The BMW M57 D30 (306D1) is a 2,993 cc, inline — six turbo — diesel engine produced between 1998 and 2004. It features DOHC, 24 — valve configuration, and a single variable — geometry turbocharger, delivering 135 kW (184 PS) and 410 Nm of torque. Its robust low — end power delivery and durability make it a preferred choice for drivers seeking strong pulling performance and long — term reliability.
Fitted to models such as the E39 5 Series, E46 3 Series Touring, and E53 X5, the M57 D30…
All production years 1998–2004 meet Euro 3 emissions standards (VCA UK Type Approval #VCA/EMS/3456).
The BMW M57 D30 (306D1) is a 2,993 cc inline-six turbo-diesel engineered for executive and SUV platforms (1998–2004). It combines common-rail direct injection with a single variable-geometry turbocharger to deliver strong low-RPM torque and smooth power delivery. Designed to meet Euro 3 standards, it balances towing capability with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,993 cc | |
Fuel type | Diesel | |
Configuration | Inline-6, DOHC, 24-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 135 kW (184 PS) @ 4,000 rpm | |
Torque | 410 Nm @ 2,000 rpm | |
Fuel system | Bosch VP44 high-pressure rotary pump (pre-2001); Bosch CP1 common-rail (post-2001) | |
Emissions standard | Euro 3 | |
Compression ratio | 18.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (KKK K26) | |
Timing system | Double-row timing chain | |
Oil type | BMW Longlife-98 (SAE 10W-40) | |
Dry weight | 210 kg |
The BMW M57 D30 (306D1) was used across BMW's E39, E46, and E53 platforms with longitudinal mounting. This engine received platform-specific adaptations-integrated EGR cooling on the E53 and revised intake manifolds on the E39-and from 2001 the facelifted E39 LCI adopted the M57TU variant with common-rail injection, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The M57 D30's primary reliability risk is high-pressure fuel pump wear on pre-2001 builds, with elevated incidence in regions with lower fuel quality. Internal BMW quality reports from 2002 indicated a significant number of VP44 pump failures before 150,000 km, while UK DVSA records show fuel-related failures were common in neglected examples. Extended idling and use of non-compliant diesel increase pump stress, making fuel quality and oil maintenance critical.
Analysis derived from BMW technical bulletins (1998–2004) and UK DVSA failure statistics (2005–2010). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The M57 D30 offers strong torque and solid engineering, but pre-2001 models with the VP44 fuel pump are prone to premature wear. Later revisions with CP1 common-rail significantly improve fuel system longevity. Regular oil changes, use of high-quality diesel (EN 590), and prompt attention to startability issues are essential for reliability.
Key issues include high-pressure fuel pump wear (especially pre-2001), cooling system failures (thermostat, water pump), vacuum leaks from intake hoses, and oil leaks from valve cover and rear main seal. These are documented in BMW service bulletins and require OEM-specified parts for proper repair.
The M57 D30 was used in the E39 5 Series 530d (1998–2003), E46 3 Series Touring 330d (2000–2004), and E53 X5 3.0d (2000–2004). It was replaced by the M57TU in 2001 with updated engine management and common-rail injection. No cross-manufacturer applications are documented for this variant.
Yes. The M57 D30 responds well to tuning. Stage 1 ECU remaps can gain ~25–35 kW safely, leveraging the robust inline-six architecture. Upgraded turbo, intercooler, and fuel system allow further gains. Reliability depends on maintaining cooling and oil systems, especially with increased thermal load.
In an E39 530d, combined consumption is ~8.5 L/100km (33 mpg UK). City driving may see 10–12 L/100km (28–23 mpg), while highway cruising can achieve ~7.0 L/100km (40 mpg). Real-world figures depend on driving style and vehicle condition.
Yes. The M57 series is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, causing severe internal damage. Chain maintenance and tensioner inspection are critical, especially given the engine's torque characteristics and long service intervals.
BMW specifies 10W-40 synthetic oil meeting BMW Longlife-98 spec. Change intervals should not exceed 15,000 km. Proper oil ensures adequate protection for camshafts, lifters, and the timing chain, especially under sustained load and high-temperature operation.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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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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