The Vauxhall D 14 XFT is a 1,398 cc, inline‑four turbo‑petrol engine produced from 2020 onward. It features direct fuel injection, a single twin‑scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 230 Nm of torque, with variable valve timing enhancing responsiveness across the rev range.
Fitted to models such as the Astra K and Grandland, the D 14 XFT was engineered for compact‑car performance, offering brisk acceleration and refined highway cruising. Emissions compliance is achieved through gasoline particulate filtration (GPF) and precise engine management, meeting Euro 6d standards across all markets.
One documented concern is high‑pressure fuel pump (HPFP) wear under sustained high‑load conditions, highlighted in Vauxhall Service Bulletin 01‑22‑09. This is attributed to marginal lubricity in certain fuel batches and exacerbated by aggressive tuning or frequent short trips. Vauxhall recommends adherence to WLTP‑aligned service intervals and use of EN 228‑compliant fuel.
All production years (2020–present) meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/5679).
The Vauxhall D 14 XFT is a 1,398 cc inline‑four turbo‑petrol engineered for compact and mid‑size models (2020–present). It combines direct injection with a twin‑scroll turbocharger to deliver responsive mid‑range torque and efficient highway cruising. Designed to meet Euro 6d standards, it balances sporty performance with low emissions and fuel consumption.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,398 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.5 mm × 80.0 mm | |
| Power output | 110 kW (150 PS) | |
| Torque | 230 Nm @ 1,750–4,000 rpm | |
| Fuel system | Bosch HDP5 high‑pressure 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 | DEXOS2 (SAE 0W‑20) | |
| Dry weight | 115 kg |
The twin-scroll turbo provides strong mid-range pull ideal for mixed driving but demands strict adherence to 15,000 km or 12-month oil change intervals to protect the timing chain and turbo bearings. DEXOS2 (0W-20) oil is critical due to its low-SAPS formulation, which safeguards the gasoline particulate filter (GPF). Frequent short trips increase GPF soot loading; occasional highway runs (≥60 km/h for 15+ minutes) are recommended to trigger passive regeneration. The Bosch HDP5 fuel pump requires EN 228-compliant fuel with adequate lubricity—avoid low-cost or ethanol-heavy blends. No major timing chain recalls exist, but HPFP wear is noted in SIB 01 22 09 under high-load or poor-fuel conditions.
Oil Specs: Requires DEXOS2 (0W-20) specification (Vauxhall Owner Manual 2020+). Meets ACEA C5 and API SN standards.
Emissions: Euro 6d certification applies to all 2020–present models (VCA Type Approval #VCA/EMS/5679). Confirmed via RDE testing.
Power Ratings: Measured under UN ECE R85. Output verified on WLTP-compliant dyno per Vauxhall PT‑2023.
Vauxhall Technical Information System (TIS): Docs V4012, V4015, SIB 01 22 09
VCA Type Approval Database (VCA/EMS/5679)
EU Regulation (EU) 2017/1151 (WLTP)
The Vauxhall D 14 XFT was used across Vauxhall's EMP2 platform with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts in the Grandland and revised intake routing in the Astra K—and from 2022 the facelifted Astra adopted updated engine mounts and GPF substrate density, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil filler neck (Vauxhall TIS V4018). The 7th VIN digit indicates engine family ('G' for D 14 XFT). All units feature black plastic cam covers with integrated coil packs and a visible GPF in the exhaust manifold. Critical differentiation from earlier 1.4L NA engines: D 14 XFT has a turbocharger on the rear bank and a high-pressure fuel rail. Service parts are generally interchangeable across Astra and Grandland, but post-2022 GPF assemblies differ in substrate cell density per SIB 02 23 04.
The D 14 XFT's primary reliability risk is high-pressure fuel pump (HPFP) wear under marginal fuel conditions, with elevated incidence in high-mileage or frequently short-trip vehicles. Vauxhall internal data from 2023 indicated a small but notable uptick in HPFP replacements beyond 80,000 km, while UK DVSA records show minimal emissions-related MOT failures due to robust GPF control. Aggressive driving or poor fuel quality accelerates pump wear, making fuel specification and driving pattern critical.
Analysis derived from Vauxhall technical bulletins (2020–2024) and UK DVSA failure statistics (2020–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL D-14-XFT.
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DVLA: Engine Changes & MoT
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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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