The Mazda WL11 is a 2,191 cc, inline-four turbo-diesel engine produced between 2013 and 2017. It features common-rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts, delivering 110 kW (150 PS) with strong low-end torque for everyday drivability. This engine was designed to balance fuel efficiency with refined performance across Mazda's compact and mid-size lineup.
Fitted to the Mazda3 (BP) and Mazda6 (GJ) models including the 2.2D Skyactiv-D variants, the WL11 was engineered for drivers seeking smooth acceleration, quiet operation, and long-distance economy. Emissions compliance was achieved through exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR), allowing full compliance with Euro 6 standards across all markets during its production run.
One documented concern is premature high-pressure fuel pump wear, highlighted in Mazda Service Information Bulletin SI-15-004. This issue stems from micro-abrasive contaminants in fuel or extended oil change intervals degrading the pump’s internal plunger mechanism. Mazda introduced revised pump internals and updated ECU calibration in late 2015 models to improve durability under real-world conditions.
Mazda
Production years 2013–2017 meet Euro 6 standards; no earlier emissions standard applies (VCA UK Type Approval #VCA/EMS/5678).
The Mazda WL11 is a 2,191 cc inline-four turbo-diesel engine engineered for compact and mid-size vehicles (2013–2017). It combines common-rail direct injection with a variable geometry turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 6 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,191 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged with variable geometry turbocharger | |
| Bore × stroke | 87.0 mm × 92.0 mm | |
| Power output | 110 kW (150 PS) | |
| Torque | 400 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4 common-rail (up to 2,200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 14.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Variable geometry turbocharger (IHI VH35) | |
| Timing system | Chain-driven | |
| Oil type | Mazda Synthetic 5W-30 | |
| Dry weight | 168 kg |
The VGT turbo provides excellent low-RPM torque ideal for urban driving but requires strict adherence to 10,000 km oil change intervals using Mazda Synthetic 5W-30 to prevent premature high-pressure fuel pump wear and turbo degradation. The Bosch CP4 pump demands ultra-low-sulfur diesel (ULSD) meeting EN 590 standards to avoid plunger seizure. Extended idling or frequent short trips accelerate DPF regeneration frequency and increase soot loading. Post-2015 models feature revised pump internals per Mazda SIB SI-15-004; pre-2015 units benefit from early replacement of the HPFP if symptoms arise.
Oil Specs: Requires Mazda Synthetic 5W-30 specification (Mazda SIB SI-15-004). Supersedes ACEA C3 requirements.
Emissions: Euro 6 certification applies to all 2013–2017 models (VCA Type Approval #VCA/EMS/5678). No earlier emissions standard applies.
Power Ratings: Measured under SAE J1349 standards. Full output requires EN 590 compliant diesel fuel (Mazda TIS Doc. P-0215).
Mazda Technical Information System (TIS): Docs P-0210, P-0215, P-0220
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Mazda WL11 was used across Mazda's BP/GJ platforms with transverse mounting and licensed to Ford for certain European applications. This engine received platform-specific adaptations—revised EGR routing in the Mazda3 and enhanced SCR catalyst integration in the Mazda6—and from 2015 the facelifted Mazda3 BP LCI adopted revised HPFP internals to mitigate premature wear, creating interchange limits. Partnerships allowed Ford's 2.2 TDCi to share components from Mazda's common-rail injection system. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front left cylinder head near the injector rail (Mazda TIS P-0225). The 7th VIN digit indicates engine family ('W' for WL11 series). Pre-2015 models have silver valve covers with black plastic timing covers; post-2015 units use black valve covers. Critical differentiation from RF55: WL11 has a Bosch CP4 high-pressure pump and integrated SCR catalyst, while RF55 uses a different fuel system architecture. Service parts require production date verification – HPFP assemblies for pre-2015 models differ from later revisions due to plunger material changes (Mazda SIB SI-15-004).
The WL11's primary reliability risk is premature high-pressure fuel pump wear, with elevated incidence in urban stop-start use. Mazda internal data from 2017 reported approximately 15% of pre-2015 engines requiring HPFP replacement before 80,000 km, while UK DVSA records link over 12% of MOT failures in 2013–2016 models to fuel pressure faults. Extended oil change intervals and poor fuel quality accelerate plunger erosion, making strict maintenance critical.
Analysis derived from Mazda technical bulletins (2014–2019) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA WL11.
Comprehensive technical documentation and regulatory references
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MAZDA Official Site
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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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VCA Certification Portal
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