1.5 VTi-TECH / T-GDI vs 2.2 Ecotec gasolina: which engine is more reliable?

According to our risk index, the 1.5 VTi-TECH / T-GDI carries less risk than the 2.2 Ecotec gasolina: 7/100 (low risk) versus 50/100 (high risk). The 1.5 VTi-TECH / T-GDI has no documented serious faults; the 2.2 Ecotec gasolina has 1 documented serious fault, the main one being «Stretched timing chain and seized tensioner on the 2.2 Ecotec».

Risk index

1.5 VTi-TECH / T-GDI

Low risk · 0 serious faults

Lower risk

Risk index

2.2 Ecotec gasolina

High risk · 1 serious fault

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

Reviewed on 2 November 202621 sources How we work

Is the 1.5 VTi-TECH / T-GDI reliable?

MG/SAIC's "1.5" covers two different engines: the naturally aspirated VTi-TECH (106 hp), the entry-level engine in the MG ZS, and the turbocharged T-GDI (162-170 hp), found only in the MG HS and as the petrol engine in its plug-in hybrids. Neither has well-documented engine faults in independent sources yet: the complaints published concern electronics, the automatic gearbox and finish, not the engine block.^{[1][2][3][4][5][6]}

See the 2 of the 1.5 VTi-TECH / T-GDI faults

Is the 2.2 Ecotec gasolina reliable?

This is the 2.2 petrol engine producing 147 to 155 hp in the Astra G, Zafira, Vectra and Signum. Its documented weak point is the timing chain, which stretches and can end in serious engine damage; the 2.2 Direct adds a high-pressure pump prone to failure.^[7][8][9]

See the 2 of the 2.2 Ecotec gasolina faults

Side-by-side comparison

Comparison of 1.5 VTi-TECH / T-GDI and 2.2 Ecotec gasolina
Item	1.5 VTi-TECH / T-GDI	2.2 Ecotec gasolina
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	—	2,198 cm³
Timing	Chain	Chain
Power	106–170 hp	147–155 hp
Production	since 2017^{[1][2][10][11][12]}	2000–2010^{[13][14][15][16]}
Reliability
Risk index (what is it?)	7Low risk	50High risk
Documented faults	2	2
Of high or critical severity	0	1
Worst severity	Low severity	Critical severity
Main faults	Low severity: Jerky or harsh automatic gearbox shifts when cold or at low speed (MG HS) Low severity: Electronic warnings and occasional sensor faults (MG HS)	Critical severity: Stretched timing chain and seized tensioner on the 2.2 Ecotec Medium severity: Faulty high-pressure pump or pressure regulator (P1191) on the 2.2 Direct
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	1.5 VTi-TECH naturally aspirated 106 hp (NSE / NSE Plus, from 2017)^[4] 1.5 VTi-TECH naturally aspirated 106 hp (15S4C, MG3, 2013–2024)^[17]	None
With cautionVersions to be cautious about	1.5 T-GDI turbo 162 hp (GS61H, 2018-2024)^{[5][6][18][19]} 1.5 T-GDI turbo 170 hp (15FDE / 15FKE, from 2024)^[2]	2.2 16V 147 hp (Z22SE, 2000-2005)^[7][8][20] 2.2 Direct 150-155 hp (Z22YH, 2003-2010)^{[7][8][9][21]}
AvoidVersions to avoid	None	None

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

1.5 VTi-TECH / T-GDI

2.2 Ecotec gasolina

Other comparisons

With the 1.5 VTi-TECH / T-GDI

With the 2.2 Ecotec gasolina

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Sources

Every fact on this page links to its source. If you find an error, let us know.

MG ZS (crossover)Wikipedia (inglés) · Other source · consulted 27 September 2026
MG HSWikipedia (inglés) · Other source · consulted 27 September 2026
Essai complet : MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du MG eHSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
MG HS PHEV: guía definitiva de problemas y soluciones del SUV, el híbrido enchufable más vendidoAutopista.es · Motoring press · published 10 November 2025 · consulted 27 September 2026 · in Spanish
PROTIPS febi 33044: tensor de cadena para los motores Opel 2.2 de gasolina (Z22YH y Z22SE)febi bilstein (Ferdinand Bilstein GmbH) · Technical documentation · published January 2019 · consulted 2 November 2026 · in German
Opel Vectra C: ProblemeGebrauchtwagenberater.de · Motoring press · consulted 2 November 2026 · in German
Opel Zafira B 2005-2014: Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 2 November 2026 · in German
MG HSWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
MG HSWikipedia (francés) · Other source · consulted 27 September 2026 · in French
List of General Motors enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Opel Astra GWikipedia (de) · Other source · consulted 2 November 2026 · in German
Opel Zafira AWikipedia (de) · Other source · consulted 2 November 2026 · in German
Opel Vectra CWikipedia (de) · Other source · consulted 2 November 2026 · in German
Opel Zafira BWikipedia (de) · Other source · consulted 2 November 2026 · in German
Témoignages de fiabilité MG (MG3 1.5 VTi-Tech 106 ch sin testimonios; solo los del híbrido de 2024)Fiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
MG – Common problems (llamadas a revisión de la UE y del Reino Unido)car-recalls.eu · Other source · consulted 30 October 2026
MG HS SUV (2019-2024) Exclusive 1.5T-GDI 5d: opinión de propietario (10 jun 2022)Parkers · Owners' forum · published 10 June 2022 · consulted 30 October 2026
Fiabilité Opel Zafira (1999-2005): pannes par moteurFiches-auto.fr · Owners' forum · consulted 2 November 2026 · in French
Blitz-Info: Opel Signum 2.2 L, año 2003-2004, motor Z22YH (testigo del motor encendido)Hella · Technical documentation · published 31 March 2006 · consulted 2 November 2026 · in German