Audi 3.0 TFSI V6 vs 1.2 16v: which engine is more reliable?

The Audi 3.0 TFSI V6 and the 1.2 16v tie on our risk index: 36/100 (moderate risk). The Audi 3.0 TFSI V6 has 2 documented serious faults, the main one being «Timing chain stretch and tensioner wear»; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».

Risk index

Audi 3.0 TFSI V6

Moderate risk · 2 serious faults

Risk index

1.2 16v

Moderate 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 9 October 202625 sources How we work

Is the Audi 3.0 TFSI V6 reliable?

The supercharged 3.0 TFSI (EA837, 2008-2018) has a reputation for reliability: Gebrauchtwagenberater sees no known problems in the A6 C7. What is documented is limited: thermostat and water pump leaks, a fuel rail recall campaign, chain wear in the first units, and carbon build-up. The turbocharged EA839 (from 2016) has no documented faults of its own yet.^{[1][2][3][4][5][6]}

See the 5 of the Audi 3.0 TFSI V6 faults

Is the 1.2 16v reliable?

The 1.2 16v (D4F) and its 8-valve predecessor, the D7F, are simple naturally aspirated engines, used for over two decades as the entry-level option in Renault and Dacia cars, with a reputation for reliability: the reliability pages consulted document no catastrophic failures and no oil consumption. The most-cited problems are ignition coils and sensors and, on higher-mileage cars, the head gasket.^{[7][8][9][10]}

See the 5 of the 1.2 16v faults

Side-by-side comparison

Comparison of Audi 3.0 TFSI V6 and 1.2 16v
Item	Audi 3.0 TFSI V6	1.2 16v
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	2,995 cm³	1,149 cm³
Timing	Chain	Timing belt (dry)
Power	272–450 hp	60–76 hp
Production	since 2008^{[11][12][13][14]}	2001–2020^{[15][16][17][18]}
Reliability
Risk index (what is it?)	36Moderate risk	36Moderate risk
Documented faults	5	5
Of high or critical severity	2	1
Worst severity	High severity	High severity
Main faults	High severity: Timing chain stretch and tensioner wear High severity: Fuel leak at the injection rails (2015 and 2019 campaigns) Medium severity: Leak at the thermostat housing and water pump	High severity: Damaged head gasket and coolant loss Medium severity: Ignition coil failure (misfires, engine warning light) Medium severity: Probe and sensor faults (crankshaft position, throttle body)
Most expensive documented repair	No reliable data	No reliable data
Which versions to buy
BuyRecommended versions	3.0 TFSI turbo (EA839: CZSE, DR, CWGD; 2016 onwards)^[6] 2.9 TFSI twin-turbo (EA839: DECA, DKMB; 2016 onwards)^[6][11]	1.2 16v 75/76 (D4F, 2001-2020)^{[7][8][9][10][19][20][21][22]} 1.2 16v 60 (D4F 708, Twingo I, 2004-2007)^[17]
With cautionVersions to be cautious about	3.0 TFSI 290 hp supercharged (CAJA, CGWA; 2008-2013)^[1][5][23] 3.0 TFSI 300/310 hp supercharged (CGWB, CGWD, CGXB, CTUA; 2010-2014)^[3][5][24] 3.0 TFSI 333 hp supercharged, direct injection (CAKA, CJTB, CTWA, CTUB; 2008-2015)^[2][3][23] 3.0 TFSI 333 hp evo supercharged with combined injection (CREC; 2014-2018)^{[4][5][24][25]} 3.0 TFSI 272 hp supercharged (CTUC, CTVA, CMUA, CJTC; 2010-2017)^[2] SQ5 3.0 TFSI 354 hp supercharged (2013-2017)^[2]	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

Audi 3.0 TFSI V6

See the 19 models with the Audi 3.0 TFSI V6

1.2 16v

See the 11 models with the 1.2 16v

Other comparisons

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With the 1.2 16v

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Sources

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

Audi A6 C7 4G 2011-2018 Probleme und SchwachstellenGebrauchtwagenberater · Motoring press · consulted 9 October 2026 · in German
Audi Q5: Probleme und SchwachstellenGebrauchtwagenberater · Motoring press · consulted 9 October 2026 · in German
Undichtigkeit im Einspritzsystem: Audi-Rückruf läuft bereitsÖAMTC · Consumer association · consulted 9 October 2026 · in German
Audi: Ersatz des KraftstoffverteilersÖAMTC · Consumer association · published 19 February 2019 · consulted 9 October 2026 · in German
Audi A6 C7: typische Probleme und Diagnose mit ODISKfz-Meisterbetrieb Dietrich (blog de taller) · Other source · consulted 9 October 2026 · in German
Audi A6 C8: Probleme und SchwachstellenGebrauchtwagenberater · Motoring press · consulted 9 October 2026 · in German
Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
List of Volkswagen Group petrol engines (EA837 y EA839)Wikipedia (inglés) · Other source · consulted 9 October 2026
Audi Técnica Motor 3.0 TFSI (2008)km77.com · Motoring press · consulted 9 October 2026 · in Spanish
Audi 3.0 TFSIAUTO BILD · Motoring press · published 27 June 2008 · consulted 9 October 2026 · in German
Used Audi A4 buying guide 2008-2015 (Mk4)Carbuyer · Motoring press · published 7 February 2019 · consulted 9 October 2026
Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia SanderoFiches-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
Gebrauchter Audi A6 und S6 C7 ZuverlässigkeitsleitfadenEuro Premium Parts (blog de recambista) · Other source · published 29 November 2025 · consulted 9 October 2026 · in German
DVSA – base de llamadas a revisión (R/2015/031 y R/2019/099)DVSA (Reino Unido) · Other source · consulted 9 October 2026
Audi A6 berlina 3.0 TFSI 333 CV quattro S tronic 7 vel. (2014-2017)km77.com · Motoring press · consulted 9 October 2026 · in Spanish