The Volkswagen CXCB is a 1,498 cc, inline‑four turbocharged petrol engine introduced in 2020. It features direct fuel injection (TSI), a single twin — scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 250 Nm of torque, with responsive low‑end performance ideal for urban and highway driving.
Fitted to models including the Mk8 Golf, T — Roc, and Taigo, the CXCB was engineered for efficiency, drivability, and compatibi…
All production years (2020–present) meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen CXCB is a 1,498 cc inline‑four turbocharged petrol engineered for compact and mid‑size models (2020–present). It combines direct TSI injection with a twin‑scroll turbocharger to deliver responsive low‑end torque and mild-hybrid synergy. Designed to meet Euro 6d standards, it balances performance with stringent emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol (RON 95 min) | |
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 HDP6 high-pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Turbocharger | Single twin‑scroll (Honeywell TD04L) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | VW 504 00 / 507 00 (SAE 5W‑30) | |
Dry weight | 128 kg |
The Volkswagen CXCB was used across Volkswagen's Mk8 and T-Roc platforms with transverse mounting and integrated into mild-hybrid systems. This engine received platform-specific adaptations—revised coolant routing in the Golf Mk8 and updated engine mounts in the Taigo—and from 2022 the updated cam follower design, creating service part distinctions. All adaptations are documented in OEM technical bulletins.
The CXCB's primary reliability risk is high-pressure fuel pump cam follower wear, with elevated incidence in urban stop-start use. Volkswagen internal quality data from 2022 indicated a measurable uptick in pump-related faults before 60,000 km in pre-mid-2022 builds, while UK DVSA records show GPF-related warning lights as the second-most common emissions fault in mild-hybrid applications. Short-trip driving and incorrect oil specification accelerate wear, making oil quality and driving pattern critical.
Analysis derived from Volkswagen technical bulletins (2020-2024) and UK DVSA failure statistics (2020-2024). 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 CXCB offers strong efficiency and performance, but early units (2020–mid-2022) had cam follower wear concerns under short-trip use. Post-2022 revisions improved durability. With correct oil (VW 504 00/507 00) and regular extended drives, it can be very reliable. Mild-hybrid integration adds complexity but is generally robust.
Top issues include high-pressure fuel pump cam follower wear, GPF clogging from short trips, turbo wastegate rattle, and coolant flange leaks. These are documented in VW service bulletins, particularly SIB 2022‑07‑03 for the cam follower issue.
The CXCB appears in the Golf Mk8, T-Roc, and Taigo from 2020–present. It is specifically tuned for mild-hybrid applications and meets Euro 6d across all markets.
Yes, but cautiously. Stage 1 ECU remaps typically yield +15–25 kW safely due to robust internals. However, tuning may affect GPF regeneration and mild-hybrid system calibration. Always use supporting hardware and professional calibration.
In mild-hybrid applications like the Golf Mk8 eTSI, expect ~5.0–5.6 L/100km (50–56 mpg UK) combined, depending on driving style. Non-hybrid variants achieve similar figures due to cylinder deactivation and efficient turbo response.
Yes. The CXCB is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is front-mounted and designed as maintenance-free for the engine’s service life.
Volkswagen specifies 5W-30 oil meeting VW 504 00 / 507 00 standards. This low-SAPS oil protects the GPF and ensures proper cam follower lubrication. Change intervals should not exceed 15,000 km or 12 months, especially with short-trip driving.
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