The Audi CDAA is a 1,395 cc, inline — four turbocharged petrol engine produced between 2010 and 2016. It features direct fuel injection (TSI), variable valve timing (VVT), and a single — scroll turbocharger. In standard tune, it delivers 81 kW (110 PS) at 5,000 rpm and 200 Nm of torque from 1,500 to 3,900 rpm, making it a responsive and efficient unit for urban and suburban driving.
Fitted to models such as the A1 (8X), A3 (8V), and SEAT Ibiza FR, the CDAA was engineered for compact…
All CDAA engines meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Audi CDAA is a 1,395 cc inline-four turbocharged petrol engine designed for compact and subcompact models (2010–2016). It combines TSI direct injection with a single-scroll turbocharger to deliver strong low-end torque and responsive city driving performance. Engineered to meet Euro 5 emissions standards, it balances real-world efficiency with drivability in lightweight Audi platforms.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,395 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (single-scroll) | |
Bore × stroke | 74.5 mm × 80.0 mm | |
Power output | 81 kW (110 PS) @ 5,000 rpm | |
Torque | 200 Nm @ 1,500–3,900 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 150 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | IHI IS20 single-scroll turbo | |
Timing system | Timing chain (front-mounted) | |
Oil type | Audi Longlife-01 (5W-40) | |
Dry weight | 97 kg |
The Audi CDAA was used across Audi's 8X/8V platforms with transverse mounting and shared architecture with Volkswagen and SEAT. This engine received platform-specific adaptations-shorter intake manifolds in the A1 and revised ECU tuning in the A3-and from 2013 the facelifted A3 8V adopted updated tensioner geometry, creating service part incompatibility. Partnerships enabled Volkswagen's 1.4 TSI and SEAT's 1.4 TSI to use identical core architecture. All adaptations are documented in OEM technical bulletins.
The CDAA's primary reliability risk is timing chain tensioner wear in early-build engines, with elevated incidence in short-trip urban use. Internal Audi service reports from 2014 indicated a notable number of tensioner failures before 100,000 km in vehicles consistently used for city driving, while UK DVSA records show secondary air injection faults contributing to emissions test failures in high-mileage A1s. Cold-start cycles and poor fuel quality increase stress on the chain and injection system, making oil discipline and fuel quality adherence critical.
Analysis derived from Audi technical bulletins (2010–2016) and UK DVSA failure statistics (2013–2020). 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 CDAA is fundamentally robust with good efficiency and responsiveness, but long-term reliability depends on maintenance. Early models (2010–2012) are prone to timing chain tensioner wear if oil changes were delayed. Post-2013 revisions and adherence to service schedules improve longevity. Using premium fuel (RON 95+) and Audi Longlife-01 oil at 15,000 km intervals is essential for durability.
Key issues include timing chain tensioner wear in early units, intake valve carbon buildup due to direct injection, turbo wastegate sticking from carbon, and oil leaks from ageing gaskets. These are documented in Audi service bulletins, with tensioner and intake cleaning being the most frequent repair items.
The CDAA 1.4 TFSI 110 PS was used in the Audi A1 (8X, 2010–2016) and A3 (8V, 2012–2016). It was also shared with Volkswagen (Polo) and SEAT (Ibiza) under the same architecture. All models meet Euro 5 emissions standards and use transverse front-wheel-drive layouts.
Yes, the CDAA responds well to ECU remapping. Stage 1 tunes typically achieve 140–150 PS safely, as the stock turbo and internals handle increased torque. Supporting mods like intercooler upgrade and exhaust enhance reliability. However, tuning increases stress on the turbo and fuel system, so regular maintenance becomes even more critical.
Excellent for a turbo petrol engine. In an A3 8V 1.4 TFSI, real-world consumption is ~7.2 L/100km (city), ~4.8 L/100km (highway), achieving ~50 mpg UK combined. Smaller A1 models often exceed 55 mpg UK on motorways. Expect 45–55 mpg UK in mixed driving with a well-maintained engine and premium fuel.
Yes, the CDAA is an interference engine. If the timing chain fails or jumps, pistons will collide with open valves, resulting in severe internal damage. This makes adherence to the 120,000 km inspection interval and use of correct oil critical. Any rattling at cold start should prompt immediate inspection.
Audi specifies 5W-40 synthetic oil meeting Longlife-01 standard. This formulation ensures proper lubrication of the timing chain and turbocharger. Oil must be changed every 15,000 km or annually to prevent sludge buildup and maintain fuel system health. Using non-compliant oil increases failure risk.
Comprehensive technical documentation and regulatory references
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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)
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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
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