The Volkswagen CLCB is a 1,968 cc, inline‑four turbocharged common — rail diesel engine produced between 2015 and 2020. It features DOHC, 16 valves, and a single variable — geometry turbocharger (VGT) with air — to — air intercooler, delivering 110 kW (150 PS) and 340 Nm of torque. This engine employs Volkswagen’s TDI technology, combining high — pressure direct injection with exhaust gas recirculation (EGR) and a diesel particulate filter (DPF) to meet stringent emissio…
Production years 2015–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/8901).
The Volkswagen CLCB is a 1,968 cc inline‑four turbocharged diesel engine engineered for compact and mid-size models (2015–2020). It combines common-rail direct injection with a variable-geometry turbocharger to deliver strong low-end torque and efficient highway cruising. Designed to meet Euro 6 emissions standards, it integrates EGR, DPF, and selective catalytic reduction (SCR) for regulated NOx control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel (EN 590 ultra-low-sulfur) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged with air-to-air intercooler | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,500–4,000 rpm | |
Torque | 340 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CP4.2 common-rail (up to 2,000 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 16.2:1 | |
Cooling system | Water‑cooled with dual-circuit thermostat and electric auxiliary pump | |
Turbocharger | Single variable-geometry turbo (VGT, BorgWarner) | |
Timing system | Chain-driven (front-mounted, low wear design) | |
Oil type | VW 507 00 (SAE 5W‑30) | |
Dry weight | 148 kg |
The Volkswagen CLCB was used across Volkswagen's Golf VII, Passat B8, and Tiguan Mk2 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Passat and enhanced oil cooling in the Tiguan—and from late 2017 the Golf received updated EGR cooler hardware, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
The CLCB's primary reliability risk is EGR cooler failure on early builds, with elevated incidence in high-temperature or stop-start urban use. Volkswagen internal data from 2018 indicated a notable rate of EGR cooler replacement before 100,000 km in pre-late-2017 units, while UK DVSA MOT records show minimal DPF-related failures due to robust regeneration logic. Extended oil intervals and non-compliant diesel increase CP4.2 pump stress, making fuel quality and maintenance adherence critical.
Analysis derived from Volkswagen technical bulletins (2015–2020) 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 CLCB offers strong torque and good efficiency, but early units (2015–late 2017) are prone to EGR cooler failures. Later revisions (late 2017 onward) improved cooler durability. With proper maintenance—especially using correct diesel (EN 590) and oil (VW 507 00)—the engine can be very reliable beyond 200,000 km.
Top issues include EGR cooler cracking, CP4.2 high-pressure fuel pump seizure, DPF regeneration faults from short-trip driving, and VGT turbo actuator sticking. These are documented in Volkswagen service bulletins, particularly SIB 2017‑05‑14 for EGR concerns.
The CLCB was used in the Golf VII (2015–2020), Passat B8 (2015–2020), and Tiguan Mk2 (2016–2020), all as the 2.0 TDI 150 PS variant. All are Euro 6-compliant, with later models (post-2018) adding AdBlue for EU6d-temp compliance.
Yes. The CLCB responds well to ECU remapping, typically gaining +20–30 kW on stage 1 with stock hardware. The VGT turbo and internals support up to ~180 kW with supporting mods (intake, exhaust, intercooler). Always use EN 590 diesel and monitor EGR/DPF health post-tune.
In a Golf 2.0 TDI, expect ~5.2 L/100km (city) and ~3.8 L/100km (highway), or about 58 mpg UK combined. Real-world mixed driving typically yields 50–60 mpg (UK), depending on driving style and conditions. Efficiency is class-leading for its era.
Yes. The CLCB is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain design is robust and rarely fails if maintained properly.
Volkswagen specifies 5W‑30 synthetic oil meeting VW 507 00 standards. Always use a VW-approved oil and change every 15,000 km or 12 months to protect the turbo, CP4.2 pump, and timing system.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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