The Audi CASA is a 1,798 cc, inline — four turbocharged petrol engine produced between 2013 and 2019. It belongs to the EA888 Gen 3 family and features TFSI (Turbo Fuel Stratified Injection), DOHC valvetrain, and variable valve timing on both intake and exhaust camshafts. In standard tune, it delivers 132 kW (180 PS) and 250 Nm of torque, offering refined performance and improved efficiency over previous generations.
Fitted to models such as the 8V A3, 8S S3, and B8.5 A4, the C…
Production years 2013–2015 meet Euro 6a standards; 2016–2019 models comply with Euro 6c depending on market (VCA UK Type Approval #VCA/EMS/7890).
The Audi CASA is a 1,798 cc inline-four turbocharged petrol engine developed for compact and mid-size Audi applications (2013–2019). As part of the EA888 Gen 3 series, it features dual injection (direct + port), integrated exhaust manifold, and advanced thermal control. Designed to meet Euro 6a–6c standards, it balances strong mid-range performance with improved fuel efficiency and lower emissions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,798 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.5 mm × 84.5 mm | |
Power output | 132 kW (180 PS) @ 4,500–6,200 rpm | |
Torque | 250 Nm @ 1,450–4,500 rpm | |
Fuel system | Bosch HDEV6 dual injection (direct + port, up to 200 bar) | |
Emissions standard | Euro 6a (pre-2016); Euro 6c (2016–2019) | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled with integrated exhaust manifold and dual-circuit thermostat | |
Turbocharger | Single turbocharger with electronically controlled wastegate (Garrett GT1749V) | |
Timing system | Chain (revised guides/tensioner from 2016) | |
Oil type | Audi Longlife-04 (SAE 5W-40) | |
Dry weight | 142 kg |
The Audi CASA was used across Audi's 8V/8S/B8.5 platforms with transverse mounting and shared with Seat and Skoda under VW Group modular strategy. This engine received platform-specific adaptations-tighter intake tuning in the S3 and revised cooling in the A4-and from 2016 the facelifted A3 Sportback adopted updated fuel pump cooling, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CASA's primary reliability risk is high-pressure fuel pump degradation on early builds, with elevated incidence in hot climates and aggressive driving. Internal Audi quality reports from 2016 indicated a notable share of pre-2016 engines requiring HPFP replacement before 100,000 km, while UK DVSA records link a significant portion of fuel system-related MOT failures to pump performance in high-mileage vehicles. Sustained high-RPM cycles and poor fuel quality increase pump stress, making fuel quality and cooling system maintenance critical.
Analysis derived from Audi technical bulletins (2013–2019) and UK DVSA failure statistics (2015–2023). 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 CASA offers strong performance and improved efficiency over earlier EA888 units, but early models (2013–2015) had reliability concerns, particularly HPFP failures. Later revisions (post-2016) improved pump cooling and durability, so well-maintained examples can be quite robust. Regular servicing and using high-quality fuel (RON 98) greatly aid longevity.
The biggest issues are high-pressure fuel pump degradation, turbo wastegate actuator sticking, and intake swirl flap failure. Other complaints include oil leaks from gaskets and occasional PCV or EGR faults. These are well-documented in Audi service bulletins and technical reports.
This 1.8L turbo petrol was used widely across Audi's compact and mid-size lineup (Euro 6 era models). It appeared in the A3 (8V), S3 (8S), and A4 (B8.5), primarily as the 1.8 TFSI. It was also used in Seat Leon and Skoda Octavia under VW Group sharing. In all cases, it was phased out by 2019 in favour of newer EA888 Gen 3 variants.
Yes. The CASA is highly tunable. ECU remaps routinely gain +40–60 kW safely on stage 1, since the stock internals handle torque well. Aftermarket upgrades (larger turbo, intercooler, exhaust) can boost power further. Enthusiasts frequently remap A3 and S3 models for sharper response. Any tuning should be done carefully and with supporting mods to avoid overstressing the engine.
Moderate. In an A3 1.8 TFSI (132 kW) from around 2015, typical consumption is ~8.7 L/100km (city) and ~5.8 L/100km (highway), or about 39 mpg UK combined. Real-world figures depend on driving style, but expect 35–44 mpg (UK) on mixed roads for a healthy CASA engine.
Yes. The EA888 series (like most modern Audis) is an interference engine. This means if the timing chain jumps or breaks, pistons can hit open valves, causing serious engine damage. That's why chain maintenance is critical - any warning rattles should be addressed immediately.
Audi specifies a 5W-40 synthetic oil meeting Audi Longlife-04 spec. Always use a quality oil designed for turbo petrol engines and change it at regular intervals (around 15,000 km or as Audi recommends) to ensure proper turbo and chain lubrication.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with AUDI or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
AUDI Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialAUDI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.