The Volkswagen DNUC is a 1,968 cc, inline‑four turbo‑diesel engine produced between 2015 and 2020. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 340 Nm of torque, engineered for responsive low‑rpm performance and compliance with Euro 6 emissions.
Fitted to models such as the Golf Mk7, Passat B8, and Tiguan Mk2—including the 2.0 TDI 150 variants—the DN…
All DNUC engines (2015–2020) meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen DNUC is a 1,968 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2015–2020). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and refined cruising. Designed to meet Euro 6b emissions standards, it balances performance with fuel efficiency and regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) | |
Torque | 340 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6b | |
Compression ratio | 16.2:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Honeywell) | |
Timing system | Chain (front‑mounted; low‑wear design) | |
Oil type | VW 507 00 (SAE 5W‑30) | |
Dry weight | 158 kg |
The Volkswagen DNUC was used across Volkswagen's MQB platforms with transverse mounting and shared with Škoda and SEAT under the VAG group. This engine received platform-specific adaptations—revised engine mounts in the Tiguan and modified exhaust routing in the Passat—and from 2018 the facelifted Golf Mk7.5 retained the same engine code but with updated HPFP hardware, creating minor service part distinctions. Partnerships enabled Škoda Octavia and SEAT Ateca to use identical DNUC units. All adaptations are documented in OEM technical bulletins.
The DNUC's primary reliability risk is high-pressure fuel pump (HPFP) wear in early builds, with elevated incidence in vehicles using non‑EN 590 diesel or exceeding 15,000 km oil intervals. Volkswagen internal data from 2019 indicated a measurable increase in HPFP replacements before 100,000 km in affected batches, while UK DVSA MOT data shows low emissions failure rates thanks to robust SCR/DPF design. Fuel quality and oil specification adherence make HPFP longevity critical.
Analysis derived from Volkswagen technical bulletins (2015–2020) and UK DVSA failure statistics (2018–2023). 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 DNUC is generally robust when maintained correctly. Early units (pre-2018) have a known HPFP wear issue, but post-revision engines are more durable. Using EN 590 diesel and VW 507 00 oil at 15,000 km intervals greatly improves longevity. The timing chain is front-mounted and low-risk compared to older VW diesels.
Main issues include HPFP wear (especially pre-2018), AdBlue system warnings, EGR cooler leaks, and turbo actuator calibration drift. These are documented in Volkswagen service bulletins. Emissions hardware is otherwise reliable if driven with occasional highway use to enable full DPF regeneration.
The DNUC powered the Golf Mk7 (2015–2020), Passat B8 (2015–2020), and Tiguan Mk2 (2016–2020) as the 2.0 TDI 150. It was also used in Škoda Octavia Mk3 and SEAT Ateca under VAG group sharing. All meet Euro 6b and include AdBlue/SCR systems.
Yes. Stage 1 ECU remaps typically yield +20–30 kW (180–190 PS) safely, as the internals are strong. However, tuning increases HPFP and turbo stress—especially on pre-2018 engines. Supporting upgrades (oil cooler, intercooler) are recommended for sustained performance or towing.
Excellent. In a Golf 2.0 TDI 150, expect ~5.0 L/100km (city) and ~3.8 L/100km (highway), or ~56 mpg UK combined. Real-world mixed driving typically returns 50–60 mpg UK. Economy depends on AdBlue system health and driving style—short trips reduce efficiency due to frequent regenerations.
Yes. Like all modern VW engines, the DNUC is an interference design. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain has low failure rates with proper oil maintenance.
Volkswagen mandates VW 507 00 (5W-30) low-ash synthetic oil. This is critical for DPF and HPFP protection. Never substitute with 504 00 or generic ACEA C3 oils. Change every 15,000 km or 12 months, whichever comes first.
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