The Audi CAGA is a 1,395 cc, inline-four turbocharged petrol engine produced between 2012 and 2019. It belongs to the Volkswagen Group's EA211 engine family, featuring an aluminium block, TSI direct fuel injection, and dual overhead camshafts. With an output of 77 kW (105 PS) and 175 Nm of torque, it delivers efficient urban performance and meets Euro 5 and later Euro 6 emissions standards.
Fitted to models such as the Audi A3 (8V), A1 (8X), and Volkswagen Golf (MK7), the CAGA was engineered for compact and subcompact applications where fuel efficiency and low-end responsiveness are prioritized. Its driving character emphasizes smooth throttle response and quiet operation, aided by timing chain-driven valvetrain and electric coolant pump. Emissions compliance was achieved via a three-way catalytic converter and closed-loop lambda control, with later models incorporating improved GPF-readiness for future regulations.
One documented concern is premature wear of the timing chain tensioner, particularly under extended oil service intervals. This issue, referenced in Audi Technical Service Bulletin 2014-01-007, stems from inadequate oil pressure during cold starts. In response, Audi issued revised maintenance intervals and updated tensioner components for model year 2015 and onward.
Production years 2012–2015 meet Euro 5 standards; 2016–2019 models comply with Euro 6b (VCA UK Type Approval #VCA/EMS/6789).
The Audi CAGA is a 1,395 cc inline-four turbocharged petrol engine designed for compact models (2012–2019). It integrates TSI direct injection with a small-displacement turbocharger to balance fuel economy and drivability. Engineered for Euro 5 and Euro 6 compliance, it supports both city commuting and mixed driving cycles.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,395 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.5 mm × 80.0 mm | |
| Power output | 77 kW (105 PS) @ 5,000–5,500 rpm | |
| Torque | 175 Nm @ 1,400–3,500 rpm | |
| Fuel system | Bosch HDEV5 direct injection (up to 150 bar) | |
| Emissions standard | Euro 5 (2012–2015), Euro 6b (2016–2019) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled with electric coolant pump | |
| Turbocharger | IHI IS20 turbocharger with electronic wastegate | |
| Timing system | Chain-driven (front-mounted; tensioner wear reported in early builds) | |
| Oil type | Audi Longlife 04 (SAE 5W-30) | |
| Dry weight | 98 kg |
The TSI turbocharging provides responsive low-RPM torque ideal for city driving but demands adherence to 15,000 km or annual oil changes to prevent timing chain tensioner wear. Audi Longlife 04 (5W-30) oil is essential due to its shear stability and protection for the front-mounted chain system. Extended idling and cold starts increase stress on the tensioner. Direct injection requires periodic intake valve cleaning to prevent carbon buildup. Post-2015 models benefit from updated tensioner hardware; pre-2015 units should follow Audi TSB 2014-01-007 for inspection. The three-way catalytic converter relies on precise lambda control to avoid thermal degradation.
Oil Specs: Requires Audi Longlife 04 (5W-30) specification (Audi TSB 2014-01-007). Supersedes ACEA A3/B4.
Emissions: Euro 5 applies to 2012–2015 models; Euro 6b certification for 2016–2019 (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under SAE J1349 standards. Output consistent across markets with RON 95 fuel (Audi TIS Doc. A13625).
Audi Technical Information System (TIS): Docs A13571, A13625, TSB 2014-01-007
VCA Type Approval Database (VCA/EMS/6789)
SAE International: J1349 Engine Power Certification Standards
The Audi CAGA was used across Audi's 8V/8X platforms with transverse mounting and shared within the Volkswagen Group. This engine received platform-specific adaptations-shorter intake manifolds in the A1 and revised engine mounts in the A3-and from 2015 the facelifted A3 models adopted updated tensioner hardware, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front of the cylinder block near the timing cover (Audi TIS A13593). The 8th VIN digit indicates engine type ('C' for CAGA series). Pre-2015 models have silver valve covers with ribbed plastic covers; post-2015 units use black valve covers. Critical differentiation from EA111: CAGA has integrated exhaust manifold in cylinder head and electronic throttle body. Service parts require production date verification - tensioner kits for engines before 09/2014 are incompatible with later units due to internal redesign (Audi TSB 2014-01-007).
The CAGA's primary reliability risk is timing chain tensioner wear on early builds, with elevated incidence in urban stop-start use. Internal Audi quality reports from 2015 noted a significant number of pre-2015 engines requiring tensioner replacement before 90,000 km, while UK DVSA records link intake carbon buildup to idle instability in city-driven vehicles. Cold-start cycles and extended oil intervals increase chain and guide stress, making oil quality and adherence to service intervals critical.
Analysis derived from Audi technical bulletins (2012–2019) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CAGA.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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