The Vauxhall B14NEH is a 1,399 cc, inline‑three turbo‑petrol engine produced between 2020 and 2024. It features direct fuel injection, a single twin — scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 107 kW (145 PS) and 235 Nm of torque, providing responsive low‑rpm performance and efficient urban drivability.
Fitted to models such as the Corsa F, Crossland, and Grandland, including the 1.4 Turbo 145 variants, the B14NEH was enginee…
All production years (2020–2024) meet Euro 6d standards .
The Vauxhall B14NEH is a 1,399 cc inline‑three turbo‑petrol engineered for subcompact and compact SUV platforms (2020–2024). It combines Bosch HDEV6 direct injection with a twin-scroll turbocharger to deliver strong low-end torque and smooth operation. Designed to meet Euro 6d emissions standards, it balances urban agility with regulatory compliance and fuel efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,399 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.0 mm × 81.3 mm | |
Power output | 107 kW (145 PS) | |
Torque | 235 Nm @ 1,750–4,000 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single twin-scroll turbo (Honeywell) | |
Timing system | Chain (front‑mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 105 kg |
The Vauxhall B14NEH was used across Vauxhall's Corsa F, Crossland, and Grandland platforms with transverse mounting and shared with Peugeot and Citroën under Stellantis collaboration. This engine received platform-specific adaptations—revised engine mounts in the Grandland and modified exhaust manifolds in the Corsa F—and from 2022 the HPFP and camshaft updates improved reliability, creating minor service part interchange limits. 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 B14NEH offers strong torque and excellent fuel economy, but early models (2020–2021) had HPFP cam lobe wear concerns under aggressive driving. Post-2022 revisions improved durability. With regular oil changes using GM dexos1 Gen 3 and moderate driving, well-maintained examples can exceed 180,000 km reliably.
Top issues include high-pressure fuel pump cam lobe wear in pre-2022 engines, GPF clogging from short trips, turbo wastegate rattle, and intake valve carbon buildup. These are documented in Vauxhall SIB 21-063 and TIS procedures. Most are preventable with proper oil, fuel, and driving habits.
The 1.4 Turbo 145 (B14NEH) powered the Corsa F (2020–2024), Crossland (2020–2023), and Grandland (2020–2024). It was also used in Opel equivalents and shared architecture with Peugeot/Citroën 1.2 PureTech 130 under the Stellantis alliance.
Aftermarket ECU tuning is common on the B-14-NEH 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.
Excellent for its class. In a Corsa F 1.4 Turbo, expect ~5.3 L/100km combined (53 mpg UK). Highway driving can achieve ~4.5 L/100km (63 mpg UK), while city use may rise to ~6.6 L/100km (43 mpg UK), depending on traffic and driving style.
Yes. The B14NEH is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain is generally robust if serviced correctly with proper oil.
Vauxhall specifies GM dexos1 Gen 3 0W-20 synthetic oil. This low-SAPS formulation is critical for protecting the HPFP cam lobe, turbo, and GPF. Oil changes every 15,000 km (or annually) are essential—extended intervals risk pump wear and aftertreatment damage.
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Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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