Automatic transmission

Removing and refitting the gearbox

~1min read

Dépose-repose de la boîte de vitesses
Fig. 4

REMOVAL AND REFITTING

  • Remove the engine-gearbox-subframe assembly (see operation in the 'ENGINE' section).
  • Remove (Fig. 4):
  • the bolts (1),
  • the starter motor (2),
  • the cover (3),
  • the torque converter bolts,
  • the bolts (4),
  • the connecting bracket (5),
  • the gearbox bolts (6) and (7),
  • the bolts (8),
  • the connecting bracket (9).
  • Separate the engine-gearbox assembly from the subframe.
  • Position a hydraulic support jack under the gearbox.
  • Remove the gearbox bolts (10) and (11).
  • Separate the gearbox from the engine.
de couple pour l'empêcher de tomber.Secure the torque converter to prevent it from falling out.

To refit, reverse the removal procedure, observing the following points:

Dépose-repose de la boîte de vitesses
Fig. 5

  • always replace all self-locking nuts or bolts,
  • lightly grease the crankshaft splines at the torque converter with multi-purpose grease,
  • check the torque converter fitting height (Fig. 5),
  • fill and check the gearbox oil level if it was drained,
  • read the fault memory and clear it if necessary,
  • when replacing or overhauling the gearbox, a gearbox relearn procedure must be carried out.

Test yourself

A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.