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EDC vs 09G (Aisin): which gearbox is more reliable?

According to our risk index, the 09G (Aisin) gearbox carries less risk than the EDC gearbox: 14/100 (low risk) versus 38/100 (moderate risk). The EDC gearbox has 3 documented serious faults, the main one being «EDC gearbox overheating and safety neutral»; the 09G (Aisin) gearbox has 1 documented serious fault, the main one being «Total gearbox failure at low mileage, documented in an isolated case».

Risk index

EDC

38

Moderate risk · 3 serious faults

Risk index

09G (Aisin)

14

Low 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 09G (Aisin) gearbox reliable?

The 09G is the Aisin (TF-60SN) 6-speed torque converter automatic gearbox that the Volkswagen Group sold as the "Tiptronic" from 2003, in the Golf V/VI, Passat B6, Touran, Tiguan I and sister models from Seat, Škoda and Audi. It has a reputation for being tougher than the DSG and there are hardly any serious faults documented, although isolated cases of overheating or gearbox failure exist, and you should not rely on the "lifetime" oil.[3][4][5]

See the 2 of the 09G (Aisin) gearbox faults

Side-by-side comparison

Comparison of EDC and 09G (Aisin)
EDC09G (Aisin)
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)Torque converter automatic with planetary gearsets, 6-speed ("Tiptronic")
Productionsince 2010[1][6][7]2003–2018[3][4]
Reliability
Risk index (what is it?)38Moderate risk14Low 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: Total gearbox failure at low mileage, documented in an isolated case
  2. Medium severity: Gearbox overheating under demanding use, documented in an isolated case
Most expensive documented repairup to €2,100EDC gearbox overheating and safety neutralPublished figure[1][8]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][8]
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

09G (Aisin)

See the 10 models with the 09G (Aisin) gearbox

Other comparisons

With the EDC gearbox

With the 09G (Aisin) gearbox

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.

  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. Volkswagen Golf Mk5Wikipedia (en) · Other source · consulted 27 September 2026
  4. List of Aisin transmissionsWikipedia (en) · Other source · consulted 27 September 2026
  5. VW Passat B6 – Bekannte Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 25 September 2022 · 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. 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
  9. Fiabilité Audi A3 (2003-2012), pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  10. Fiabilité Volkswagen Golf V (2003-2008), pannes et témoignagesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French