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Multitronic vs 7G-DCT: which gearbox is more reliable?

According to our risk index, the 7G-DCT gearbox carries less risk than the Multitronic gearbox: 36/100 (moderate risk) versus 64/100 (high risk). The Multitronic gearbox has 2 documented serious faults, the main one being «Wear of the variator chain and cones»; the 7G-DCT gearbox has 2 documented serious faults, the main one being «Incorrect oil level in the 7G-DCT: December 2020 campaign».

Risk index

Multitronic

64

High risk · 2 serious faults

Risk index

7G-DCT

36

Moderate risk · 2 serious faults

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 Multitronic gearbox reliable?

The multitronic is the continuously variable (CVT) automatic gearbox that Audi fitted, with front-wheel drive only, between 1999 and 2014: first the 01J code and, from 2007, the 0AW. It was fitted to the A4 from the B6, the A6 and the A5. Its reliability is limited - Gebrauchtwagenberater calls it Audi's "black sheep": the 01J concentrates control unit failures, jerking when pulling away and chain wear; the 0AW is notably more reliable, although it does not eliminate them entirely.[1][2][3]

See the 3 of the Multitronic gearbox faults

Is the 7G-DCT gearbox reliable?

The 7G-DCT is Mercedes-Benz's first dual-clutch gearbox: it has been fitted since 2012 to the A-Class (W176), B-Class (W246), CLA (C117) and GLA (X156); since 2018 its 8-speed evolution, the 8G-DCT, has been used in the second generation of those models (W177, W247, C118, H247). Owners report jerks when cold, clutch wear and, in a few cases, electronic faults with limp mode; there was a service campaign over an incorrect oil level on 2018-2020 units.[4][5][6][7]

See the 5 of the 7G-DCT gearbox faults

Side-by-side comparison

Comparison of Multitronic and 7G-DCT
Multitronic7G-DCT
Technical data
TypeGearboxGearbox
Gearbox typeContinuously variable transmission (CVT) with a link chain running between cones, with an electronically controlled multi-plate start-off clutch instead of a torque converterDual-clutch, 7-speed (7G-DCT) or 8-speed (8G-DCT)
Production1999–2014[1][2][3]since 2012[4][5]
Reliability
Risk index (what is it?)64High risk36Moderate risk
Documented faults35
Of high or critical severity22
Worst severityCritical severityHigh severity
Main faults
  1. Critical severity: Wear of the variator chain and cones
  2. High severity: Control unit (TCU) failure and limp mode
  3. Medium severity: Jerking and vibration when pulling away from cold (multi-plate clutch)
  1. High severity: Incorrect oil level in the 7G-DCT: December 2020 campaign
  2. High severity: Mechatronics or control unit failure: limp mode and loss of gears
  3. Medium severity: Jerks and hesitation when pulling away or manoeuvring at low speed
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • Multitronic 01J (1999-2007)[1][3]
  • Multitronic 0AW (2007-2014)[3]
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

Multitronic

See the 8 models with the Multitronic gearbox

7G-DCT

See the 8 models with the 7G-DCT gearbox

Other comparisons

With the Multitronic gearbox

With the 7G-DCT gearbox

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Sources

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

  1. MultitronicWikipedia · Other source · consulted 27 September 2026
  2. MultitronicWikipedia · Other source · consulted 27 September 2026 · in German
  3. Typische Probleme & Haltbarkeit der MultitronicGebrauchtwagenberater · Motoring press · consulted 27 September 2026 · in German
  4. Mercedes-Benz A-Class (W176)Wikipedia · Other source · consulted 27 September 2026
  5. Mercedes-Benz A-Class (W177)Wikipedia · Other source · consulted 27 September 2026
  6. Fiabilité Mercedes Classe A (2018) - pannesFiches-auto.fr · Technical documentation · consulted 27 September 2026 · in French
  7. Mercedes A-Klasse W177 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published April 2023 · consulted 27 September 2026 · in German
  8. Fiabilité Mercedes Classe A (2012-2017) - pannesFiches-auto.fr · Technical documentation · consulted 27 September 2026 · in French
  9. Fiabilité Mercedes CLA (2013-2019) - pannesFiches-auto.fr · Technical documentation · consulted 27 September 2026 · in French
  10. Fiabilité Mercedes GLA (2013-2019) - pannesFiches-auto.fr · Technical documentation · consulted 27 September 2026 · in French