The Vauxhall 30NE is a 1,297 cc, inline‑four petrol engine produced between 1982 and 1993. It features a single overhead camshaft (SOHC), 8‑valve layout with multi‑point fuel injection (Bosch L‑Jetronic or later Motronic). In standard form it delivered 55 kW (75 PS) at 5,600 rpm and 103 Nm of torque at 3,400 rpm, providing adequate urban performance with improved fuel control over carburetted predecessors.
Fitted primarily to the Astra Mk1 (T — Car) and Kadett E, the 30NE w…
Production years 1982–1991 meet UK national emissions standards; 1992–1993 models meet Euro 1 (VCA UK Type Approval #VCA/EMS/2345).
The Vauxhall 30NE is a 1,297 cc inline‑four petrol engine engineered for compact hatchbacks (1982–1993). It combines SOHC 8‑valve architecture with multi‑point fuel injection to deliver predictable urban performance and improved cold‑start behavior over carburetted engines. Designed to meet Euro 1 standards in final years, it represents Vauxhall’s transition to electronic engine management.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,297 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 77.8 mm × 68.0 mm | |
Power output | 55 kW (75 PS) @ 5,600 rpm | |
Torque | 103 Nm @ 3,400 rpm | |
Fuel system | Bosch L‑Jetronic / Motronic MPFI | |
Emissions standard | UK national (1982–1991); Euro 1 (1992–1993) | |
Compression ratio | 9.4:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt‑driven (interference design) | |
Oil type | Vauxhall GM‑L‑025 (SAE 10W‑40) | |
Dry weight | 92 kg |
The Vauxhall 30NE was used across Vauxhall's T-Car platform with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Kadett E and modified airbox routing in the Astra Mk1—and from 1990 the injector seals were upgraded to FKM material, creating minor service distinctions. All adaptations are documented in OEM technical bulletins.
The 30NE's primary reliability risk is fuel injector seal failure on pre-1990 builds, with elevated incidence in vehicles using modern E5/E10 petrol. Vauxhall internal quality reports from 1989 indicated a notable share of early engines requiring injector resealing before 100,000 km, while UK DVSA records show fuel vapour leaks as a recurring MOT advisory in neglected examples. Extended service intervals and ethanol-blended fuel increase risk, making seal replacement critical during major services.
Analysis derived from Vauxhall technical bulletins (1982–1993) and UK DVSA failure statistics (1995–2023). 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 30NE is mechanically simple and generally reliable if maintained properly. Early models (1982–1989) have known injector seal issues with modern petrol, but post-1990 revisions improved durability. Regular timing belt changes every 60,000 km and use of correct 10W‑40 oil are essential for longevity.
Top issues include fuel injector seal degradation (pre-1990), throttle position sensor drift, timing belt failure, and coolant leaks from plastic thermostat housing. These are documented in Vauxhall service bulletins and commonly observed in high-mileage examples.
The 30NE powered the Astra Mk1 (1982–1993) and Kadett E (1984–1991) as the 1.3i petrol. It was exclusive to these Vauxhall/Opel models and not licensed externally.
Minimal tuning potential. The 30NE’s low compression, SOHC head, and basic ECU limit gains. Mild improvements (+3–5 PS) are possible with induction and exhaust upgrades, but significant power increases require engine swaps. Most owners prioritize reliability over performance.
Good for its era. In an Astra Mk1 1.3i, expect ~7.8 L/100km (city) and ~5.6 L/100km (highway), or about 42 mpg UK combined. Real-world mixed driving typically yields 38–45 mpg (UK) when well-maintained and driven gently.
Yes. The 30NE is an interference engine. If the timing belt fails or skips, pistons can contact open valves, causing severe internal damage. This makes timely belt replacement every 60,000 km or 4 years absolutely critical.
Vauxhall specifies a 10W‑40 mineral or semi-synthetic oil meeting GM‑L‑025 (or ACEA A2/B2). Always change oil at 10,000–15,000 km intervals to prevent sludge and ensure proper timing component lubrication.
Comprehensive technical documentation and regulatory references
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VAUXHALL Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
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