The Volkswagen CJSA is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2008 and 2015. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 155 kW (211 PS) and 280 Nm of torque. The integrated exhaust manifold within the cylinder head enables rapid warm‑up and consistent turbo response.
Fitted to models such as the Mk5 and Mk6 Golf R, Scirocco R, and Audi S3 (8P), the CJSA was engineered for high‑…
All CJSA production years (2008–2015) meet Euro 5 emissions standards .
The Volkswagen CJSA is a 1,984 cc inline‑four turbocharged petrol engine engineered for high‑performance hatchbacks and coupes (2008–2015). It combines gasoline direct injection with a single turbocharger to deliver responsive power and strong mid‑range torque. Designed to meet Euro 5 standards, it balances track‑capable output with daily drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 155 kW (211 PS) @ 6,000 rpm | |
Torque | 280 Nm @ 1,800–5,500 rpm | |
Fuel system | Bosch HDP5 high‑pressure direct injection (up to 150 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled with dual‑circuit layout | |
Turbocharger | Single K04 turbocharger (Garrett) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 149 kg |
The Volkswagen CJSA was used across Volkswagen's Mk5/Mk6 platforms with transverse mounting and shared with Audi under the VW Group modular strategy. This engine received platform-specific adaptations-reinforced engine mounts in the Golf R and revised cooling ducts in the Scirocco R-and from 2013 the Audi S3 facelift retained the CJSA until the EA888 Gen 3 transition, creating clear generational boundaries. 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 CJSA is robust when maintained properly, but early units (2008–2012) are prone to HPFP failure. Post-2012 revisions improved durability. Using RON 98 fuel, VW 502 00 oil, and adhering to 15,000 km service intervals significantly enhances longevity. Many examples exceed 200,000 km with no major issues.
Top issues include high-pressure fuel pump failure (pre-2012), turbo wastegate actuator faults, carbon buildup in combustion chambers, and minor oil leaks from the valve cover or oil cooler. These are documented in Volkswagen service bulletins and widely observed in high-mileage performance models.
The CJSA powered the Golf R (Mk5, 2009–2013), Scirocco R (2009–2017), and Audi S3 (8P, 2008–2012). It was exclusive to high-performance TSI applications within the VW Group and was never used in standard Golf or Passat models.
Aftermarket ECU tuning is common on the CJSA 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 R (Mk5), expect ~9.5 L/100km (city) and ~6.2 L/100km (highway), or about 30 mpg UK combined. Real-world mixed driving typically yields 28–33 mpg (UK). Economy suffers noticeably with aggressive driving due to the engine’s performance orientation.
Yes. The CJSA is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is designed as maintenance-free and generally reliable if oil quality and change intervals are respected.
Volkswagen specifies SAE 5W‑40 oil meeting VW 502 00 (petrol) or 505 00 (diesel-compatible) standards. Always use a high-quality synthetic oil and change every 15,000 km or annually to protect the turbo, HPFP, and timing system.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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.
Vehicle Certification Agency (VCA)
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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