The Audi DKAB is a 1,984 cc, inline-four turbocharged petrol engine produced between 2022 and 2023. It belongs to the EA888 Gen 4 engine family, featuring gasoline particulate filter (GPF), direct fuel injection (FSI), variable valve timing (VVT), and an integrated exhaust manifold. In standard configuration, it delivers 169 kW (230 PS) and 370 Nm of torque, meeting stringent Euro 6d emissions standards with real-driving emissions (RDE) certification.
Fitted to models including the 8Y A3, B9.5 A4, and FY Q3, the DKAB was engineered for sporty performance and urban efficiency in premium compact and mid-size applications. It supports 48V mild-hybrid (MHEV) technology, enabling torque-fill during acceleration and improved start-stop operation. The combustion system is optimized for low particulate emissions, critical for GPF longevity and compliance in European low-emission zones.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) actuator follower, highlighted in Audi Technical Service Bulletin 61-18-01. This wear, linked to lubrication breakdown under high thermal load, can lead to fuel pressure instability and driveability issues. Audi recommends adherence to 15,000 km oil service intervals and use of VW 502 00-compliant 5W-30 oil to maintain fuel system integrity and turbocharger longevity.
All DKAB engines comply with Euro 6d (RDE) standards (VCA UK Type Approval #VCA/EMS/9621), including real-driving emissions certification.
The Audi DKAB is a 1,984 cc inline-four turbocharged petrol engine developed for high-performance compact and mid-size Audi platforms (2022–2023). It integrates gasoline particulate filter (GPF) technology and 48V mild-hybrid support to meet Euro 6d emissions standards. Designed for responsive performance and urban efficiency, it balances modern emissions control with driver engagement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 169 kW (230 PS) @ 5,000–6,500 rpm | |
| Torque | 370 Nm @ 1,600–4,300 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) with GPF | |
| Emissions standard | Euro 6d (including RDE) | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water-cooled with integrated exhaust manifold | |
| Turbocharger | Single-scroll turbo with electric wastegate control (Honeywell) | |
| Timing system | Chain-driven (double-row primary, toothed belt secondary) | |
| Oil type | VW 502 00 / 505 00 (SAE 5W-30) | |
| Dry weight | 144 kg |
The GPF-equipped fuel system provides excellent emissions control but requires strict adherence to oil change intervals to prevent HPFP actuator wear. Use of VW 502 00-compliant 5W-30 oil is essential for fuel pump and turbo longevity. Extended oil intervals beyond 15,000 km increase risk of premature HPFP failure. The 48V MHEV system improves throttle response during acceleration but requires proper battery conditioning and ECU calibration. The electric wastegate enables precise boost control but is sensitive to carbon buildup; periodic actuator cleaning is advised per Audi SIB 61-18-01. Coolant quality and system integrity are critical due to high thermal load from the integrated exhaust manifold.
Oil Specs: Requires VW 502 00 / 505 00 specification (Audi SIB 61-18-01). Compatible with ACEA A1/B1 and A5/B5.
Emissions: All DKAB engines meet Euro 6d (RDE) standards (VCA Type Approval #VCA/EMS/9621).
Power Ratings: Measured under SAE J1349 standards. Output consistent across fuel qualities meeting EN 228.
Audi Technical Information System (TIS): Docs A32088, A32110, A32145, SIB 61-18-01
VCA Type Approval Database (VCA/EMS/9621)
SAE International: J1349 Engine Power Certification Standards
The Audi DKAB was used across Audi's 8Y/B9.5 platforms with longitudinal mounting and shared with Volkswagen Group brands under modular engine strategy. This engine received platform-specific adaptations-integrated 48V MHEV in A4 and revised GPF housing in Q3-and from 2022 the facelifted 8Y A3 adopted updated ECU mapping for improved cold-start emissions, creating software compatibility limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front of the cylinder block near the timing cover (Audi TIS A32090). The 7th VIN digit indicates engine family ('D' for DKAB). Pre-2023 models have a silver intake manifold with black plastic cam covers; post-2023 units use gloss black intake trims. Critical differentiation from EA888 Gen 3: DKAB features gasoline particulate filter (GPF), 48V MHEV integration in select models, and electric wastegate control. Service parts require model-year verification - ECU and turbo assemblies are not interchangeable between pre- and post-facelift variants due to emissions calibration differences (Audi SIB 61-18-01).
The DKAB's primary reliability risk is high-pressure fuel pump (HPFP) actuator wear, with elevated incidence in vehicles with extended oil change intervals. Internal Audi field reports from 2023 indicated a notable number of pre-2023 units requiring HPFP replacement before 90,000 km, while UK DVSA MOT data shows increased fuel system-related failures in high-mileage examples. Short journeys and low oil change frequency exacerbate wear, making oil quality and maintenance adherence critical.
Analysis derived from Audi technical bulletins (2022-2023) and UK DVSA failure statistics (2022-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI DKAB.
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