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 CASA engine was engineered for dynamic responsiveness and everyday drivability. It met Euro 6 emissions standards through a combination of dual injection (direct + port), enhanced thermal management, and a close-coupled three-way catalytic converter. The engine's calibration prioritises rapid turbo spool and consistent power delivery across the rev range.
One documented concern is high-pressure fuel pump (HPFP) wear under sustained high-load conditions, particularly in hot climates or aggressive driving scenarios. This issue is noted in Audi Technical Service Bulletin 2015-18, which links premature failure to thermal stress and fuel quality. Audi revised the pump cooling ducting and mounting in mid-2016, improving reliability in later production units.
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 dual-injection system reduces intake valve carbon buildup and improves cold-start emissions but requires high-octane fuel (RON 98) for optimal performance and longevity. The integrated exhaust manifold enables rapid warm-up and turbo response, though sustained high-load operation demands robust cooling system maintenance. Audi Longlife-04 (5W-40) oil is essential due to higher thermal loads and turbo bearing protection requirements. The Bosch HDEV6 fuel pump is sensitive to low-quality petrol; using substandard fuel increases risk of HPFP failure, especially in hot climates. Post-2016 models feature improved pump cooling; pre-2016 units should be inspected per Audi TSB 2015-18. EGR and PCV systems require periodic service to prevent contamination and DTCs.
Oil Specs: Requires Audi Longlife-04 (5W-40) specification (Audi TSB 2015-18). Supersedes ACEA A3/B4 requirements.
Emissions: Euro 6a certification applies to pre-2016 models only (VCA Type Approval #VCA/EMS/7890). 2016–2019 models meet Euro 6c depending on market.
Power Ratings: Measured under SAE J1349 standards. 132 kW output requires RON 98 fuel (Audi TIS Doc. A33025).
Audi Technical Information System (TIS): Docs A32020, A32510, A32710, TSB 2015-18
VCA Type Approval Database (VCA/EMS/7890)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped vertically on the front-left side of the cylinder block near the exhaust manifold (Audi TIS A32160). The 8th VIN digit indicates engine family ('C' for EA888 Gen 3). Pre-2016 models have silver valve covers with black plastic cam covers; post-2016 units use black valve covers. Critical differentiation from EA888 Gen 2: CASA uses Bosch MED 17.8.3 ECU with trapezoidal diagnostic port, while Gen 2 uses MED 17.5.5 with round port. Service parts require production date verification - fuel pumps for engines before 06/2016 are incompatible with later units due to revised cooling ducting (Audi TSB 2015-18).
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.
Find answers to most commonly asked questions about AUDI CASA.
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