The Vauxhall ZD3 202 is a 1,997 cc, inline‑four turbocharged diesel engine produced between 2013 and 2021. It features common‑rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC) with four valves per cylinder. In standard form it delivers 100 kW (136 PS) and 320 Nm of torque, offering strong low‑end pull with refined operation.
Fitted to models such as the Astra K, Insignia B, and Mokka X, the ZD3 202 was engineered for compact h…
All production years 2013–2021 meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/8765).
The Vauxhall ZD3 202 is a 1,997 cc inline‑four turbocharged diesel engineered for compact and mid‑size vehicles (2013–2021). It combines Bosch common‑rail injection with a single variable‑geometry turbocharger to deliver responsive low‑rpm torque and urban efficiency. Designed to meet Euro 6b emissions standards, it integrates AdBlue-based SCR technology alongside DPF and EGR for stringent NOx control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,997 cc | |
Fuel type | Diesel (EN 590) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 100 kW (136 PS) @ 3,750 rpm | |
Torque | 320 Nm @ 1,750–2,500 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6b | |
Compression ratio | 16.0:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Single variable‑geometry turbo (Honeywell or BorgWarner) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | DEXOS2 5W‑30 (ACEA C3) | |
Dry weight | 148 kg |
The Vauxhall ZD3 202 was used across Vauxhall's D2XX and E2XX platforms with transverse mounting and shared with Opel and Peugeot/Citroën under the PSA/Stellantis alliance. This engine received platform-specific adaptations—revised engine mounts in the Mokka X and updated cooling ducting in the Insignia B—and from 2017 the updated AdBlue dosing strategy per TSB 12‑045, creating minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.
The ZD3 202's primary reliability risk is AdBlue dosing valve clogging due to urea crystallisation, with elevated incidence in urban or short-trip usage. Vauxhall internal field data from 2019 indicated recurring SCR-related warranty claims for vehicles with high short-trip ratios, while UK DVSA data shows minimal DPF-related MOT failures due to robust regeneration logic. Infrequent highway use and delayed AdBlue refills increase deposit formation, making driving pattern and fluid quality critical.
Analysis derived from Vauxhall technical bulletins (2013–2021) and UK DVSA failure statistics (2018–2024). 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 ZD3 202 is generally robust, but early models (2013–2016) had AdBlue dosing valve concerns. Post-2017 revisions significantly improved SCR reliability. With correct DEXOS2 5W-30 oil, timely AdBlue refills, and occasional highway driving, the engine can exceed 200,000 km without major issues.
The main issues are AdBlue dosing valve clogging (pre-2017), DPF saturation from short trips, EGR cooler leaks, and occasional HPFP wear. All are documented in Vauxhall service bulletins and repair manuals.
The ZD3 202 powers the Astra K (2015–2021), Insignia B (2017–2020), and Mokka X (2016–2019) in 136 PS form. It is shared with Opel and Peugeot/Citroën as part of the Stellantis diesel family.
Yes—ECU remaps typically yield +20–30 kW safely on stock hardware due to conservative factory calibration. However, tuning increases thermal load on the turbo, HPFP, and SCR system, so supporting upgrades may be needed for sustained high-load use.
Official WLTP combined is ~4.5 L/100km (63 mpg UK). Real-world mixed driving typically achieves 5.2–6.2 L/100km (45–54 mpg UK), depending on driving style, AdBlue consumption, and DPF regeneration cycles.
Yes. Like all modern DOHC engines, the ZD3 202 is an interference design. Timing chain failure (though rare due to robust design) could cause piston-to-valve contact.
Vauxhall mandates DEXOS2 5W‑30 (ACEA C3) synthetic oil. This low-SAPS oil protects the DPF, SCR catalyst, and HPFP. Never use older DEXOS1 or non-approved 10W‑40 oils.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Vehicle Certification Agency (VCA)
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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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