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DSG6 DQ250 vs EDC: which gearbox is more reliable?

According to our risk index, the DSG6 DQ250 gearbox carries less risk than the EDC gearbox: 36/100 versus 38/100 (both moderate risk). The DSG6 DQ250 gearbox has 1 documented serious fault, the main one being «Mechatronic unit failure: solenoid valves and temperature sensor»; the EDC gearbox has 3 documented serious faults, the main one being «EDC gearbox overheating and safety neutral».

Risk index

DSG6 DQ250

36

Moderate risk · 1 serious fault

Lower risk

Risk index

EDC

38

Moderate risk · 3 serious faults

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 DSG6 DQ250 gearbox reliable?

The DSG6 DQ250 (02E) is the Volkswagen Group's six-speed wet dual-clutch gearbox: the first DSG to enter series production, in 2003, and the one that for more than a decade equipped the sporty versions of the Golf, Passat, Tiguan, Scirocco, Octavia RS, Leon Cupra/FR and Audi A3/TT. It has a reputation for being considerably more reliable than the dry-clutch DQ200, although it is not free of faults: the mechatronic unit, clutch and dual-mass flywheel are its most commonly cited weak points.[1][2][3]

See the 3 of the DSG6 DQ250 gearbox faults

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.[4][5]

See the 4 of the EDC gearbox faults

Side-by-side comparison

Comparison of DSG6 DQ250 and EDC
DSG6 DQ250EDC
Technical data
TypeGearboxGearbox
Gearbox typeWet dual-clutch (oil bath), 6-speedDual-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)
Production2003–2023[1][2][3][6]since 2010[4][7][8]
Reliability
Risk index (what is it?)36Moderate risk38Moderate risk
Documented faults34
Of high or critical severity13
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Mechatronic unit failure: solenoid valves and temperature sensor
  2. Medium severity: Wet clutch pack wear: slipping and vibrations
  3. Medium severity: Dual-mass flywheel wear on the engines paired with the DQ250
  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)
Most expensive documented repairup to €3,100Mechatronic unit failure: solenoid valves and temperature sensorPublished figure[9]up to €2,100EDC gearbox overheating and safety neutralPublished figure[4][10]
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • EDC6 (6-speed: DC4 dry or DW6 wet)[4][5]
  • EDC7 (7-speed, wet clutch, DW5)[5][10]
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

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Sources

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

  1. Direct-shift gearboxWikipedia · Other source · consulted 27 September 2026
  2. VW, Skoda & Seat DSG Probleme: alle 6 und 7-Gang DQ GetriebeCarwiki · Technical documentation · consulted 27 September 2026 · in German
  3. DSG Gearboxes: Complete Guide to DQ200, DQ250, DQ381, DQ400e, DQ500, DL501 & DSG 6, 7 and 8 SpeedsSTR Performance · Technical documentation · consulted 27 September 2026
  4. Fiabilité de la boîte EDC : problèmes en série ?fiches-auto.fr · Technical documentation · published February 2020 · consulted 27 September 2026 · in French
  5. Essai Renault Scénic 4 dCi 110 EDC7 : le test du Scénic automatiqueL'Argus · Motoring press · published September 2016 · consulted 27 September 2026 · in French
  6. DirektschaltgetriebeWikipedia · Other source · consulted 27 September 2026 · in German
  7. Renault Scénic IIIWikipédia (fr) · Other source · consulted 27 September 2026 · in French
  8. Renault Clio IVWikipédia (fr) · Other source · consulted 27 September 2026 · in French
  9. Reparar DSG en España: Precios RealesTCA - Tu Cambio Automático · Technical documentation · published 2025 · consulted 27 September 2026 · in Spanish
  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