The Volkswagen CJZB is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2016. 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 integrates the exhaust manifold into the cylinder head, enabling rapid warm‑up and consistent low‑end response.
Fitted to models such as the Mk7 Golf, Mk2 Touran, and SEAT León (5F), the CJZB was engine…
All CJZB production years (2012–2016) meet Euro 5b emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Volkswagen CJZB is a 1,395 cc inline‑four turbocharged petrol engine engineered for compact hatchbacks and MPVs (2012–2016). It combines gasoline direct injection with a single turbocharger to deliver responsive low‑end torque and urban efficiency. Designed to meet Euro 5b standards, it balances fuel economy with drivability.
| 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 HDP5 high‑pressure direct injection (up to 150 bar) | |
Emissions standard | Euro 5b | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled with dual‑circuit layout | |
Turbocharger | Single turbocharger (Honeywell GT12) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | VW 502 00 / 505 00 (SAE 5W‑40) | |
Dry weight | 112 kg |
The Volkswagen CJZB was used across Volkswagen's Mk7 and MPV platforms with transverse mounting and shared within the Volkswagen Group. This engine received platform-specific calibrations—revised cooling in the Touran and sportier mapping in the SEAT León—and from 2015 the EA211 Gen 2 transition began, creating clear generational boundaries. All adaptations are documented in OEM technical bulletins.
The CJZB's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear in early builds, with elevated incidence in urban or short-trip usage. Volkswagen internal data (2014) indicated a notable rate of HPFP replacements before 80,000 km in pre-2014 units, while UK DVSA MOT records show minor turbo actuator faults as a secondary concern. Extended oil intervals and low-quality fuel increase HPFP and turbo stress, making fuel specification and service adherence critical.
Analysis derived from Volkswagen technical bulletins (2012–2016) and UK DVSA failure statistics (2015–2023). 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 CJZB is generally reliable when maintained properly, but early units (2012–2014) are prone to HPFP cam follower wear. Post-2014 revisions improved durability. Using RON 95+ fuel, VW 502 00 oil, and adhering to 15,000 km service intervals significantly enhances longevity. Many examples exceed 180,000 km with no major issues.
Top issues include high-pressure fuel pump failure (pre-2014), 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 observed in high-mileage urban vehicles.
The CJZB powered the Golf Mk7 (2012–2016), Touran Mk2 (2015–2016), SEAT León 5F (2012–2016), and Škoda Octavia Mk3 (2013–2016). It was exclusive to 125 PS applications within the VW Group EA211 TSI family and was never used in performance or diesel models.
Yes. The CJZB responds well to ECU remapping, typically gaining +20–30 kW on stage 1 with stock hardware. The GT12 turbo and forged internals support up to ~160 kW with upgraded intercooler, exhaust, and fueling. Always use RON 98 fuel and monitor HPFP health after tuning.
In a Golf Mk7, expect ~6.8 L/100km (city) and ~4.5 L/100km (highway), or about 42 mpg UK combined. Real-world mixed driving typically yields 38–45 mpg (UK). Economy is best with gentle driving due to the engine’s small displacement and turbo lag characteristics.
Yes. The CJZB 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
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with VOLKSWAGEN or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
VOLKSWAGEN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialVOLKSWAGEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.