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 was engineered for refined motorway cruising and load-carrying capability. Emissions compliance was achieved through exhaust gas recirculation (EGR) and oxidation catalyst technology, enabling Euro 3 standard certification across all production years.
One documented concern is high-pressure fuel pump (HPFP) wear, particularly on units produced before 2001, due to sensitivity to fuel quality and inadequate lubrication. This issue, referenced in BMW Service Information Bulletin 13 01 07, led to drivability complaints and hard-start conditions. In 2001, BMW introduced a revised Bosch HPFP with improved internal coatings and tighter tolerances to enhance longevity.
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 single VGT turbo provides strong low-RPM torque ideal for towing and highway cruising but requires strict adherence to 15,000 km oil change intervals to maintain chain and turbo longevity. BMW Longlife-98 (10W-40) oil is critical due to its high-temperature stability and protection for the VP44/CP1 fuel systems. Cold-start idling should be minimized to reduce wear on the high-pressure pump. Ultra-low-sulfur diesel (EN 590) is mandatory to prevent fuel system corrosion and injector coking. Pre-2001 models should have the Bosch CP1 upgrade per BMW SIB 13 01 07 if experiencing startability or power loss issues. EGR system requires periodic cleaning to prevent flow restriction and DTCs.
Oil Specs: Requires BMW Longlife-98 (10W-40) specification (BMW SIB 11 04 98). Supersedes ACEA B3 requirements.
Emissions: Euro 3 certification applies to all production years (1998–2004) (VCA Type Approval #VCA/EMS/3456).
Power Ratings: Measured under DIN 70020 standards. Output consistent across fuel qualities meeting EN 590.
BMW Technical Information System (TIS): Docs A29800, A29910, SIB 13 01 07
VCA Type Approval Database (VCA/EMS/3456)
DIN Deutsches Institut für Normung: DIN 70020 Engine Power Measurement
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.
Locate the engine code stamped vertically on the right-side engine block near the starter motor (BMW TIS A29990). The 7th VIN digit indicates engine family ('D' for diesel M57 series). Pre-2001 models have silver valve covers with "M57" branding and VP44 fuel pump; post-2001 units feature "M57 D30" casting and CP1 common-rail system. Critical differentiation from M57TU: Original M57 D30 uses VP44 or early CP1 pump with analog throttle, while M57TU features CP2 pump and drive-by-wire. Service parts require production date verification - high-pressure pumps before 06/2001 are incompatible with later units per BMW SIB 13 01 07.
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.
Find answers to most commonly asked questions about BMW M57D30-306D1.
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