The Audi CCTA is a 1,798 cc, inline — four turbocharged petrol engine produced between 2010 and 2016. It features direct fuel injection (FSI), variable valve timing (VVT), and a single — scroll turbocharger. In standard tune, it produces 125 kW (170 PS) and 250 Nm of torque, serving as a mid — range powertrain for Audi’s transverse — platform vehicles.
Fitted to models such as the A3 (8V), A4 (B8), and Q3 (8U), the CCTA engine was engineered for responsive performance and fuel ef…
All CCTA engines comply with Euro 5 emissions standards .
The Audi CCTA is a 1,798 cc inline-four turbocharged petrol engine engineered for transverse-mounted applications (2010–2016). It combines FSI direct injection with turbocharging to deliver responsive mid-range power and improved efficiency. Designed to meet Euro 5 emissions standards, it balances sporty character with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,798 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (single-scroll) | |
Bore × stroke | 82.5 mm × 84.5 mm | |
Power output | 125 kW (170 PS) @ 5,100–6,000 rpm | |
Torque | 250 Nm @ 1,500–4,500 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 | Single-scroll turbo (Honeywell GT1549V) | |
Timing system | Chain-driven (non-interference design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 138 kg |
The Audi CCTA was used across Audi's 8V/8U platforms with transverse mounting. This engine received platform-specific adaptations-shortened exhaust manifolds in the A3 (8V) and revised cooling routing in the Q3 (8U)-and from 2013 the facelifted A3 8V LCI models adopted updated turbo calibration, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
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 CCTA is generally robust when maintained properly, but early models (2010–2012) are prone to turbo wastegate actuator failures. Later revisions (post-2013) show improved durability. Regular oil changes with Audi Longlife-01 (5W-40) and use of high-quality petrol (EN 228) significantly extend engine life. Well-maintained units can exceed 200,000 km reliably.
The most documented issues are turbo wastegate actuator binding (especially pre-2013), intake valve carbon buildup, HPFP wear, and coolant leaks from the water pump. These are covered in Audi service bulletins and field reports. Proper maintenance and driving habits are key to avoiding these failures.
The CCTA 1.8 TFSI 170 PS engine was used in the A3 (8V), A4 (B8), and Q3 (8U) from 2010 to 2016. It was phased out in favor of newer EA888 Gen 3 engines. All applications are transversely mounted with minor platform-specific tuning and ancillary layouts.
Aftermarket ECU tuning is common on the CCTA 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.
Good. In an A3 1.8 TFSI (8V), combined consumption is ~6.5 L/100 km (~43 mpg UK). Highway runs can achieve ~5.8 L/100 km (~49 mpg). Real-world mixed driving typically yields 38–43 mpg UK. Economy remains strong even with age if DPF and EGR systems are functioning properly.
No. The CCTA uses a non-interference valvetrain design. If the timing chain fails, piston-to-valve contact is unlikely, reducing risk of catastrophic damage. However, chain replacement is still recommended at 200,000 km or if excessive wear is detected.
Audi specifies 5W-40 synthetic oil meeting Longlife-01 (or newer) standards. Change intervals should not exceed 15,000 km or one year. Using correct oil ensures proper lubrication of the turbo and HPFP, and helps prevent sludge and carbon buildup in the intake system.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.