The Volkswagen CUWA 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 turbocharged direct injection system enables strong mid — range pull with improved fuel efficiency compared to larger naturally aspirated units.
Fitted to models such as the Golf Mk6 R, Scirocco R, and Audi S3 (8P), t…
All production years 2008–2015 meet Euro 5 standards .
The Volkswagen CUWA is a 1,984 cc inline‑four turbocharged petrol engine engineered for performance hatchbacks and coupés (2008–2015). It combines gasoline direct injection with a single turbocharger to deliver responsive power and strong mid-range torque. Designed to meet Euro 5 emissions standards, it balances sporty performance with acceptable fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
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 HDEV5 direct injection (up to 120 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Turbocharger | Single K04 turbo (BorgWarner) | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 143 kg |
The Volkswagen CUWA was used across Volkswagen's Mk6 and Scirocco platforms with transverse mounting and shared with Audi for longitudinal applications. This engine received platform-specific adaptations—reinforced engine mounts in the Golf R and revised cooling in the Scirocco R—and from 2013 the Audi S3 facelift adopted the CAEB variant, creating interchange limits. 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 CUWA offers strong performance but early units (2008–2011) are prone to HPFP and carbon buildup issues. Later revisions improved fuel pump durability. With strict adherence to oil changes (using VW 502/504 oil) and high-quality fuel, well-maintained examples can exceed 200,000 km reliably.
Top issues include high-pressure fuel pump failure, intake valve carbon buildup, turbo oil leaks, and timing chain tensioner wear. These are documented in Volkswagen service bulletins like SIB 2011‑07 and SIB 2010‑12, especially affecting pre-2012 builds.
The CUWA powered the Golf Mk6 R (2009–2013), Scirocco R (2009–2014), and Audi S3 (8P, 2008–2012). All are Euro 5–compliant performance variants sharing the 211 PS 2.0 TSI platform.
Aftermarket ECU tuning is common on the CUWA 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 ~9.5 L/100km (city) and ~6.2 L/100km (highway), or ~30 mpg UK combined. Expect 28–33 mpg (UK) on mixed roads. Economy suffers with aggressive driving or if carbon buildup restricts airflow.
Yes. The CUWA is an interference engine. Timing chain failure or jump can cause piston-to-valve contact, resulting in catastrophic damage. Immediate attention to chain rattle or timing faults is essential.
Volkswagen specifies 5W‑30 or 5W‑40 synthetic oil meeting VW 502 00 or 504 00 standards. Always use manufacturer-approved oil and change every 10,000–15,000 km to protect the HPFP, turbo, and timing system.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
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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