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EDC vs Dualogic: which gearbox is more reliable?

According to our risk index, the Dualogic gearbox carries less risk than the EDC gearbox: 29/100 versus 38/100 (both moderate risk). The EDC gearbox has 3 documented serious faults, the main one being «EDC gearbox overheating and safety neutral»; the Dualogic gearbox has 1 documented serious fault, the main one being «Actuator or hydraulic pressure fault: the gearbox drops into neutral on its own or refuses gears».

Risk index

EDC

38

Moderate risk · 3 serious faults

Risk index

Dualogic

29

Moderate risk · 1 serious fault

Lower risk

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

10 sourcesHow we work

Is the EDC gearbox reliable?

The EDC covers several Renault dual-clutch gearboxes: the EDC6 (Getrag DC4 dry clutch on most entry-level engines, or DW6 wet clutch on higher-torque ones) and the wet-clutch EDC7, introduced in 2016 to fix the low-speed judder of the earlier unit. Many owners document early clutch wear, overheating that forces a safety neutral, and control electronics faults, especially on the EDC6.[1][2]

See the 4 of the EDC gearbox faults

Is the Dualogic gearbox reliable?

The Dualogic is the automated manual gearbox that Fiat has fitted since 2003 to models such as the 500, Panda, Grande Punto/Punto, Doblò and Qubo, and that Lancia sells as D.F.N. on the Ypsilon. It has no systemic fault acknowledged by the manufacturer, but there are recurring testimonies of jerking on every gearchange, clutches that wear out early, and actuator faults that make the gearbox drop into neutral on its own while driving.[3][4][5]

See the 2 of the Dualogic gearbox faults

Side-by-side comparison

Comparison of EDC and Dualogic
EDCDualogic
Technical data
TypeGearboxGearbox
Gearbox typeDual-clutch: EDC6 (6-speed; DC4 dry clutch on engines under 250 Nm, or DW6 wet clutch on higher-torque engines) and EDC7 (7-speed, wet clutch, internal code DW5)5-speed automated manual (AMT), single dry clutch, electrohydraulic actuation of the clutch and gear selection
Productionsince 2010[1][6][7]since 2003[3][8][9]
Reliability
Risk index (what is it?)38Moderate risk29Moderate risk
Documented faults42
Of high or critical severity31
Worst severityHigh severityHigh severity
Main faults
  1. High severity: EDC gearbox overheating and safety neutral
  2. High severity: Control electronics fault: "check gearbox" warning and loss of gears
  3. Medium severity: Premature dry clutch wear and low-speed judder (EDC6/DC4)
  1. High severity: Actuator or hydraulic pressure fault: the gearbox drops into neutral on its own or refuses gears
  2. Medium severity: Premature wear or breakage of the Dualogic clutch
Most expensive documented repairup to €2,100EDC gearbox overheating and safety neutralPublished figure[1][10]No reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • EDC6 (6-speed: DC4 dry or DW6 wet)[1][2]
  • EDC7 (7-speed, wet clutch, DW5)[2][10]
  • Dualogic 5-speed (2003-present)[4][5]
AvoidVersions to avoidNoneNone

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

Cars that each one is fitted to

EDC

See the 11 models with the EDC gearbox

Dualogic

See the 9 models with the Dualogic gearbox

Other comparisons

With the EDC gearbox

With the Dualogic gearbox

Compare other engines

That is the comparison you are viewing: change one of the two engines.

Sources

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

  1. Fiabilité de la boîte EDC : problèmes en série ?fiches-auto.fr · Technical documentation · published February 2020 · consulted 27 September 2026 · in French
  2. Essai Renault Scénic 4 dCi 110 EDC7 : le test du Scénic automatiqueL'Argus · Motoring press · published September 2016 · consulted 27 September 2026 · in French
  3. DualogicWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  4. Fiabilité et pannes de la Fiat 500Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiat 500 (ab 2007) – alle bekannten Probleme & KrankheitenGebrauchtwagenberater.de · Motoring press · published 24 November 2023 · consulted 27 September 2026 · in German
  6. Renault Scénic IIIWikipédia (fr) · Other source · consulted 27 September 2026 · in French
  7. Renault Clio IVWikipédia (fr) · Other source · consulted 27 September 2026 · in French
  8. SelespeedWikipedia (inglés) · Other source · consulted 27 September 2026
  9. Lancia YpsilonWikipedia (inglés) · Other source · consulted 27 September 2026
  10. FACUA alerta de la llamada a revisión de los Renault Megane IV GT por un problema en la caja de cambiosFACUA · Consumer association · published 26 April 2017 · consulted 27 September 2026 · in Spanish