2.0 TSI / TFSI vs 1.2 Dualjet and 1.2 VVT: which engine is more reliable?

According to our risk index, the 1.2 Dualjet and 1.2 VVT carries less risk than the 2.0 TSI / TFSI: 23/100 (low risk) versus 54/100 (high risk). The 2.0 TSI / TFSI has 2 documented serious faults, the main one being «High oil consumption»; the 1.2 Dualjet and 1.2 VVT has no documented serious faults.

Risk index

2.0 TSI / TFSI

High risk · 2 serious faults

Risk index

1.2 Dualjet and 1.2 VVT

Low risk · 0 serious faults

Lower risk

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

Reviewed on 27 September 202616 sources How we work

Is the 2.0 TSI / TFSI reliable?

It depends above all on the generation. The earliest units (2008-2012, without Valvelift) have more oil consumption complaints and somewhat more chain and tensioner wear; from 2012 the Valvelift design reduced oil consumption but kept carbon build-up on the intake valves as a weak point until, around 2016, supplementary indirect injection was added. The thermostat housing with the integrated water pump leaks coolant in several generations.^{[1][2][3][4][5]}

See the 5 of the 2.0 TSI / TFSI faults

Is the 1.2 Dualjet and 1.2 VVT reliable?

The Suzuki 1.2 VVT and 1.2 Dualjet (K12B/K12C/K12M) is a naturally aspirated petrol engine with a timing chain and indirect injection, fitted since 2008 to the Splash, Swift, Ignis and Baleno, with an SHVS mild-hybrid variant since 2016. It is reliable: there is no serious documented fault with the engine block itself; the main points are a clutch that wears out sooner than expected on some cars and two SHVS recalls that have already been resolved.^{[6][7][8][9][10]}

See the 5 of the 1.2 Dualjet and 1.2 VVT faults

Side-by-side comparison

Comparison of 2.0 TSI / TFSI and 1.2 Dualjet and 1.2 VVT
Item	2.0 TSI / TFSI	1.2 Dualjet and 1.2 VVT
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	1,984 cm³	—
Timing	Chain	Chain
Power	170–320 hp	82–92 hp
Production	since 2008^[1][11]	since 2008^[6][7]
Reliability
Risk index (what is it?)	54High risk	23Low risk
Documented faults	5	5
Of high or critical severity	2	0
Worst severity	Critical severity	Medium severity
Main faults	High severity: High oil consumption Critical severity: Timing chain and tensioner wear Medium severity: Carbon build-up on the intake valves	Medium severity: Clutch: premature wear and clutch cable anchor failure Medium severity: SHVS mild-hybrid system: recalls for the starter generator belt and software Medium severity: Water pump pulley fixing (2013-2014): recall
Most expensive documented repair	up to €4,000High oil consumptionPublished figure^[12]	No reliable data
Which versions to buy
BuyRecommended versions	2.0 TSI/TFSI Gen 3B / evo, with added indirect injection (2016 onwards, 190-320 hp)^[1][5][13]	1.2 VVT 86-92 hp (K12B, one injector per cylinder, 2008-2013)^[9] 1.2 Dualjet non-hybrid 89-91 hp (K12B/K12C, dual injector, 2013-2020)^[10][14][15] 1.2 Dualjet SHVS mild hybrid 82-90 hp (K12C/K12D, since 2016)^[10]
With cautionVersions to be cautious about	2.0 TSI/TFSI Gen 1, without Valvelift (2008-2012, 170-220 hp)^{[2][3][13][16]} 2.0 TSI/TFSI Gen 2/3, with Valvelift and direct injection only (2012-2016, 180-230 hp)^[2][3][13]	None
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

2.0 TSI / TFSI

See the 43 models with the 2.0 TSI / TFSI

1.2 Dualjet and 1.2 VVT

See the 7 models with the 1.2 Dualjet and 1.2 VVT

Other comparisons

With the 2.0 TSI / TFSI

With the 1.2 Dualjet and 1.2 VVT

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Sources

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

Volkswagen EA888 engineWikipedia (inglés) · Other source · consulted 26 September 2026
Fiabilité Volkswagen (datos de propietarios por modelo)fiches-auto.fr · Reliability study · consulted 26 September 2026 · in French
Fiabilité Audi (datos de propietarios por modelo)fiches-auto.fr · Reliability study · consulted 26 September 2026 · in French
Motores TFSI: características, ventajas e inconvenientesAutofácil · Motoring press · published 18 May 2020 · consulted 26 September 2026 · in Spanish
Motor 2.0 TFSI 190 CV (ficha técnica)km77 · Technical documentation · published 13 May 2015 · consulted 26 September 2026 · in Spanish
Suzuki motor KWikipedia · Other source · consulted 27 September 2026 · in Spanish
Suzuki K engineWikipedia · Other source · consulted 27 September 2026
Suzuki Swift (NZ) – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Suzuki Splash (2008–2014) – Bekannte Probleme & KrankheitenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Suzuki Ignis (MF, ab 2016) – Bekannte Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
Audi TTWikipedia (inglés) · Other source · consulted 26 September 2026
Tu coche quema aceite: 6 señales de alarma y la solución definitiva para salvar tu motorAutopista.es · Motoring press · published 19 June 2026 · consulted 26 September 2026 · in Spanish
Témoignages fiabilité Audifiches-auto.fr · Owners' forum · consulted 26 September 2026 · in French
Suzuki Ignis : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Suzuki Swift 2 : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
Témoignages fiabilité Volkswagenfiches-auto.fr · Owners' forum · consulted 26 September 2026 · in French