The Audi CAEB is a 1,984 cc, inline — four turbocharged petrol engine produced between 2015 and 2020. It belongs to the EA888 Gen 3 engine family, featuring aluminium construction, direct fuel injection (TSI), and a chain — driven valvetrain. Delivering 140 kW (190 PS) and 320 Nm of torque, it was engineered for compact and mid — size applications with enhanced thermal efficiency and reduced emissions.
Fitted to models such as the Audi A3 2.0 TFSI and Audi S3 (8V), the CAEB engi…
Production years 2015–2020 meet Euro 6b standards .
The Audi CAEB is a 1,984 cc inline-four turbocharged petrol engine engineered for compact and mid-size models (2015–2020). It combines TSI direct injection with a chain-driven DOHC valvetrain to deliver responsive performance and improved efficiency. Designed to meet Euro 6b emissions, it balances power delivery with environmental compliance.
| 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) @ 4,200–6,000 rpm | |
Torque | 320 Nm @ 1,500–4,200 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 200 bar) | |
Emissions standard | Euro 6b | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled | |
Turbocharger | IHI IS20 turbocharger with electronic wastegate | |
Timing system | Roller chain (lifetime design, inspection recommended at 180,000 km) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 115 kg |
The Audi CAEB was used across Audi's A3/S3 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 18, 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 CAEB offers strong performance and efficiency, but pre-2018 models are prone to high-pressure fuel pump failure if operated on low-quality fuel or without regular maintenance. Later revisions improved HPFP durability. When maintained properly—with correct 5W-30 oil, high-octane fuel, and periodic GPF regeneration—it can be reliable. Neglecting fuel quality or oil changes increases risk of premature wear.
Key issues include high-pressure fuel pump wear leading to misfires, turbo wastegate actuator sticking, intake valve carbon buildup, and gasoline particulate filter (GPF) clogging. These are documented in Audi service bulletins. Regular highway driving, use of quality fuel and oil, and timely servicing help mitigate most risks.
The CAEB engine was used in the Audi A3 (8V) and S3 (8V) from 2015 to 2020, specifically in the 2.0 TFSI 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 CAEB 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 TFSI, combined fuel economy is approximately 6.1 L/100km (46 mpg UK). Real-world consumption ranges from 7.2 L/100km (39 mpg) in city driving to 5.3 L/100km (53 mpg) on highways. Driving style and transmission type significantly influence actual figures.
Yes, the CAEB 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 CAEB requires VW 502 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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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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