Removal and installation the gearbox (BMW 5 Series E34)

Removal

Disconnect the ground cable from the battery.

Raise the car.

Remove the protective tray from the unit.

Remove the exhaust system.

Remove the exhaust system heat shield.



Unscrew the drive shaft disc from the gearbox. For a design with a built-in vibration damper, unscrew the nuts on the drive shaft disc.



Use a pipe wrench to loosen the threaded ring "arrow" in the middle of the cardan shaft by several turns.

Unscrew the middle support A of the propeller shaft.

Tilt the cardan shaft downwards and pull it out of the centering journal.

Caution: Tie up the cardan shaft, do not allow the joints to fall.

With the propeller shaft removed, disconnect the locking bracket 1 from the shift rod, remove the washers from both sides of the shift rod and pull out the rod.



Disconnect the reverse light switch wire from the rear of the gearbox.

Remove the clutch slave cylinder.

Note: Hydraulic lines remain connected.

Support the gearbox with a jack.



Remove the cross beam.

Lower the gearbox to the front axle beam.



Remove spring 1 from protrusion 2 on the body using a screwdriver and tilt it upward.

Pull out the support pin.



Loosen the gearbox bolts using socket wrenches.



Separate the gearbox from the engine and pull it out downwards with an assistant.

Installation

Check the clutch before installation.

Check the ease of movement of the clutch release bearing. Lubricate the bearing, for example, with Liqui Moly M-320. If noise was previously observed when the clutch was released during operation of the bearing, replace the release bearing.

Clean the splined connection of the input shaft and the centering journal and lightly lubricate with Moly plain bearing paste or spray with Moiy aerosol.

Engage any gear.

Raise the box and insert it into the clutch in a horizontal position. If the primary shaft does not enter the clutch disc, turn it by hand by the flange under the cardan shaft,

Tighten the gearbox mounting bolts on the engine.

Tightening torques, Nm



Raise the gearbox and secure it to the cross member with a bolt tightening torque of 25 Nm.

Install the clutch slave cylinder.

Insert the support pin, covering it with Molykore Longtherm 2.

Using a screwdriver, place spring 1 on spout 2.

Insert the shift rod. Place the washer on the pin and secure the shift rod with the lock washer.



Connect the reverse light switch wire.

Install the cardan shaft.

Install a heat-insulating screen.

Install the exhaust system.

Check the oil level in the gearbox.

Install the protective tray of the unit.

Connect the ground wire to the battery.