The BMW N62 B48 B is a 4,799 cc, V8 naturally aspirated petrol engine produced between 2003 and 2010. It featured dual overhead camshafts (DOHC), 32 — valve configuration, and BMW's Valvetronic II system with double VANOS variable valve timing. In standard tune, it delivered 273 kW (372 PS) and 490 Nm of torque, offering smooth throttle response and refinement for luxury applications.
Fitted to models including the E65 7 Series and E60 5 Series, the N62 B48 B was engineered fo…
Production years 2003–2010 meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/2352).
The BMW N62 B48 B is a 4,799 cc V8 naturally aspirated petrol engine engineered for luxury and performance platforms (2003–2010). It combines Valvetronic II with double VANOS to deliver precise throttle control and smooth power delivery. Designed to meet Euro 4 standards, it balances performance with responsiveness in BMW's high-end petrol strategy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 4,799 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 92.0 mm × 85.8 mm | |
Power output | 273 kW (372 PS) @ 6,300 rpm | |
Torque | 490 Nm @ 3,400 rpm | |
Fuel system | Sequential multipoint fuel injection (SME) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Double-row roller chain (DOHC) | |
Oil type | BMW Longlife-01 (SAE 5W-30) | |
Dry weight | 210 kg |
The BMW N62 B48 B was used across BMW's E65/E60 platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific adaptations-increased cooling capacity in the E65 7 Series and revised intake manifolds in the E60 5 Series-and from 2007 the updated high-pressure fuel pump with improved internal components, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The N62 B48 B's primary reliability risk is high-pressure fuel pump failure on early builds, with elevated incidence in vehicles with extended service intervals. Internal BMW quality reports from 2008 indicated a significant number of pre-2007 units required pump replacement before 100,000 km, while UK DVSA records show fuel system faults as a top cause of drivability complaints in E60/E65 petrol models. Extended service intervals and use of low-octane fuel increase thermal stress, making fuel quality and schedule adherence critical.
Analysis derived from BMW technical bulletins (2003-2010) and UK DVSA failure statistics (2007-2016). Repair procedures should follow manufacturer guidelines.
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The N62 B48 B is mechanically robust with good longevity when properly maintained. Early models (2003-2007) are prone to high-pressure fuel pump failure, but post-2007 revisions resolved this with improved internals. Regular oil changes (every 12,000 km), use of correct BMW Longlife-01 oil, and attention to fuel quality ensure long-term reliability. The strong V8 architecture supports high mileage with minimal wear when serviced correctly.
Primary issues include HPFP failure (especially pre-2007), Valvetronic motor faults, VANOS solenoid failures, and coolant leaks from the expansion tank. These are well-documented in BMW service bulletins and stem from component aging, thermal stress, and maintenance neglect. The 2007 fuel pump update significantly improved system durability.
The N62 B48 B was used in the E60 5 Series (545i), E65 7 Series (745i), and E70 X5 (xDrive48i). It was part of BMW's naturally aspirated V8 strategy, offering balanced performance in luxury and SUV models. No licensed applications outside BMW. The engine was succeeded by the N63 engine family.
Yes. The N62 B48 B responds well to ECU remapping, with safe gains of +50-80 PS achievable on stock hardware. Aftermarket upgrades like performance intakes and exhausts allow modest increases. The robust V8 bottom end supports moderate tuning without internal modifications. Enthusiasts often pair ECU tuning with intake and exhaust modifications for improved throttle response.
In combined driving, expect 12.0–15.0 L/100km (24–19 mpg UK). Highway cruising can achieve ~10.0 L/100km (~28 mpg UK), while city driving may exceed 18.0 L/100km (16 mpg UK). Real-world figures depend on driving style and vehicle weight, with E70 models generally less efficient than E60. The engine's smoothness contributes to relaxed motorway efficiency.
Yes. The N62 B48 B is an interference engine. If the timing chain fails or skips, pistons will contact open valves, causing catastrophic internal damage. While the double-row roller chain is durable, any signs of rattle or tensioner wear should be investigated immediately to prevent engine seizure. Regular oil changes help maintain chain tensioner function and lubrication.
BMW specifies SAE 5W-30 oil meeting BMW Longlife-01 standard. Use a high-quality synthetic designed for petrol engines. Change oil every 12,000 km or annually to protect the HPFP, Valvetronic system, and timing chain. Proper lubrication is essential for long-term reliability, especially under sustained load or high-temperature operation.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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