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 (VCA UK Type Approval #VCA/EMS/7892).
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 | VW 502 00 / 504 00 (SAE 5W‑30 or 5W‑40) | |
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.
The CJXB's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear on early builds, with elevated incidence in high-mileage or track-use applications. Volkswagen internal field data from 2014 indicated a notable rate of HPFP-related repairs before 100,000 km, while UK DVSA records show secondary issues with carbon buildup on intake valves in direct-injection TSI engines. Extended oil intervals and inconsistent fuel quality accelerate wear, making oil/fuel quality and service adherence critical.
Analysis derived from Volkswagen technical bulletins (2012–2015) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
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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.
Yes. The CJXB responds well to ECU remapping, typically gaining +30–50 kW on stage 1 with stock hardware. Supporting upgrades (intercooler, downpipe, HPFP) allow 270+ PS safely. However, HPFP reliability must be confirmed before tuning to avoid accelerated wear.
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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Regulation (EC) No 715/2007
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