The Volkswagen CJSC is a 1,395 cc, inline‑four turbo‑charged petrol engine produced between 2012 and 2019. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 92 kW (125 PS) and 200 Nm of torque. The compact design with integrated exhaust manifold enables rapid warm‑up and reduced emissions.
Fitted to models such as the Polo Mk5, Golf Mk7, and Škoda Fabia Mk3, the CJSC was engineered for urban efficiency and resp…
All production years 2012–2014 meet Euro 5 standards; 2015–2019 models meet Euro 6 .
The Volkswagen CJSC is a 1,395 cc inline‑four turbo‑charged petrol engineered for compact and subcompact models (2012–2019). It combines direct injection (TSI) with variable valve timing to deliver responsive low-end torque and urban drivability. Designed to meet Euro 5 (early) and Euro 6 (late) standards, it balances fuel economy with everyday performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,395 cc | |
Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
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 @ 1,400–4,000 rpm | |
Fuel system | Bosch HDP4 high-pressure direct injection (up to 150 bar) | |
Emissions standard | Euro 5 (2012–2014); Euro 6 (2015–2019) | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with dual‑circuit thermal management | |
Turbocharger | Single turbo with integrated exhaust manifold (Honeywell TD025) | |
Timing system | Chain (front‑mounted; early tensioner prone to wear) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The Volkswagen CJSC was used across Volkswagen's Mk5/Mk7 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts in the Golf and compact intake routing in the Polo—and from mid‑2016 the Fabia received updated timing hardware, creating minor service part distinctions. 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 CJSC is generally dependable when maintained properly. Early units (2012–mid-2016) had timing tensioner concerns, but post-update engines are more durable. Using RON 95+ fuel and adhering to 15,000 km oil changes with VW 502 00/504 00 spec oil significantly improves longevity. The timing chain is designed for life-of-engine use with proper oil maintenance.
Most documented issues are timing chain tensioner wear (pre‑2016), HPFP failure, PCV diaphragm rupture, and coolant housing leaks. These are covered in VW service bulletins. Carbon buildup is minimal due to direct injection, unlike earlier FSI engines.
The CJSC powered the Polo Mk5 (1.4 TSI 125 PS), Golf Mk7 (1.4 TSI 125 PS), and Škoda Fabia Mk3 (1.4 TSI 125 PS) from 2012 to 2019. It was not used in SEAT or Audi under this code—those brands used related but distinct EA211 variants.
Aftermarket ECU tuning is common on the CJSC 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.
In a Golf Mk7, expect ~6.8 L/100km (city) and ~4.6 L/100km (highway), or ~49 mpg UK combined. The Polo is slightly more efficient at ~6.2 L/100km city. Real-world economy depends heavily on driving style—aggressive use can push consumption above 8.5 L/100km.
Yes. Like all modern VW TSI engines, the CJSC is an interference design. If the timing chain jumps or fails (rare with proper maintenance), piston-to-valve contact will cause catastrophic damage.
Volkswagen specifies SAE 5W‑40 oil meeting VW 502 00 (petrol) or 504 00 (long-life) standards. Always use fully synthetic oil approved to these specs and change every 15,000 km or 12 months to protect the turbo, HPFP, and timing system.
Comprehensive technical documentation and regulatory references
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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.
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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.
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