The Volkswagen CUSB is a 1,395 cc, inline‑four turbocharged petrol engine produced between 2012 and 2019. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing, delivering 110 kW (150 PS) and 250 Nm of torque. Its compact design and turbocharging enable strong low‑rpm response for agile urban and highway driving.
Fitted to models such as the Golf Mk7, Passat B8, and Audi A3 (8V), the CUSB was engineered for responsive performa…
All CUSB production years (2012–2019) meet Euro 6 emissions standards .
The Volkswagen CUSB is a 1,395 cc inline‑four turbocharged petrol engineered for compact and mid-size hatchbacks and sedans (2012–2019). It combines direct fuel injection (TSI) with a single turbocharger to deliver brisk low-end torque and efficient cruising. Designed to meet Euro 6 standards, it balances sporty character with urban efficiency and regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,395 cc | |
Fuel type | Petrol (RON 95 min) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 80.0 mm | |
Power output | 110 kW (150 PS) @ 5,000 rpm | |
Torque | 250 Nm @ 1,500–3,500 rpm | |
Fuel system | Bosch HDP5 high-pressure direct injection (up to 120 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Turbocharger | Single VTG turbo (Honeywell/IHI) | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 115 kg |
The Volkswagen CUSB was used across Volkswagen's Golf Mk7 and Passat B8 platforms with transverse mounting and shared within the Volkswagen Group. This engine received platform-specific calibrations—revised cooling in the Passat and updated ECU maps in the Golf—and from 2016 the HPFP cam follower upgrade improved reliability, 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.
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The CUSB offers responsive performance and good efficiency, but early units (2012–2015) had HPFP cam follower wear concerns. Post-2016 revisions improved durability significantly. With correct oil (VW 502 00/504 00), quality fuel, and timely servicing, it can exceed 180,000 km without major issues.
Top issues include HPFP cam follower wear, intake valve carbon buildup (due to direct injection), VTG turbo actuator faults, and minor oil leaks. Cam follower problems are well-documented in VW service bulletin 2015‑03, while carbon buildup is a known trait of all TSI engines.
The CUSB powered the Golf Mk7 (2012–2019), Passat B8 (2014–2019), Audi A3 (8V, 2013–2018), and SEAT Leon (2013–2018). It’s a transverse-mounted 1.4 TSI producing 150 PS, used across the Volkswagen Group’s compact and mid-size platforms.
Aftermarket ECU tuning is common on the CUSB 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.
Real-world consumption is ~7.5 L/100km (city) and ~5.3 L/100km (highway), or about 38–44 mpg UK combined. Conservative driving may achieve low 6s L/100km; aggressive use increases consumption significantly.
Yes. The CUSB is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is generally durable with proper maintenance.
Volkswagen specifies 5W‑40 synthetic oil meeting VW 502 00 or 504 00 standards. This is critical for HPFP cam follower protection. Change intervals should not exceed 15,000 km or 12 months.
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.
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.
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