The Audi CYGA is a 1,968 cc, inline-four turbo-diesel engine produced between 2018 and 2023. It belongs to the EA288 Evo engine family, featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard configuration it delivers 110 kW (150 PS) with 360 Nm of torque, offering strong low-end pull and improved efficiency for compact and mid-size models.
Fitted to models including the 8V A3, B9 A4, and 8Y A1, the CYGA was engineered for balanced performance and emissions compliance. It meets Euro 6d-TEMP standards through a combination of exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection in certain variants. The engine supports start-stop functionality and brake energy recuperation to enhance urban fuel economy without sacrificing drivability.
One documented concern is premature high-pressure fuel pump (HPFP) wear under sustained high-load conditions, particularly in early CYGA units. This issue, referenced in Audi Service Information Bulletin 2019-05-06, is associated with cam follower degradation affecting pump actuation. From 2020 onward, revised camshafts and updated HPFP assemblies were implemented across EA288 Evo engines to improve long-term reliability.
All production years (2018–2023) comply with Euro 6d-TEMP depending on market (VCA UK Type Approval #VCA/EMS/9012).
The Audi CYGA is a 1,968 cc inline-four turbo-diesel engine from the EA288 Evo series, designed for compact and mid-size models (2018–2023). It integrates variable geometry turbocharging with common rail injection and dual overhead camshafts to deliver responsive low-RPM torque and improved emissions control. Engineered to meet Euro 6d-TEMP standards, it balances drivability with stringent environmental compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,968 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (variable geometry) | |
| Bore × stroke | 81.0 mm × 95.5 mm | |
| Power output | 110 kW (150 PS) @ 3,250–4,200 rpm | |
| Torque | 360 Nm @ 1,750–3,000 rpm | |
| Fuel system | Bosch CRS 2-20 common rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Honeywell variable geometry turbo (VGT) with air/water intercooling | |
| Timing system | Timing chain (double-row, front-mounted) | |
| Oil type | VW 507 00 / 505 00 (SAE 5W-30) | |
| Dry weight | 148 kg |
The VGT turbo provides strong low-RPM torque ideal for urban and highway driving but requires consistent use of ultra-low sulfur diesel (EN 590) to prevent injector and pump wear. VW 507 00 (5W-30) oil is essential due to its low-SAPS formulation protecting the turbo and EGR system. Extended idling and short trips can accelerate DPF clogging and EGR fouling. The Bosch CRS 2-20 fuel pump relies on precise cam lobe contact; wear can cause rail pressure faults. Post-2020 models feature revised cam followers; pre-2020 units should be inspected per Audi SIB 2019-05-06. EGR cooler and DPF regeneration should be monitored to maintain emissions compliance.
Oil Specs: Requires VW 507 00 / 505 00 specification (Audi SIB 2019-04-05). Compatible with ACEA C2/C3 standards.
Emissions: Euro 6d-TEMP certification confirmed for all production years (2018–2023) in UK markets (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under ECE R85 standards. 110 kW output requires EN 590 diesel quality (Audi TIS Doc. B43015).
Audi Technical Information System (TIS): Docs B43010, B43015, B43020, SIB 2019-05-06
VCA Type Approval Database (VCA/EMS/9012)
ISO 1585:1996 Road vehicles — Test procedure for fuel consumption
The Audi CYGA was used across Audi's 8V/B9 platforms with transverse mounting and shared within the Volkswagen Group. This engine received platform-specific adaptations-integrated starter-generator (ISG) in mild-hybrid variants and revised cooling in high-performance A4 applications-and from 2020 the facelifted A3 8V adopted updated emissions controls, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front timing cover near the alternator (Audi TIS B43025). The 8th VIN digit indicates engine type ('C' for 2.0 TDI). Pre-2020 models have a single-row chain cover; post-2020 units feature a reinforced cover with updated tensioner. Critical differentiation from EA288 Gen 1: CYGA has integrated EGR cooler in cylinder head and revised PCV routing. Service parts require model-year verification—HPFP assemblies for pre-2020 engines are incompatible with later revisions due to cam follower redesign (Audi SIB 2019-05-06).
The CYGA's primary reliability risk is high-pressure fuel pump wear on early builds, with elevated incidence in high-mileage and performance-oriented use. Internal Audi quality reports from 2019 indicated a significant share of pre-2020 engines requiring HPFP replacement before 150,000 km, while VCA MOT data links a portion of fuel system failures to degraded injection timing in urban-driven examples. Frequent high-load operation and poor fuel quality increase pump and cam lobe stress, making fuel specification and maintenance adherence critical.
Analysis derived from Audi technical bulletins (2018-2023) and UK DVSA failure statistics (2019-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CYGA.
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