The Vauxhall Z22SE is a 2,198 cc, inline‑four petrol engine produced between 2002 and 2008. It features a dual overhead camshaft (DOHC) 16‑valve layout with sequential multi‑point fuel injection. In standard form it delivered 108 kW (147 PS) at 5,800 rpm and 205 Nm of torque at 4,000 rpm, providing responsive performance for mid — size applications.
Fitted to models such as the Vectra C, Signum, and Zafira B—including the Vectra 2.2i and Signum 2.2—the Z22SE was engineered…
Production years 2002–2008 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/7123).
The Vauxhall Z22SE is a 2,198 cc inline‑four petrol engine engineered for executive sedans, liftbacks, and MPVs (2002–2008). It combines DOHC 16‑valve architecture with sequential multi‑point fuel injection to deliver smooth, linear power and relaxed motorway performance. Designed to meet Euro 4 emissions standards, it balances everyday drivability with responsive acceleration.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,198 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 94.6 mm | |
Power output | 108 kW (147 PS) @ 5,800 rpm | |
Torque | 205 Nm @ 4,000 rpm | |
Fuel system | Sequential multi-point injection (Bosch Motronic ME7.4) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven DOHC | |
Oil type | Vauxhall GM‑LL‑A‑025 (SAE 5W‑30) | |
Dry weight | 132 kg |
The Vauxhall Z22SE was used across Vauxhall's Vectra C, Signum, and Zafira B platforms with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Signum and modified accessory drive layouts in the Vectra—and from 2005 the camshaft and tappet design was updated to address wear concerns, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The Z22SE's primary reliability risk is exhaust camshaft lobe wear, with elevated incidence in vehicles used in hot climates or under sustained high-load conditions. Vauxhall internal service data from 2006 indicated a notable rate of camshaft replacement before 140,000 km in affected fleets, while UK DVSA MOT records show increased emissions failures linked to misfires from valve train degradation. Extended oil change intervals and low-quality oil accelerate wear, making oil specification and service discipline critical.
Analysis derived from Vauxhall technical bulletins (2002–2008) and UK DVSA failure statistics (2010–2023). 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 Z22SE offers smooth performance but early models (2002–2004) are prone to camshaft lobe wear if not maintained properly. Later revisions (post-2005) with improved cam metallurgy are more robust. Regular oil changes with GM-LL-A-025 (5W-30) oil and avoiding sustained high-load driving greatly improve longevity.
Top issues include exhaust cam lobe/tappet wear, coolant leaks from the plastic thermostat housing, ignition coil failure, and vacuum leaks from brittle hoses. These are documented in Vauxhall service bulletins, especially TSB-04-11-03 for cam concerns.
The Z22SE was used in the Vectra C (2.2i, 2002–2008), Signum (2.2, 2003–2008), and Zafira B (2.2, 2005–2008). It was not used in Astra, Corsa, or Meriva models, which used smaller engines.
Yes. The Z22SE responds well to ECU remapping (+10–15 kW), performance exhausts, and cold-air intakes. The bottom end is robust for moderate gains, but head integrity should be monitored. Forced induction is uncommon and not recommended without internal upgrades.
Typical consumption is ~10.2 L/100km (city) and ~6.5 L/100km (highway), or about 33 mpg UK combined in a Vectra C 2.2i. Real-world figures range from 30–36 mpg (UK) depending on driving style and vehicle condition.
Yes. The Z22SE is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the chain design is generally reliable with proper maintenance.
Vauxhall specifies SAE 5W-30 synthetic oil meeting GM-LL-A-025 (or equivalent ACEA A3/B4). Change every 10,000 km or annually. Using correct oil is critical to prevent cam lobe wear, especially in pre-2005 engines.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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