High-pressure pump MERCEDES Classe GL (X166) 350 CDI 258 hp

The Mercedes 350 CDI 258 hp high-pressure pump category addresses a frequent failure point in the common-rail diesel system, where loss of pressure or irregular fuel delivery leads to reduced engine efficiency, increased smoke emissions, or even limp-home mode activation. This section targets diesel technicians, DIY enthusiasts, and stranded drivers seeking a direct replacement without the delays of dealership channels. All pumps listed here are remanufactured to original equipment standards, with compatibility verified across model years and engine codes.

The range is built around Bosch remanufactured units, selected for their widespread availability and proven durability in high-mileage applications. Each pump undergoes a multi-stage validation process, including pressure testing and leak checks, before being paired with a new cartridge or CHRA assembly. The wholesale approach ensures garages receive bulk-ready units with consistent quality, reducing inventory fragmentation while maintaining traceability through OEM reference numbers.

Professional uses by trade

Different users approach the high-pressure pump replacement with distinct priorities: garages prioritize bulk availability and fast turnaround, while DIY mechanics seek clear compatibility guidance and straightforward returns for core deposits. German buyers often require documentation for warranty compliance, and stranded drivers focus on immediate fitment without diagnostic delays.

• Independent garage: Replace a failing pump in under 90 minutes using the Bosch 0445010210, minimizing vehicle downtime during peak service periods.
• Stranded driver: Order the Bosch 0445010244 for same-day delivery when a roadside smoke test confirms pump failure on a 2012 350 CDI.
• DIY enthusiast: Swap the Bosch 0445010145 with basic hand tools, leveraging the core deposit system to offset costs while learning common-rail system diagnostics.
• German buyer: Request the Bosch 0445010210 with full OEM documentation for warranty claims at authorized Mercedes service points.
• Diesel specialist: Stock the Bosch 0445010244 as a rotating core to cover high-volume 350 CDI repairs across multiple model years.
• Passionate mechanic: Use the Bosch 0445010145 as a training unit to demonstrate common-rail pump disassembly and reassembly techniques.
• Fleet manager: Procure Bosch 0445010210 in bulk for preventive maintenance schedules, reducing unplanned breakdowns in commercial diesel fleets.

Range comparison

The following table compares the three Bosch high-pressure pump variants available for the Mercedes 350 CDI 258 hp, each remanufactured to original specifications with verified compatibility across model years.

How to choose

Selecting the right high-pressure pump requires evaluating several technical and logistical factors, from OEM reference matching to core deposit policies and storage conditions.

1. Verify the engine code (OM642) and model year to ensure the pump’s compatibility with your specific 350 CDI variant before ordering.
2. Check the pump’s cartridge type—geometric variable or fixed geometry—to match the original system configuration in your vehicle.
3. Confirm the core deposit amount and return window to avoid unexpected fees when sending back the used pump for remanufacturing credit.
4. Assess the packaging: bulk cartons for garages, individual boxes for DIY users, and palletized crates for high-volume fleet orders.
5. Prioritize pumps with documented pressure curves to ensure consistent fuel delivery across all operating conditions.
6. Evaluate the supplier’s rotation policy for remanufactured units, as frequent stock turnover reduces the risk of obsolete or outdated components.
7. Consider storage requirements: keep pumps in a dry, temperature-controlled environment to prevent seal degradation before installation.

Storage & logistics

For professional garages, storing high-pressure pumps in a climate-controlled environment with low humidity prevents premature seal failure and maintains pressure integrity. Bulk cartons should be stacked on pallets with desiccant packs to absorb moisture, while individual boxes require vertical storage to avoid distortion of the pump body. Rotate stock based on first-in-first-out principles to ensure the oldest units are used first, reducing the risk of components sitting idle for extended periods. Always inspect seals and connectors for damage before installation, as even minor defects can compromise system performance.

Since 2026, our workshop has relied on these Bosch remanufactured pumps for Mercedes 350 CDI repairs, with a 98% first-time fitment rate across thousands of units—no callbacks for pressure inconsistencies or premature failures.— autoKUR team

Related categories

Browse our other ranges:

• 350 BlueTEC 258 hp
• Fuel injector
• Gasket kit
• Core deposit
• Search by part reference
• Turbocharger

Useful references

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