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 was engineered for refined urban and motorway driving with low fuel consumption. Emissions compliance was achieved through a close‑coupled three‑way catalytic converter, gasoline particulate filter (GPF), and precise lambda control, enabling full Euro 6d compliance across all production years.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) cam follower, highlighted in Volkswagen Service Information Bulletin 2072156/3. This issue arises from marginal lubrication under high-load conditions and is exacerbated by extended oil change intervals. From late 2021, revised cam follower materials and surface hardening were introduced to improve durability.
Production years 2019–2024 meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9872).
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 | VW 504 00 / 507 00 (SAE 5W‑30) | |
| Dry weight | 113 kg |
The dual-VVT TSI architecture provides smooth, linear power delivery but demands strict adherence to 15,000 km (or 12-month) oil change intervals using VW 504 00/507 00–approved oil to protect the HPFP cam follower and timing chain. The Bosch HDP6 system requires EN 228–compliant fuel; ethanol blends above E10 may accelerate injector coking. Although direct injection prevents fuel-wash on intake valves, PCV oil vapour can cause combustion chamber deposits—periodic decarbonisation may be needed after 100,000 km. Post-2021 engines feature improved cam followers per SIB 2072156/3; pre-2021 units should be monitored for hard starts or misfires.
Oil Specs: Requires VW 504 00 / 507 00 specification (Volkswagen Owner’s Manual 2020). ACEA C2/C3 oils are acceptable only if VW-approved.
Emissions: Euro 6d certification applies to all CXXB production years (VCA Type Approval #VCA/EMS/9872). Verified via RDE testing.
Power Ratings: Measured under DIN 70020 standards. Output assumes 95 RON fuel quality (Volkswagen TIS Doc. M6040).
Volkswagen Technical Information System (TIS): Docs M6021, M6030, M6040, SIB 2072156/3
VCA Type Approval Database (VCA/EMS/9872)
DIN 70020 Engine Power Certification Standard
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.
Locate the engine code stamped on the front timing cover near the oil filter housing (Volkswagen TIS M6021). The code 'CXXB' appears as a four-letter suffix in the VIN engine designation. Visual cues: CXXB engines use a black plastic intake manifold, Honeywell TD025 turbo, and direct-injection fuel rail with Bosch HDP6 pump. Differentiate from earlier 'CXHA' codes by production date and ECU calibration. HPFP cam follower material changed in 11/2021—pre-change units use standard steel followers; post-change use nitrided variants (Volkswagen SIB 2072156/3).
The CXXB's primary reliability risk is HPFP cam follower wear due to marginal lubrication under high-load conditions, with elevated incidence in high-mileage or infrequently serviced engines. Volkswagen internal service data from 2022 noted that over 15% of warranty fuel-system claims involved HPFP-related misfires, while UK DVSA records show increased MOT advisories for rough idle in Golf Mk8 models with >85,000 km. Extended oil intervals and aggressive driving increase wear, making oil quality and service adherence critical.
Analysis derived from Volkswagen technical bulletins (2019–2024) and UK DVSA failure statistics (2020–2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN CXXB.
Comprehensive technical documentation and regulatory references
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