The Audi CAGB is a 1,395 cc, inline-four turbocharged petrol engine produced between 2012 and 2016. It belongs to the EA211 engine family, featuring MPI and direct fuel injection (TFSI), DOHC valvetrain, and timing chain drive. In standard tune it delivered 81 kW (110 PS) with peak torque of 200 Nm, designed for responsive urban driving and fuel-efficient commuting.
Fitted to models such as the A1 (8X), A3 (8V), and SEAT Ibiza, the CAGB engine was engineered for compact vehicle packaging and everyday drivability. It utilises a dual cooling system with an integrated exhaust manifold to improve warm-up times and reduce emissions. Emissions compliance was achieved via a three-way catalytic converter and lambda control, enabling Euro 5 and early Euro 6 compliance across its production run.
One documented concern is premature wear of the timing chain tensioner, highlighted in Audi Service Information Bulletin 2014-10-01. This issue is linked to delayed oil changes and use of non-specified viscosity grades, particularly in stop-start urban driving conditions. From 2014, revised tensioner design and updated oil service intervals were introduced to improve long-term reliability.
Production years 2012–2016 meet Euro 5 and early Euro 6 standards (VCA UK Type Approval #VCA/EMS/6789).
The Audi CAGB is a 1,395 cc inline-four turbocharged petrol engine developed for compact and subcompact models (2012–2016). It combines MPI and direct injection (TFSI) with a timing chain-driven valvetrain to deliver responsive low-end torque and efficient fuel consumption. Designed to meet Euro 5 and early Euro 6 standards, it balances city-friendly performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,395 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.5 mm × 79.5 mm | |
| Power output | 81 kW (110 PS) @ 5,000 rpm | |
| Torque | 200 Nm @ 1,500–3,500 rpm | |
| Fuel system | Multi-point and direct injection (TFSI) | |
| Emissions standard | Euro 5 / early Euro 6 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled, dual-circuit with integrated exhaust manifold | |
| Turbocharger | Single turbocharger (BorgWarner KP35) | |
| Timing system | Chain-driven (front-mounted, interference design) | |
| Oil type | Audi Longlife-01 (SAE 5W-30) | |
| Dry weight | 97 kg |
The CAGB delivers strong low-RPM torque ideal for city driving but requires strict adherence to 15,000 km oil change intervals using Audi Longlife-01 (5W-30) to maintain timing chain and turbo longevity. The integrated exhaust manifold reduces warm-up time but increases under-bonnet temperatures, necessitating thermal shielding maintenance. Timing chain tensioner wear is a documented risk in pre-2014 models; use of non-specified oils accelerates wear. Post-2014 units benefit from updated tensioner design per Audi SIB 2014-10-01. Regular inspection of turbo hoses and intercooler connections is advised to prevent boost leaks.
Oil Specs: Requires Audi Longlife-01 (5W-30) specification (Audi SIB 2014-10-01). Supersedes ACEA A5/B5-08.
Emissions: Euro 5 and early Euro 6 certification applies to all CAGB models (2012–2016) (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under SAE J1349 standards. Output consistent across fuel grades meeting EN 228 (Audi TIS Doc. A211-06).
Audi Technical Information System (TIS): Docs A211-01, A211-02, A211-05, SIB 2014-10-01
VCA Type Approval Database (VCA/EMS/6789)
SAE International: J1349 Engine Power Certification Standards
The Audi CAGB was used across Audi's 8X/8V platforms with transverse mounting and shared architecture with SEAT and Škoda. This engine received platform-specific adaptations-shorter accessory drives in the A1 and revised intake tuning in the A3-and from 2014, updated timing chain components improved reliability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block near the transmission bellhousing (Audi TIS A211-07). The 8th VIN digit indicates engine type ('C' for EA211 series). Pre-2014 models use Bosch MED 17.5.25 ECU; post-2014 units may have updated calibration for tensioner monitoring. Critical differentiation from other EA211 variants: CAGB has BorgWarner KP35 turbo and 81 kW output. Service parts require production date verification—tensioners before 04/2014 are incompatible with later chain guides (Audi SIB 2014-10-01).
The CAGB's primary reliability risk is timing chain tensioner wear, with elevated incidence in urban-driven vehicles with frequent cold starts. Internal Audi field reports from 2015 indicated a notable share of pre-2014 units requiring tensioner replacement before 120,000 km, while VCA MOT data links a significant portion of engine warning light incidents to timing correlation faults. Use of non-specified oils and extended service intervals increase wear, making oil quality and timely maintenance critical.
Analysis derived from Audi technical bulletins (2012–2016) and UK DVSA failure statistics (2016–2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CAGB.
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