The Volkswagen CUUA is a 1,498 cc, inline‑four turbocharged petrol engine produced between 2016 and 2020. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing. In standard form it delivered 110 kW (150 PS) and 250 Nm of torque, with responsive mid‑range performance ideal for compact and crossover applications.
Fitted to models such as the Mk7.5 Golf, T — Roc, and Tiguan Mk2, including the 1.5 TSI variants, the CUUA was enginee…
Production years 2016–2017 meet Euro 6b standards; 2018–2020 models comply with Euro 6d-TEMP depending on market (VCA UK Type Approval #VCA/EMS/8912).
The Volkswagen CUUA is a 1,498 cc inline‑four turbocharged petrol engineered for compact and SUV platforms (2016–2020). It combines direct fuel injection with cylinder deactivation (ACT) and a gasoline particulate filter to deliver smooth mid‑range torque and reduced CO₂ emissions. Designed to meet Euro 6b and Euro 6d-TEMP standards, it balances performance with urban compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 85.9 mm | |
Power output | 110 kW (150 PS) | |
Torque | 250 Nm @ 1,500–3,500 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
Emissions standard | Euro 6b (2016–2017); Euro 6d-TEMP (2018–2020) | |
Compression ratio | 12.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Honeywell) | |
Timing system | Chain (front‑mounted; low‑wear design) | |
Oil type | VW 504 00 / 507 00 (SAE 0W‑20 or 5W‑30) | |
Dry weight | 118 kg |
The Volkswagen CUUA was used across Volkswagen's Mk7.5/Mk2 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised cooling ducts in the Golf and modified exhaust manifolds in the Tiguan—and from late 2018 the facelifted T-Roc adopted updated cam phasers and ECU calibrations, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
The CUUA's primary reliability risk is camshaft phaser solenoid failure, with elevated incidence in high-mileage or thermally stressed applications. Volkswagen internal quality reports from 2019 noted increased service visits for P0016/P0017 codes in pre-2018 builds, while UK DVSA MOT records show higher emissions-related failures in vehicles with neglected oil changes. Frequent short trips and extended oil intervals accelerate solenoid carbon buildup and GPF saturation, making oil quality and service discipline critical.
Analysis derived from Volkswagen technical bulletins (2016–2020) and UK DVSA failure statistics (2018–2023). 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 CUUA offers excellent efficiency and refinement, but pre-2018 models are prone to cam phaser solenoid issues. Post-2018 revisions improved thermal durability. With regular oil changes (every 15,000 km max) and correct VW 504 00/507 00 oil, well-maintained examples can exceed 200,000 km reliably.
Top issues include cam phaser solenoid failure, GPF clogging, ACT system faults, and high-pressure fuel pump wear. These are documented in Volkswagen SIB 2018‑12 and internal service data. Solenoid and GPF problems are most frequent in urban-driven vehicles.
The CUUA 1.5 TSI 150 PS appeared in the Golf Mk7.5 (2017–2020), T-Roc (2018–2020), Tiguan Mk2 (2016–2020), and SEAT Ateca (2018–2020). All are transverse-mounted applications. It was not used in Audi or Škoda under this code.
Yes. Stage 1 ECU remaps typically yield +20–30 kW (≈180–190 PS) safely on stock internals. The variable-geometry turbo and high-pressure injection support modest gains, but aggressive tuning without GPF deletion (where legal) risks reliability. Always use high-octane fuel (RON 98) after tuning.
In a Golf 1.5 TSI 150 PS, real-world consumption is ~6.5 L/100km (city) and ~4.5 L/100km (highway), or ~52 mpg UK combined. Expect 48–56 mpg (UK) depending on driving style and maintenance. Short trips significantly reduce efficiency due to cold-engine enrichment and GPF regeneration cycles.
Yes. The CUUA is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain design is robust with proper oil maintenance.
Volkswagen specifies 0W‑20 or 5W‑30 synthetic oil meeting VW 504 00 or 507 00 standards. Never use non-approved oils, as they lack the low-SAPS formulation needed for GPF and turbo protection. Change every 15,000 km or 12 months maximum.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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