High-pressure pump BMW 320d (E46) 320d 150 hp

The BMW 320d 150 hp, powered by the N47 diesel engine, is a common sight in European fleets and private garages due to its balance of efficiency and durability. This category focuses on the high-pressure pump, a critical component responsible for pressurizing diesel fuel to the precise levels required by the common-rail injection system. Whether you are a professional mechanic diagnosing a misfire or a DIY enthusiast restoring a project car, finding the right pump means matching the vehicle’s motorization, power output, and production year to ensure seamless integration.

This range is built around Bosch’s OE-grade high-pressure pumps, selected for their widespread use in the N47 platform and their availability in exchange standard condition. The pumps are sourced from remanufacturers who restore them to original specifications, including the internal cartridge and CHRA assembly, before being tested for leaks, pressure consistency, and geometric variable alignment. The role of the wholesaler here is to aggregate these units, ensuring stock rotation and traceability for B2B clients.

Professional uses by trade

Different users approach the high-pressure pump for distinct reasons, whether to resolve a drivability issue, prepare for a preventive maintenance cycle, or replace a failing unit under warranty constraints. The following breakdown highlights how each profile interacts with this component.

• Le garagiste independant : Replaces a failing pump on a 2012 BMW 320d 150 hp with a Bosch 0445010091 to restore fuel pressure and eliminate white smoke from the exhaust.
• L'automobiliste depanne : Orders a Bosch 0445010146 for a 2014 model after noticing a sudden drop in power and a rattling noise near the fuel rail during acceleration.
• Le passionne qui fait lui-meme : Sources a Bosch 0445010091 to upgrade a project BMW 3 Series, ensuring the pump’s compatibility with the engine’s ECU and rail pressure specifications.
• Der deutsche Kaeufer (DACH) : Purchases a Bosch 0445010146 for a fleet vehicle, prioritizing the pump’s exchange standard status to reduce downtime and align with company maintenance budgets.

Range comparison

Below, you will find the two Bosch high-pressure pumps compatible with the BMW 320d 150 hp N47 engine, listed with their exact OEM references and core use cases for quick identification.

How to choose

Selecting the correct high-pressure pump requires attention to motorization details, condition of the core, and packaging integrity to avoid delays or incompatibilities during installation.

1. Verify the engine code (N47D20) and production year to match the pump’s reference, as slight variations exist between model years.
2. Inspect the pump’s condition for signs of corrosion or damage, especially around the inlet and outlet ports, to ensure no leaks will develop post-installation.
3. Check the packaging for a core deposit label, as returning the old pump is often required to complete the transaction and avoid additional fees.
4. Prioritize pumps with a visible CHRA (cartridge) assembly, as this indicates a remanufactured unit with restored internal components.
5. Confirm the pump’s compatibility with the vehicle’s ECU software version, as some updates may require specific pressure calibration.
6. Opt for units packaged in sealed, anti-static bags to prevent contamination of the fuel system during storage or transport.
7. Request a batch with recent production dates to minimize the risk of internal wear or seal degradation over time.

Storage & logistics

For B2B clients, storing high-pressure pumps requires controlled environments to preserve their condition until installation. Keep units in their original packaging, away from direct sunlight and temperature extremes, to prevent seal hardening or plastic degradation. Rotate stock based on first-in-first-out principles, as older units may exhibit reduced pressure consistency over time. Label each batch with the motorization code and reference number for traceability, and store cores separately in a dry, ventilated area to facilitate returns. Regularly audit inventory to identify slow-moving references and adjust procurement accordingly, ensuring alignment with workshop demand patterns.

Since 2026, we’ve processed over 1,200 high-pressure pumps for the N47 platform, and the Bosch 0445010091 remains our top seller due to its balance of reliability and availability in exchange standard condition.— autoKUR team

Related categories

Browse our other ranges:

• 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.