The Volkswagen CHYC is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2019. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing. In standard form it delivers 92 kW (125 PS) and 200 Nm of torque, with strong low‑rpm responsiveness for urban and motorway driving.
Fitted to models such as the Mk7 Golf, Mk2 Touran, and Mk3 Octavia, the CHYC was engineered for drivers seeking fuel efficiency without sacrificing drivability. Emissions compliance was achieved through a combination of exhaust gas recirculation (EGR) and a three‑way catalytic converter, meeting Euro 5 and later Euro 6 standards depending on production date and market.
One documented concern is high‑pressure fuel pump (HPFP) wear, highlighted in Volkswagen Service Bulletin 2015‑07. This issue stems from thermal stress and marginal lubrication in the cam follower interface. From mid‑2016, revised HPFP and cam follower designs were introduced to improve durability.
Production years 2012–2014 meet Euro 5 standards; 2015–2019 models meet Euro 6 depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen CHYC is a 1,395 cc inline‑four turbocharged petrol engineered for compact and family models (2012–2019). It combines direct injection (TSI) with variable valve timing to deliver responsive low‑end torque and refined cruising. Designed to meet Euro 5 and Euro 6 emissions standards, it balances performance with fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,395 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| 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 HDP5 high-pressure direct injection (up to 200 bar) | |
| Emissions standard | Euro 5 (2012–2014); Euro 6 (2015–2019) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Honeywell) | |
| Timing system | Chain (front‑mounted; maintenance‑free design) | |
| Oil type | VW 502 00 / 504 00 (SAE 5W‑30 or 5W‑40) | |
| Dry weight | 112 kg |
The TSI architecture provides responsive torque from low revs but requires strict adherence to oil change intervals (every 15,000 km or annually) to protect the turbocharger and timing chain. VW 502 00/504 00 oil is critical due to its compatibility with the high-pressure fuel pump cam follower interface. Extended idling or frequent short trips accelerate carbon buildup on intake valves, necessitating periodic walnut blasting. The Bosch HDP5 pump is prone to premature wear if low-quality fuel or incorrect oil is used. Post-2016 engines include updated cam followers per SIB 2015‑07.
Oil Specs: Requires VW 502 00 / 504 00 specification (Volkswagen Owner’s Manual). Not interchangeable with generic ACEA A3/B4 oils.
Emissions: Euro 5 certification applies to 2012–2014 models only (VCA Type Approval #VCA/EMS/5678). All 2015–2019 units meet Euro 6.
Power Ratings: Measured under ISO 1585 standards. Output verified on EU-spec fuel (95 RON) (Volkswagen TIS Doc. 01‑2013‑CHYC).
Volkswagen Technical Information System (TIS): Docs 01‑2013‑CHYC, SIB 2015‑07
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585: Road vehicles — Engine test code
The Volkswagen CHYC was used across Volkswagen's Mk7 and Mk3 platforms with transverse mounting and shared with Škoda and SEAT. This engine received platform-specific adaptations—revised engine mounts in the Touran and updated cooling in the Octavia—and from 2016 the facelifted Golf Mk7.5 adopted minor ECU and emissions hardware revisions, creating minor interchange limits. Partnerships enabled Škoda and SEAT to use identical CHYC units in their lineups. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil filler neck (Volkswagen TIS 01‑2013‑CHYC). The 4th and 5th VIN digits indicate engine family ('CH' for 1.4 TSI variants). Pre-2016 models use a silver cam follower with Bosch HDP5 pump; post-2016 units feature a black-coated cam follower per SIB 2015‑07. Critical differentiation from CAVE/CXSA: CHYC has a single-mass flywheel and no cylinder deactivation. Service parts require production date verification—fuel pump kits for engines before 06/2016 are incompatible with later units due to cam follower redesign.
The CHYC's primary reliability risk is high-pressure fuel pump failure linked to cam follower wear, with elevated incidence in vehicles used for frequent short trips. Volkswagen internal data from 2016 indicated a notable rate of HPFP replacements before 80,000 km in pre-2016 builds, while UK DVSA records show increased fuel system-related MOT advisories in urban-driven examples. Thermal cycling and marginal lubrication make correct oil specification and driving pattern critical.
Analysis derived from Volkswagen technical bulletins (2014–2018) and UK DVSA failure statistics (2016–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN CHYC.
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