter Injektor, der zu ungleichmäßigem Motorlauf führt, was durch einen generalüberholten Ersatzteil behoben werden kann.
Range comparison
Below, you will find a selection of reconditioned fuel injectors compatible with the Mercedes-Benz OM651 220 D 170 hp, each tested for performance and durability to ensure a seamless fit and function.
| Range | Use | Format |
|---|---|---|
| Injector DELPHI 28309052 | direct replacement for OM651 220 D 170 hp | |
| Injector Bosch 0445117035 | high-flow injector for tuned OM651 applications | |
| Injector DELPHI 28236714 | standard injector for stock OM651 engines |
How to choose
Selecting the right injector for the OM651 220 D 170 hp requires attention to compatibility, condition, and intended use, whether for a standard replacement or a performance upgrade.
- Verify the injector’s compatibility with your vehicle’s exact motorisation code, as minor variations can affect fitment and performance in the OM651 220 D 170 hp.
- Inspect the condition of the injector’s electrical connector and sealing surfaces to ensure no corrosion or damage could compromise its function in the OM651 engine.
- Choose between standard-flow and high-flow injectors based on your engine’s tuning level, as the OM651 220 D 170 hp responds differently to fuel delivery changes.
- Opt for reconditioned units with documented testing for spray pattern and leak tightness to deliver consistent performance in the OM651 220 D 170 hp.
- Consider the injector’s age and storage conditions, as prolonged exposure to moisture or extreme temperatures can degrade seals and internal components.
- For professional workshops, select injectors with clear traceability and batch numbers to streamline warranty claims and inventory management.
- Prioritise suppliers who offer exchange-standard options, allowing you to return the old injector and reduce waste while maintaining cost efficiency.
Storage & logistics
Proper storage of reconditioned injectors for the OM651 220 D 170 hp is critical to preserving their condition before installation. Keep units in a dry, temperature-controlled environment away from direct sunlight, and avoid stacking them to prevent damage to delicate components. For bulk orders, use sealed containers with desiccant packs to mitigate humidity risks, and label each batch with the motorisation code and date of receipt to ensure traceability and FIFO rotation in your workshop.
Since 2026, we’ve supplied reconditioned injectors for the OM651 220 D 170 hp to workshops across Europe, where precision and reliability are non-negotiable—our units consistently meet the demands of high-mileage engines and tuned applications alike.— autoKUR team
Related categories
Browse our other ranges:
- 300 De 306 hp
- 300 D 245 hp
- 300 BlueTEC Hybrid / H 231 hp
- 250 BlueTEC 204 hp
- 250 BlueTEC / D 204 hp
- 250 CDI 204 hp
Useful references
For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.