The BMW N47 D20 C is a 1,995 cc, inline — four turbo — diesel engine produced between 2011 and 2016. It features DOHC, 16 — valve configuration, and a single variable — geometry turbocharger (VGT), delivering 135 kW (184 PS) and 380 Nm of torque. Its high — pressure common — rail system and piezo injectors enable precise fuel delivery, supporting strong low — end pulling power and refined operation.
Fitted to models such as the F30 3 Series, F31 3 Series Touring, and F01 5 Series, th…
All production years 2011–2016 meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/5678).
The BMW N47 D20 C is a 1,995 cc inline-four turbo-diesel engineered for executive and compact luxury platforms (2011–2016). It combines high-pressure common-rail direct injection with a single variable-geometry turbocharger to deliver robust low-RPM torque and quiet operation. Designed to meet Euro 5 standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,995 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 135 kW (184 PS) @ 4,000 rpm | |
Torque | 380 Nm @ 1,750–2,750 rpm | |
Fuel system | Bosch CP3.1 common-rail (up to 1,800 bar), piezo injectors | |
Emissions standard | Euro 5 | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (BorgWarner) | |
Timing system | Double-row timing chain | |
Oil type | BMW Longlife-04 (SAE 5W-30) | |
Dry weight | 158 kg |
The BMW N47 D20 C was used across BMW's F30, F31, and F01 platforms with longitudinal mounting. This engine received platform-specific adaptations-integrated SCR on the F01 and revised intake manifolds on the F30-and from 2015 the facelifted F30 LCI adopted the B47D20 variant with updated engine management, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The N47 D20 C's primary reliability risk is high-pressure fuel pump degradation on pre-2013 builds, with elevated incidence in regions with lower fuel quality. Internal BMW quality reports from 2012 indicated a significant number of CP3.1 pump failures before 180,000 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 (2011–2016) and UK DVSA failure statistics (2017–2022). 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 N47 D20 C offers strong torque and solid engineering, but pre-2013 models with the CP3.1 fuel pump are prone to premature wear. Later revisions with improved filtration significantly improve fuel system longevity. Regular oil changes, use of high-quality diesel (EN 590), and prompt attention to fuel pressure warnings are essential for reliability.
Key issues include high-pressure fuel pump degradation (especially pre-2013), 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 N47 D20 C was used in the F30 3 Series 320d (2011–2015), F31 3 Series Touring 320d (2012–2015), and F01 5 Series 520d (2011–2013). It was replaced by the B47D20 in 2015 with updated engine management and modular architecture. No cross-manufacturer applications are documented for this variant.
Yes. The N47 D20 C responds well to tuning. Stage 1 ECU remaps can gain ~25–40 kW safely, leveraging the robust inline-four 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 F30 320d, combined consumption is ~5.2 L/100km (54 mpg UK). City driving may see 6–7 L/100km (47–40 mpg), while highway cruising can achieve ~4.5 L/100km (63 mpg). Real-world figures depend on driving style and vehicle condition.
Yes. The N47 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 5W-30 synthetic oil meeting BMW Longlife-04 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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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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