24 00 031 Removing and installing transmission (AISIN)

WARNING: This page is about a different variant/trim than selected.

NOTE: After completion of work, CHECK TRANSMISSION OIL LEVEL .

IMPORTANT: Use only the approved OPERATING FLUID in this automatic transmission.

Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: An incorrectly adjusted gearshift mechanism can result in gear tooth meshing noises being transmitted to the passenger compartment.
Adjust SELECTOR LEVER .

WARNING: Danger to life!
Mount securing fixture for vehicle on vehicle hoist to prevent the vehicle from slipping off or tilting down.

Necessary preliminary work

Switch off ignition.
CLAMP off battery.
Remove AIR INTAKE SILENCER HOUSING .
Remove intake silencer housing gaiter.
Drain COOLANT .
Secure engine in INSTALLATION POSITION .
Lower FRONT AXLE SUPPORT .
Remove STARTER MOTOR .
REMOVE RUBBER MOUNTS FOR GEARBOX MOUNTING.
Remove LEFT output shaft.
Remove RIGHT output shaft.

N14 engine only

Release screws (1).

Release holder (2) from engine.

NOTE: Graphic similar.

Fig 1: Identifying Engine Holder And Screws

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Only on diesel engine (W16)

Slacken nut (1).

Release holder (2) from engine.

Fig 2: Identifying Engine Holder With Nut

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Unfasten hose clamps.

Disconnect coolant hoses (1) from oil cooler.

Fig 3: Identifying Coolant Hoses

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Disconnect multiple pin connectors (1/2) of EGS control unit.

Remove wiring harness.

Pay attention to routing of wiring harness.

NOTE: Graphic similar.
Engine shown removed.

Fig 4: Identifying Multiple Pin Connectors Of EGS Control Unit

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Release cable lock nut (1).

Tightening torque: 24 11 8AZ

Installation note:

Adjust SELECTOR LEVER .

NOTE: Graphic similar.

Fig 5: Identifying Cable Lock Nut

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Disconnect plug connector (1) from gear position switch.

Remove hose (2) from holder.

Slide cable retaining sleeve (3) in direction of arrow.

Remove cable upwards from holder.

Fig 6: Sliding Cable Retaining Sleeve

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Supporting transmission

Support gearbox with special tool 23 4 150 and 00 2 030 .

Secure transmission with tensioning strap (3).

Fig 7: Supporting Gearbox Using Special Tool (23 4 150 And 00 2 030)

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Release nut (1) through opening for starter.

Crank engine further and release remaining 5 nuts.

Screw connection, converter:

Tightening torque 24 11 21AZ .

Fig 8: Identifying Nut In Starter Opening

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Release bolts and remove transmission.

IMPORTANT: Transmission mounting bolts differ in length.

Note installation position.

Installing the wrong bolts may cause serious damage.

Tightening torque 24 11 4AZ .

Installation note:

Check that fitting sleeves are correctly fitted.

Replace damaged fitting sleeves.

Fig 9: Identifying Transmission Mounting Bolts

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