The Audi CNVA is a 1,968 cc, inline — four turbo — diesel engine produced between 2021 and 2024. It belongs to the Volkswagen Group's EA288 evo engine family, featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC). In standard tune it delivers 110 kW (150 PS) and 360 Nm of torque, offering refined drivability and improved emissions performance across transverse — mounted platforms.
Fitted to models such as the A3…
All production years (2021–2024) meet Euro 6d standards .
The Audi CNVA is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size transverse applications (2021–2024). It combines common-rail direct injection with a variable geometry turbocharger to deliver consistent torque and improved emissions performance. Designed to meet Euro 6d standards, it balances drivability with regulatory 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 | 110 kW (150 PS) @ 3,500–4,000 rpm | |
Torque | 360 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CRS 2.0 common-rail (up to 1,800 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1749V) | |
Timing system | Timing belt (interval: 180,000 km or 10 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 144 kg |
The Audi CNVA was used across Audi's 8Y, B9, and F3 platforms with transverse mounting. This engine received platform-specific adaptations—reinforced engine mounts in the Q3 and revised cooling layouts in the A4—and from 2023 the facelifted A3 8Y adopted updated EGR and DPF calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 CNVA is generally robust when maintained properly, but pre-2023 models are prone to high-pressure fuel pump (HPFP) failure. Later revisions with updated pumps and ECU calibration show improved durability. Regular DPF regeneration, use of correct oil (VW 504 00/507 00), and adherence to timing belt intervals (180,000 km) are essential for long-term reliability.
Key issues include HPFP degradation, DPF clogging due to short trips, timing belt degradation, and turbo actuator sticking. These are documented in Audi service bulletins and field reports. Fuel starvation and regeneration faults are common in motorway-driven examples with high-load operation.
The CNVA 2.0 TDI 150 PS was used in the A3 (8Y), A4 (B9), and Q3 (F3) from 2021 to 2024. It was phased out in favour of newer EA288 evo variants post-2024. All models meet Euro 6d emissions standards.
Aftermarket ECU tuning is common on the CNVA 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 driving, expect 5.0–5.8 L/100km (49–58 mpg UK) in mixed conditions. Highway driving can achieve ~4.5 L/100km (62 mpg UK). Fuel economy depends on driving style, DPF regeneration frequency, and transmission type.
Yes, the CNVA is an interference engine. If the timing belt fails, pistons can strike open valves, causing severe internal damage. This makes strict adherence to the 180,000 km replacement interval absolutely critical.
Audi specifies VW 504 00 / 507 00 (SAE 5W-30) oil. This low-ash formulation protects the DPF and EGR system. Oil must be changed every 15,000–20,000 km or annually to maintain engine and emissions system longevity.
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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