The Volkswagen CJXB is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2012 and 2015. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing. In standard form it delivered 162 kW (220 PS) and 350 Nm of torque, enabling sporty performance with improved fuel economy over prior naturally aspirated units.
Fitted to models such as the Golf Mk7 GTI, Passat B7, and Tiguan, the CJXB was engineered for responsive per…
All production years 2012–2015 meet Euro 5b standards .
The Volkswagen CJXB is a 1,984 cc inline‑four turbocharged petrol engineered for compact and mid‑size models (2012–2015). It combines gasoline direct injection with a single turbocharger to deliver responsive performance and strong mid‑range torque. Designed to meet Euro 5b emissions standards, it balances sporty driving dynamics with reasonable fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol (Unleaded, min. 95 RON) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 162 kW (220 PS) @ 5,100–6,000 rpm | |
Torque | 350 Nm @ 1,500–4,400 rpm | |
Fuel system | Bosch HDP6 high-pressure direct injection (up to 150 bar) | |
Emissions standard | Euro 5b | |
Compression ratio | 9.6:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Turbocharger | Single K04 turbo (Garrett/Volkswagen) | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 145 kg |
The Volkswagen CJXB was used across Volkswagen's A6/B7/5N platforms with transverse mounting and shared with Škoda and SEAT under the VAG group. This engine received platform-specific adaptations—reinforced mounts in the Passat B7 and revised cooling in the Tiguan—and from 2014 the updated Golf Mk7 retained the CJXB while later models transitioned to EA888 Gen 3B. 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 CJXB offers strong performance and decent efficiency, but early units (2012–mid-2013) are prone to HPFP cam follower wear. Later revisions improved fuel pump durability. With strict maintenance—quality oil, correct fuel, and timely HPFP inspection—well-cared-for examples can exceed 200,000 km reliably.
Top issues include high-pressure fuel pump cam follower wear, intake valve carbon buildup (due to direct injection), timing chain tensioner wear, and turbo actuator faults. These are documented in VW service bulletins like STB 2013‑12 and widely observed in VAG TSI engines of this era.
The CJXB powered the Golf Mk7 GTI Performance, Passat B7 2.0 TSI (220 PS), Tiguan 2.0 TSI 4motion, plus Škoda Superb III and SEAT Leon Cupra from 2012–2015. All meet Euro 5b emissions and use the same 06K engine family architecture.
Aftermarket ECU tuning is common on the CJXB 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 GTI Performance, expect ~9.8 L/100km (city) and ~6.4 L/100km (highway), or ~34 mpg UK combined. Passat variants average 8.5–9.0 L/100km (~32 mpg UK). Real-world economy depends heavily on driving style and maintenance condition.
Yes. The CJXB is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, causing catastrophic internal damage. Regular oil changes and chain system inspection are essential to prevent this.
Volkswagen specifies 5W‑30 or 5W‑40 synthetic oil meeting VW 502 00 or 504 00 standards. Always use VW-approved oil and change every 15,000 km or annually to protect the turbo, timing chain, and HPFP cam follower.
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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