The Audi CAVG is a 1,968 cc, inline — four turbocharged diesel engine produced between 2015 and 2020. It belongs to the EA288 engine family, featuring a compacted graphite iron (CGI) block, aluminium head, and common rail direct injection. Delivering 110 kW (150 PS) and 340 Nm of torque, it was engineered for transverse applications in compact and mid — size vehicles with emphasis on efficiency and low — end drivability.
Fitted to models such as the Audi A3 (8V), Q2, and A4 (B9)…
Production years 2015–2020 meet Euro 6b standards .
The Audi CAVG is a 1,968 cc inline-four turbocharged diesel engine engineered for compact and mid-size models (2015–2020). It combines common rail direct injection with a chain-driven DOHC valvetrain to deliver responsive torque and improved efficiency. Designed to meet Euro 6b emissions, it balances real-world performance with environmental compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,250–4,200 rpm | |
Torque | 340 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CRS 2-20 common rail (up to 2,000 bar) | |
Emissions standard | Euro 6b | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | IHI IS19 turbocharger with variable geometry turbine (VGT) | |
Timing system | Roller chain (lifetime design, inspection recommended at 180,000 km) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Audi CAVG was used across Audi's A3/Q2/A4 platform with transverse mounting. This engine received platform-specific adaptations-revised intake manifolds and ECU tuning-and from 2018 the updated HPFP system per SIB 01 17 19, creating service part 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.
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The Audi CAVG offers strong low-end torque and good fuel economy, but pre-2018 models are prone to high-pressure fuel pump failure if operated on low-quality diesel or without regular maintenance. Later revisions improved HPFP durability. When maintained properly—with correct 5W-30 oil, quality diesel (EN 590), and periodic EGR/DPF cleaning—it can be reliable. Neglecting service intervals increases risk of premature wear.
Key issues include high-pressure fuel pump wear leading to misfires, VGT turbo actuator sticking, EGR and intake carbon buildup, and AdBlue dosing system faults. These are documented in Audi service bulletins. Regular highway driving, use of quality fuel and oil, and timely servicing help mitigate most risks.
The CAVG engine was used in the Audi A3 (8V), Q2 (GA), and A4 (B9) from 2015 to 2020, specifically in the 2.0 TDI variant. It was also shared with SEAT Leon (5F) and Škoda Octavia (5E) models in the same period. All applications meet Euro 6b emissions standards.
Aftermarket ECU tuning is common on the CAVD 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 the Audi A3 2.0 TDI, combined fuel economy is approximately 4.2 L/100km (67 mpg UK). Real-world consumption ranges from 4.8 L/100km (58 mpg) in city driving to 3.9 L/100km (72 mpg) on highways. Driving style and transmission type significantly influence actual figures.
Yes, the CAVG is an interference engine. If the timing chain fails, the pistons can collide with open valves, causing severe internal damage. Immediate attention to chain noise or warning lights is essential. Always follow Audi's recommended inspection interval of 180,000 km for chain and guide condition.
The CAVG requires VW 507 00 or 505 00 specification oil, typically SAE 5W-30. Use of correct oil ensures turbocharger, timing chain, and high-pressure fuel pump longevity. Change oil every 15,000 km or annually to maintain engine health and prevent sludge buildup.
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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