High-pressure pump MERCEDES Classe C Break (W203) 320 CDI 224 hp

This category serves Mercedes-Benz owners and repair professionals seeking reliable high pressure pumps for the 320 CDI 224 HP engine, covering model years from 2005 to 2018. Here, you will find remanufactured units designed for direct fitment, eliminating the need for costly OEM replacements while restoring optimal fuel delivery and engine performance.

The range is curated by a wholesale specialist with over a decade of experience in diesel injection systems, ensuring each pump meets strict compatibility standards. By sourcing from certified remanufacturers, we provide a cost-effective alternative that maintains the precision required for this high-performance engine configuration.

Professional uses by trade

Whether you are a professional mechanic diagnosing a misfire or a DIY enthusiast replacing a failing component, understanding the correct high pressure pump for your 320 CDI is essential for restoring engine responsiveness and fuel efficiency.

• Le garagiste independant : Replace the high pressure pump during scheduled maintenance to prevent unexpected breakdowns in high-mileage 320 CDI models, ensuring customer satisfaction with minimal downtime.
• L'automobiliste depanne : Identify a failing pump by erratic idle or sudden power loss, then source a remanufactured unit to avoid costly dealership repairs while restoring smooth acceleration.
• Le passionne qui fait lui-meme : Swap the high pressure pump using basic tools and a repair manual, leveraging bulk-packaged units to reduce costs while maintaining the engine’s original performance levels.
• Der deutsche Kaeufer (DACH) : Prüfen Sie die Kompatibilität der Hochdruckpumpe anhand der Motorcode-Liste, um eine präzise Passform für Ihren Mercedes 320 CDI 224 PS zu gewährleisten und teure Werkstattaufenthalte zu vermeiden.
• Le garagiste independant : Use high pressure pumps from Bosch in bulk orders to streamline inventory, reducing lead times for customers while ensuring consistent quality across multiple repairs.
• L'automobiliste depanne : Order a remanufactured pump with a core deposit to simplify returns of the old unit, avoiding disposal fees and ensuring a smooth transaction process.
• Der deutsche Kaeufer (DACH) : Wählen Sie eine generalüberholte Hochdruckpumpe mit klarer OEM-Referenz, um die Langlebigkeit Ihres 320 CDI zu sichern und teure Nachbesserungen zu vermeiden.

Range comparison

Below, you will find the exact high pressure pump references compatible with the Mercedes 320 CDI 224 HP, each listed with its OEM number and core deposit policy to simplify your selection.

How to choose

Selecting the right high pressure pump involves more than matching the OEM number; consider compatibility with your engine’s fuel system, the pump’s remanufacturing standard, and the return policy for core deposits.

1. Verify the engine code (OM642) printed on your pump’s housing to confirm compatibility with your 320 CDI’s model year and power output specifications.
2. Opt for pumps labeled as generalüberholt or remanufactured to ensure they meet the same tolerances as new units while reducing environmental impact through part reuse.
3. Check the core deposit fee upfront to avoid unexpected costs, as this amount is often refunded upon return of the old pump within the specified timeframe.
4. Prioritize pumps packaged in protective casings to prevent damage during transit, especially when ordering in bulk for workshop inventory.
5. Confirm the pump’s rotation direction and inlet/outlet orientation to match your engine’s fuel flow requirements, avoiding installation errors that could lead to further issues.
6. Select suppliers with transparent return policies for defective units, ensuring you can exchange or refund within a reasonable window without additional hassle.
7. For high-mileage engines, choose pumps with reinforced housings to withstand prolonged stress and maintain consistent fuel pressure over time.

Storage & logistics

Bulk high pressure pumps require controlled storage to preserve their precision components. Store units in a dry, temperature-stable environment away from direct sunlight, using original packaging or equivalent protective materials to prevent contamination. For workshops, organize inventory by OEM reference and model year to streamline picking during repairs. Always handle pumps with care, avoiding drops or impacts that could misalign internal components. Regularly inspect stored units for signs of moisture or corrosion, especially in regions with high humidity, to maintain their functional integrity until installation.

With over 15 years in diesel injection systems, our team has seen how a single high pressure pump failure can cascade into costly engine damage—this is why we only stock units that meet our strict remanufacturing standards, ensuring reliability for every 320 CDI we service.— autoKUR team

Related categories

Browse our other ranges:

• 30 CDI AMG 231 hp
• 270 CDI 170 hp
• 220 CDI 150 hp
• 220 CDI 143 hp
• 220 CDI 136 hp
• 200 CDI 122 hp

Useful references

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