BMW 545i Engine Replacement - Rebuilt & Reconditioned Units from £3,995

BMW 5 Series 545i Engines for Sale | Engine Finders

Need a BMW 5 Series 545i replacement engine? Whether you're facing VANOS solenoid failures in the N62B44 or oil consumption issues in early 2004-2005 models, Engine Finders connects you with UK specialists offering tested, compatible engines specifically for the 545i.

BMW 5 Series 545i Replacement Engines

The 545i was exclusively offered in the E60/E61 chassis (2003-2007) and powered solely by the N62B44 4.4L V8 petrol engine. Unlike later 550i models using the N62B48, the 545i’s N62B44 is prone to specific issues including failing valve stem seals (causing blue smoke on startup), electronic throttle actuator faults (OEM 13517589315), and premature wear in the hydraulic valve lifters. BMW Service Bulletin SI B 11 03 05 addresses excessive oil consumption in early-build N62B44 engines (VINs up to March 2005). The 545i’s unique intake manifold design-without the later N62TU’s updated DISA valves-also contributes to carbon buildup and rough idle, a failure pattern not seen in the 550i.

BMW 5 Series 545i Models - Engine Codes

The 545i was only ever fitted with one engine code across its production run, but variations exist by model year and emissions standard:

• N62B44 (2003-2005): 325hp V8 with Siemens MSV70 DME; known for oil consumption due to soft valve stem seals (OEM 11127565890) and failing crankcase ventilation valves.
• N62B44 (2006-2007): Updated with revised PCV system and hardened valve guides; still susceptible to electronic throttle actuator failure (OEM 13517589315).
• N62B44 EU4 Spec: Fitted to UK-market 545i until 2006; lacks secondary air injection, reducing complexity but increasing carbon buildup in the intake.
• N62B44 US-Spec: Includes additional emissions hardware not found on European models, affecting compatibility when sourcing replacement engines in the UK.

All 545i engines share the same block casting (7025602), but ECU calibration, throttle bodies, and intake manifolds differ by year-making year-specific matching critical for plug-and-play installation.

Buy Used and Second-Hand BMW 5 Series 545i Engines

For the 545i, we strongly advise against standard used engines due to the N62B44’s high failure rate in unverified units. Instead, consider:

• Reconditioned: Fully stripped, inspected, and rebuilt with new valve stem seals, updated PCV valves, and tested throttle actuators.
• Rebuilt: Includes replacement of known weak points-hydraulic lifters, timing chain guides, and crankcase ventilation components.

Every engine is matched to your 545i’s VIN to ensure correct ECU, throttle body, and emissions configuration-critical due to mid-cycle N62B44 updates.

BMW 5 Series 545i Engines in Stock

Our reconditioned 545i engines include critical updates: new valve stem seals (OEM 11127565890), revised PCV valve (OEM 11157535499), and tested electronic throttle actuator (OEM 13517589315). We also replace the hydraulic valve lifters-a common wear point causing ticking noises in high-mileage N62B44 engines.

• Full compression and leak-down testing
• Oil pressure verification at 2,000 RPM
• Idle stability and VANOS response validation

Each engine undergoes a 45-minute dynamometer test simulating E60-specific load profiles to confirm performance and reliability before dispatch.

Warranty for Replacement BMW 5 Series 545i Engines

Reconditioned and rebuilt 545i engines come with a 12-month unlimited mileage warranty covering all internal components.

• Excludes damage from improper installation or pre-existing vehicle faults
• N62B44 valve stem seal failures are covered only if original seals were replaced during rebuild

Engine Finders is a price comparison service and does not sell engines directly. Warranty terms are set by our verified UK suppliers and vary by provider.