The Audi DNWA is a 1,968 cc, inline — four turbo — diesel engine produced between 2022 and 2025. Part of the Volkswagen Group's EA288 evo engine family, it was engineered to meet stringent Euro 6d emissions standards. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), it delivers 120 kW (163 PS) and 360 Nm of torque, with optimized combustion efficiency and reduced particulate emissions.
Fitted to models in…
All production years (2022–2025) comply with Euro 6d standards depending on market .
The Audi DNWA is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2022–2025). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-RPM torque and efficient highway cruising. Designed to meet Euro 6d emissions standards, it balances real-world economy with stringent environmental compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 120 kW (163 PS) @ 3,500–4,000 rpm | |
Torque | 360 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CRS 2-20 common-rail (up to 2,000 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1544V) | |
Timing system | Chain-driven (long-life, non-serviceable) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Audi DNWA was used across Audi's B9/F5/FY platforms with longitudinal mounting in quattro applications and transverse in front-wheel-drive variants. This engine received platform-specific adaptations—reinforced mounts in the Q5 FY and revised EGR routing in the A4 B9—and from 2024 the updated A5 F5.5 facelift integrated enhanced SCR control logic, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The DNWA's primary reliability risk is EGR valve coking under urban driving conditions, with elevated incidence in city-operated vehicles. Internal Audi quality reports from 2024 indicated a significant number of pre-2024 units required EGR valve cleaning or replacement before 90,000 km, while VCA MOT records show increased boost-related failures linked to airflow restriction. Frequent short trips and low-load operation increase carbon buildup, making regular highway use critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The DNWA is generally robust when properly maintained, especially post-2024 models with updated EGR valve design. Key risks include EGR coking in urban environments and DPF clogging from short trips. Regular highway driving, use of EN 590 diesel, and adherence to oil change intervals (15,000 km) with Audi Longlife-05 oil are essential for long-term durability.
Key issues include EGR valve coking due to urban driving, DPF clogging from short trips, turbo actuator sticking, and high-pressure fuel pump wear. These are documented in Audi service bulletins, particularly SIB 2023-08-10 for EGR failures. Proper maintenance and driving habits significantly reduce failure risks.
The DNWA was used in the Audi A4 (B9, 45 TDI), A5 (F5, 45 TDI), Q5 (FY, 45 TDI), and A6 (C8, 45 TDI) from 2022 to 2025. It replaced earlier EA288 variants to meet Euro 6d standards. All applications feature either front-wheel drive or quattro all-wheel drive depending on model.
Aftermarket ECU tuning is common on the DNWA platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In real-world conditions, the DNWA achieves approximately 5.2 L/100km (city), 4.1 L/100km (highway), and 4.6 L/100km combined (~61 mpg UK). The A4 45 TDI and Q5 45 TDI are particularly efficient. Economy depends on driving style, with consistent highway use yielding best results.
Yes, the DNWA is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can occur, resulting in severe internal damage. Although the chain is designed for the engine's lifetime, any unusual noise from the timing cover should be investigated immediately to prevent catastrophic failure.
Audi specifies SAE 5W-30 oil meeting Longlife-05 standards. This low-ash formulation is critical for protecting the turbocharger, EGR system, and DPF. Oil changes should be performed every 15,000 km or annually, using only VW 507 00-compliant oils to ensure compatibility with emissions components.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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