1.5 VTi-TECH / T-GDI vs 1.0 SCe (B4D): which engine is more reliable?

According to our risk index, the 1.5 VTi-TECH / T-GDI carries less risk than the 1.0 SCe (B4D): 7/100 versus 23/100 (both low risk). The 1.5 VTi-TECH / T-GDI has no documented serious faults; the 1.0 SCe (B4D) has no documented serious faults.

Risk index

1.5 VTi-TECH / T-GDI

Low risk · 0 serious faults

Lower risk

Risk index

1.0 SCe (B4D)

Low risk · 0 serious faults

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

Reviewed on 30 October 202616 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 1.0 SCe (B4D) reliable?

The 1.0 SCe (B4D) is a simple, low-power (70-75 hp) naturally aspirated three-cylinder engine, with no serious or systemic faults documented. Its most cited issues are a clutch that can slip or judder when cold and, more occasionally on the Dacia Sandero II, higher-than-normal oil consumption; there is no pattern of faults in the chain-driven timing.^[7][8][9]

See the 4 of the 1.0 SCe (B4D) faults

Side-by-side comparison

Comparison of 1.5 VTi-TECH / T-GDI and 1.0 SCe (B4D)
Item	1.5 VTi-TECH / T-GDI	1.0 SCe (B4D)
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	—	999 cm³
Timing	Chain	Chain
Power	106–170 hp	70–75 hp
Production	since 2017^{[1][2][10][11][12]}	2014–2024^[13][14]
Reliability
Risk index (what is it?)	7Low risk	23Low risk
Documented faults	2	4
Of high or critical severity	0	0
Worst severity	Low severity	Medium 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)	Medium severity: Clutch that slips or judders, especially when cold Medium severity: Jerking, rough idle or warning light from sensors and ignition coils Low severity: Higher-than-normal oil consumption (especially on the Dacia Sandero II)
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]	None
With cautionVersions to be cautious about	1.5 T-GDI turbo 162 hp (GS61H, 2018-2024)^{[5][6][15][16]} 1.5 T-GDI turbo 170 hp (15FDE / 15FKE, from 2024)^[2]	1.0 SCe 70/75 (B4D, 2014-2024)^[7][8][9]
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

1.0 SCe (B4D)

Other comparisons

With the 1.5 VTi-TECH / T-GDI

With the 1.0 SCe (B4D)

Compare other engines

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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
Fiabilité et pannes de la Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Renault Twingo 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
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
List of Renault enginesWikipedia (inglés) · Other source · consulted 27 September 2026
Renault TwingoWikipedia (inglés) · Other source · consulted 27 September 2026
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