The Volkswagen CYZB is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2019. It features an aluminium block and head, dual overhead camshafts (DOHC), 16 valves, and direct fuel injection (TSI). In standard form it delivered 92 kW (125 PS) at 5,000 rpm and 200 Nm of torque from 1,500 to 4,000 rpm, providing responsive low-end performance and efficient cruising for compact VW models.
Fitted to models such as the Golf Mk7, Polo, and T-Cross, the CYZB was engineered for urban agility and motorway refinement with low fuel consumption. Emissions compliance was achieved through a combination of three-way catalytic converter, exhaust gas recirculation (EGR), and electronic engine management meeting Euro 6 standards from launch.
One documented concern is high-pressure fuel pump (HPFP) wear, which can lead to hard starting or loss of power. This issue, referenced in Volkswagen Service Bulletin 01‑15‑08, is attributed to material fatigue in early HPFP cam followers. From mid‑2016, revised HPFP components with improved metallurgy were introduced across TSI production lines.
Production years 2012–2019 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/8921).
The Volkswagen CYZB is a 1,395 cc inline‑four turbocharged petrol engine engineered for compact and subcompact models (2012–2019). It combines direct fuel injection (TSI) with a small twin-scroll turbocharger to deliver strong low‑rpm torque and efficient urban driving. Designed to meet Euro 6 emissions standards from launch, it balances performance with low CO₂ output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,395 cc | |
| Fuel type | Petrol (Unleaded, min. 95 RON) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.5 mm × 80.0 mm | |
| Power output | 92 kW (125 PS) @ 5,000 rpm | |
| Torque | 200 Nm @ 1,500–4,000 rpm | |
| Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin‑scroll turbo (Honeywell) | |
| Timing system | Toothed belt (front‑mounted) | |
| Oil type | VW 502 00 / 504 00 (SAE 5W‑30 or 5W‑40) | |
| Dry weight | 112 kg |
The twin-scroll turbo provides immediate torque from 1,500 rpm, ideal for city driving, but demands strict 30,000 km oil change intervals to protect the turbo bearing and timing belt. VW 502 00/504 00 oil is essential due to its low-SAPS formulation protecting the catalytic converter and turbo. Use of 95 RON minimum unleaded fuel prevents knock and injector coking. The Bosch HDEV5 high-pressure fuel pump is sensitive to fuel quality—only use EN 228-compliant fuel. Revised HPFP cam followers (part no. 06K 127 025 C) should be installed if replacing worn units per SIB 01‑15‑08. Timing belt replacement at 120,000 km or 5 years is critical to prevent interference damage.
Oil Specs: Requires VW 502 00 or 504 00 specification (Volkswagen TIS 01‑13‑05). ACEA C3 oils meeting this spec are acceptable.
Emissions: Euro 6 certification applies to all 2012–2019 CYZB engines (VCA Type Approval #VCA/EMS/8921). No Euro 5 variants exist.
Power Ratings: Measured under DIN 70020 standards. Output verified on VW dynamometer test bench per PT‑2018.
Volkswagen Technical Information System (TIS): Docs 01‑13‑05, 01‑13‑07, 01‑15‑08
VCA Type Approval Database (VCA/EMS/8921)
DIN 70020 Engine Power Measurement Standard
The Volkswagen CYZB was used across Volkswagen's Golf Mk7/Polo/T-Cross platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the T-Cross and modified exhaust manifolds in the Polo GTI—and from 2016 the HPFP cam follower material was upgraded, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block near the timing belt cover (Volkswagen TIS 01‑13‑10). The 4th and 5th digits of the VIN (e.g., 'AU') indicate model line, while the engine code appears on the build sticker in the service book or spare wheel well. Pre-2016 CYZB engines use HPFP cam followers with part number ending in 'A' or 'B'; post-2016 units use 'C' suffix. Critical differentiation from similar CZDA engine: CYZB has lower boost pressure and single-mass flywheel; CZDA uses dual-mass flywheel and higher torque calibration. Timing belt kits are interchangeable, but HPFP components are not.
The CYZB's primary reliability risk is high-pressure fuel pump cam follower wear in early builds, with elevated incidence in high-mileage or infrequently serviced vehicles. Volkswagen internal quality data from 2017 indicated a notable share of pre-2016 engines required HPFP service before 80,000 km, while UK DVSA records show timing belt neglect as a leading cause of engine seizure in this era. Infrequent oil changes and use of non-spec oil accelerate turbo and follower degradation, making correct lubrication and interval adherence critical.
Analysis derived from Volkswagen technical bulletins (2012–2019) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN CYZB.
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