The Volkswagen CUAA is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2008 and 2015. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 155 kW (211 PS) and 280 Nm of torque. Its compact design and turbocharging enable strong low‑rpm response for sporty yet practical drivability.
Fitted to models such as the Golf Mk6 GTI, Passat B6, and Škoda Superb, the CUAA was engineered for dynamic perfo…
All CUAA production years (2008–2015) meet Euro 5 emissions standards .
The Volkswagen CUAA is a 1,984 cc inline‑four turbocharged petrol engineered for performance sedans and hatchbacks (2008–2015). It combines direct fuel injection (TSI) with a single turbocharger to deliver responsive power and strong mid‑range torque. Designed to meet Euro 5 standards, it balances sporty character with acceptable fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol (RON 95 min) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 155 kW (211 PS) @ 6,000 rpm | |
Torque | 280 Nm @ 1,800–5,000 rpm | |
Fuel system | Bosch HDP5 high-pressure direct injection (up to 120 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 9.6:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Turbocharger | Single K04 turbo (Garrett/BorgWarner) | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 145 kg |
The Volkswagen CUAA was used across Volkswagen's Mk6 and B6 platforms with transverse mounting and shared with Škoda under the Volkswagen Group modular strategy. This engine received platform-specific adaptations—revised cooling in the Passat and reinforced mounts in the Golf GTI—and from 2012 the HPFP and camshaft lobe updates improved reliability, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 CUAA offers strong performance and is generally robust if maintained properly. Early units (2008–2011) had HPFP reliability concerns, addressed in 2012 revisions. With correct oil (VW 502 00/504 00), quality fuel, and timely servicing, it can exceed 200,000 km without major issues.
Top issues include high-pressure fuel pump wear, intake valve carbon buildup (due to direct injection), turbo actuator faults, and minor oil leaks. HPFP problems are well-documented in VW service bulletin 2011‑09, while carbon buildup is a known trait of all TSI engines.
The CUAA powered the Golf Mk6 GTI (2009–2013), Passat B6 (2008–2010), and Škoda Superb (2008–2015). It’s a transverse-mounted 2.0 TSI producing 211 PS, used across the Volkswagen Group’s mid-size and performance platforms.
Aftermarket ECU tuning is common on the CUAA platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Real-world consumption is ~9.8 L/100km (city) and ~6.4 L/100km (highway), or about 29–37 mpg UK combined. Aggressive driving reduces economy significantly; conservative use may achieve low 8s L/100km.
Yes. The CUAA is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is generally durable with proper maintenance.
Volkswagen specifies 5W‑40 synthetic oil meeting VW 502 00 or 504 00 standards. This is critical for HPFP and cam lobe protection. Change intervals should not exceed 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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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.
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