The Volkswagen CXXB is a 1,498 cc, inline‑four turbocharged petrol engine produced between 2019 and 2024. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing on both intake and exhaust cams. In standard form it delivers 110 kW (150 PS) at 5,000 rpm and 250 Nm of torque from 1,500–3,500 rpm, providing responsive performance with strong low‑end pull.
Fitted to models such as the Golf Mk8, T — Roc, and Škoda Octavia Mk4, the CXXB wa…
Production years 2019–2024 meet Euro 6d emissions standards .
The Volkswagen CXXB is a 1,498 cc inline‑four turbocharged petrol engine engineered for compact and mid-size hatchbacks and SUVs (2019–2024). It combines direct fuel injection (TSI) with a single turbocharger and dual‑VVT to deliver smooth power delivery and efficient urban driving. Designed to meet Euro 6d standards, it integrates a gasoline particulate filter (GPF) for particulate control while maintaining drivability and fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol (Unleaded, minimum 95 RON) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 85.9 mm | |
Power output | 110 kW (150 PS) @ 5,000 rpm | |
Torque | 250 Nm @ 1,500–3,500 rpm | |
Fuel system | Bosch HDP6 high‑pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed‑geometry turbo (Honeywell TD025) | |
Timing system | Chain‑driven DOHC with variable timing on intake and exhaust | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 113 kg |
The Volkswagen CXXB was used across Volkswagen's Golf Mk8, T-Roc, and Škoda MQB Evo platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the T-Roc and updated cooling packages in the Golf R-Line derivative—and from late 2021 the HPFP cam follower material upgrade, creating minor 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 CXXB is generally robust when maintained properly. Early units (2019–2021) are more prone to HPFP cam follower wear, while post-2021 engines show improved durability. Regular oil changes with VW 504 00/507 00 oil and use of quality fuel are essential for longevity beyond 150,000 km.
Top issues include HPFP cam follower wear causing hard starts, GPF clogging from short-trip driving, timing chain tensioner wear, and turbo wastegate rattle. These are documented in Volkswagen service bulletins SIB 2072156/3 and TIS updates from 2020 onward.
The CXXB powered the Golf Mk8 (2019–2024), T-Roc (2019–2024), Škoda Octavia Mk4 (2020–2024), and SEAT Leon Mk4 (2020–2023). It was used exclusively in transverse front-wheel-drive applications within the Volkswagen Group MQB Evo platform family.
Aftermarket ECU tuning is common on the CXXB 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 ~6.3 L/100km (city) and ~4.7 L/100km (highway), or about 41–46 mpg UK combined. In the Golf 1.5 TSI, official WLTP figures range from 5.2–5.9 L/100km depending on trim. Economy depends heavily on driving style and GPF regeneration frequency.
Yes. The CXXB is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, causing severe internal damage. This underscores the importance of timely chain system inspections and oil maintenance.
Volkswagen specifies VW 504 00 or 507 00 (SAE 5W‑30) synthetic oil. Change every 15,000 km or 12 months to protect the HPFP cam follower, timing components, and GPF. Non-approved oils increase wear and soot risk significantly.
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
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VCA Certification Portal
Type-approval guidance and documentation.
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