The Audi DETA is a 1,984 cc, inline — four turbocharged petrol engine produced between 2016 and 2021. It belongs to the Volkswagen Group's EA888 Gen 3B engine family, designed for transverse and longitudinal applications across compact and mid — size platforms. Featuring direct fuel injection (TSI), variable valve timing (VVT), and dual overhead camshafts (DOHC), it delivers 140 kW (190 PS) in standard tune, with peak torque of 320 Nm available from 1,500 rpm.
Fitted to mo…
Production years 2016–2018 meet Euro 6c standards; 2019–2021 models comply with Euro 6d-TEMP depending on market .
The Audi DETA is a 1,984 cc inline-four turbocharged petrol engineered for compact and mid-size models (2016-2021). It combines direct fuel injection with a single turbocharger to deliver responsive low-RPM performance and improved fuel efficiency. Designed to meet Euro 6c and 6d-TEMP standards, it integrates a gasoline particulate filter (GPF) for clean operation.
| 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 | 140 kW (190 PS) @ 3,800–6,000 rpm | |
Torque | 320 Nm @ 1,500–3,800 rpm | |
Fuel system | Bosch HDP5 high-pressure direct injection (up to 2,000 bar) | |
Emissions standard | Euro 6c (pre-2019); Euro 6d-TEMP (2019–2021) | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single turbocharger with water-cooled housing (BorgWarner) | |
Timing system | Roller chain (long-life design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 135 kg |
The Audi DETA was used across Audi's 8V/B9/8U platforms with transverse and longitudinal mounting and shared within the Volkswagen Group for transverse applications. This engine received platform-specific adaptations-integrated GPF in 8V and revised HPFP routing in B9-and from 2019 the updated B9 facelift adopted Euro 6d-TEMP-compliant tuning with enhanced GPF regeneration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The DETA is generally robust with proper maintenance. Early models (pre-2018) are prone to high-pressure fuel pump wear, especially with poor fuel quality. Post-2018 revisions improved HPFP durability. Using correct oil (VW 508 00) and regular longer runs help prevent GPF and turbo issues. With adherence to service schedules, 180,000 km+ longevity is achievable.
The most frequent issues are high-pressure fuel pump wear, GPF clogging, timing chain tensioner wear, and turbo oil coking. These are documented in Audi service bulletins. Fuel pump issues stem from lubrication and fuel quality; GPF faults often result from short-trip driving. Regular inspection and correct fluid use mitigate most risks.
The DETA was used in the Audi A3 (8V), A4 (B9), and Q3 (8U) from 2016 to 2021. It appears as 35 TFSI in all variants. All models feature direct injection, turbocharging, and GPF. It is not used in S or RS models. The engine was phased out in favour of EA888 Gen 4 with improved efficiency and emissions control.
Aftermarket ECU tuning is common on the DETA 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, expect 6.8–7.8 L/100km (41–30 mpg UK) depending on model and driving style. The A3 35 TFSI achieves up to 45 mpg UK on highways. Combined figures range from 38–44 mpg UK. GPF regeneration slightly reduces efficiency in city driving. Use of 95 RON fuel is required for optimal performance.
Yes. The DETA is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal damage. While the roller chain is designed for long life, any signs of chain wear or tensioner failure must be addressed immediately to prevent catastrophic engine failure.
The DETA requires VW 508 00 or 509 00 specification oil (typically SAE 0W-20). This low-viscosity formulation is critical for high-pressure fuel pump lubrication and fuel efficiency. Oil changes should be performed every 15,000 km or annually. Using non-compliant oil can lead to HPFP failure and increased wear.
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