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01J

Multitronic 01J (1999-2007) gearbox: faults and reliability

Audi Multitronic (01J/0AW) version

With caution

It is the generation with the most documented control unit failures, jerking when pulling away and chain wear; it is only worth considering if the gearbox oil change history is verified, there are no stored fault codes and a cold road test shows no jerks or noises.[1][2]

Years
1999–2007
Power
No data
Faults that affect it
3
2 of high or critical severity
Cars that use it
4
in our database

5 sourcesHow we work

What changes in this version

The original multitronic code, with a six-plate multi-plate clutch and a maximum permissible torque of about 310 Nm according to English Wikipedia. It concentrates the control unit failures, jerking when pulling away and chain wear best documented by the sources consulted.[1]

Engine codes of this version: 01J.

Faults of the 01J gearbox

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Critical severityFrequency: CommonTransmissionWear of the variator chain and conesYes: the variator uses a chain of more than 1,000 links between two pairs of cones that wears with mileage, especially if the oil is not changed regularly. Gebrauchtwagenberater ties the gearbox's reputation to "numerous total failures"; Schaeffler/LuK sells a kit to repair the chain.
  2. 2High severityFrequency: CommonElectronicsControl unit (TCU) failure and limp modeYes: the multitronic control unit, especially in the 01J code (up to 2007), is one of its best-documented weak points. Overheating with oil seeping into the control unit causes fault warnings and limp mode and, if ignored, can end up damaging the gearbox itself.
  3. 3Medium severityFrequency: CommonClutchJerking and vibration when pulling away from cold (multi-plate clutch)Yes: with no torque converter, the multitronic pulls away using an electronic multi-plate clutch that can jerk or vibrate, especially when cold, if its plates are worn or the oil no longer has the right properties. It is one of the most cited fault symptoms of this gearbox.

Cars fitted with the 01J gearbox

Open each car to see all its faults with this engine and what to check before buying it.

Audi

Frequently asked questions

Is the 01J gearbox reliable?

Our verdict is “With caution”. It is the generation with the most documented control unit failures, jerking when pulling away and chain wear; it is only worth considering if the gearbox oil change history is verified, there are no stored fault codes and a cold road test shows no jerks or noises.[1][2]

What faults does the 01J gearbox have?

The documented ones that affect this version, by importance: wear of the variator chain and cones (critical severity), control unit (TCU) failure and limp mode (high severity) and jerking and vibration when pulling away from cold (multi-plate clutch) (medium severity).

Which cars use the 01J gearbox?

Audi A4 B6 (2000–2004), Audi A4 B7 (2004–2007), Audi A6 C5 (1999–2004) and Audi A6 C6 (2004–2011).[3][4][5]

Are you buying a car with the 01J gearbox?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

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. Typische Probleme & Haltbarkeit der MultitronicGebrauchtwagenberater · Motoring press · consulted 27 September 2026 · in German
  3. Audi A4Wikipedia · Other source · consulted 27 September 2026 · in Spanish
  4. Audi A6Wikipedia · Other source · consulted 27 September 2026 · in Spanish
  5. MultitronicWikipedia · Other source · consulted 27 September 2026 · in German