37351900 Removing and installing automatic transmission

WM 373519 Removing and installing automatic transmission

Tools









Technical values





Preliminary work

WARNING

Burns and scalding through hot components and fluids

-> Allow vehicle to cool down before beginning work

1. Disconnect battery. -> 270619 Removing and installing battery - section on "Removing" 27061900 Removing and installing battery
2. Remove rear wall cover. -> 555919 Removing and installing rear wall cover - section on "Removing" 555919 Removing and Installing Rear Wall Cover
3. Remove the engine-compartment lid. -> 557819 Removing and installing engine compartment lid - section on "Removing"
4. Unscrew fastening nuts for restraining cables and remove restraining cables from cross member.
5. Retaining device 9624/3 must be screwed to cross member. Then turn spindle upwards and support engine.





Special tool

6. Remove the starter. -> 276019 Removing and installing starter - section on "Removing" Service and Repair
7. Raise the vehicle at the prescribed jacking points. -> 400000 Lifting the vehicle
8. Remove wheels. -> 440519 Removing and installing wheel - section on "Removing" 44051900 Removing and installing wheel
9. Remove rear silencer. -> 263319 Removing and installing rear silencer - section on "Removing" Service and Repair
10. Remove support plate. -> 421419 Removing and installing support plate - section on "Removing" 42141900 Removing and installing support plate

Removing automatic transmission

Removing converter bolts

1. Turn crankshaft to the extent that one of the U4, U5 or U6 bores in the belt pulley is aligned with the centring bore in the crankcase.

Information

- The crankshaft is fixed in a defined position by inserting the fixing pin.

- If the fixing pin can not be inserted, check the correct positioning of the belt pulley in relation to the crankcase.

2. Insert locating pins (short) 9595/1 through the belt pulley in the crankcase housing bore.





Fix crankshaft

3. Insert assembly aid 9596 into starter opening.





Special tool 9596 in starter opening

4. Unscrew converter fastening screws with 6mm hexagon socket through the openings -arrows- in the assembly aid 9596.
5. Pull locating pins (short) 9595/1 out of the belt pulley.
6. Turn crankshaft by 120° so that one of the U4, U5 or U6 bores in the belt pulley is aligned with the centring bore in the crankcase.

Information

- The crankshaft is fixed in a defined position by inserting the fixing pin.

- If the fixing pin can not be inserted, check the correct positioning of the belt pulley in relation to the crankcase.

7. Insert locating pins (short) 9595/1 through the belt pulley in the crankcase housing bore.





Fix crankshaft

8. Unscrew converter fastening screws with 6mm hexagon socket through the openings -arrows- in the assembly aid 9596.
9. Pull locating pins (short) 9595/1 out of the belt pulley.
10. Turn crankshaft by 120° so that one of the U4, U5 or U6 bores in the belt pulley is aligned with the centring bore in the crankcase.

Information

- The crankshaft is fixed in a defined position by inserting the fixing pin.

- If the fixing pin can not be inserted, check the correct positioning of the belt pulley in relation to the crankcase.

11. Insert locating pins (short) 9595/1 through the belt pulley in the crankcase housing bore.





Fix crankshaft

12. Unscrew converter fastening screws with 6mm hexagon socket through the openings -arrows- in the assembly aid 9596.
13. Unscrew support for positive crankcase ventilation line on engine transport eyebolt.





Fastening screw

14. Push locating pins (long) 9595/1 through the opening in the transmission housing to prevent the transformer from falling out.





Fasten converter

Disassembly work

1. Pull vacuum line off the change-over valve.





Vacuum line

2. Unclip vent line on engine transport eyebolt.





Retaining clip

3. Loosen fastening screws between anti-roll bar and rear axle carrier side panel and fold anti-roll bar forward.





Anti-roll bar

4. Remove the cross member





Cross member

Information

Protect drive shafts against mechanical damage (e.g. with a rubber hose which has been cut open).

5. Remove drive shafts at transmission side. To do this, unscrew the six hexagon socket head bolts joining each drive shaft and transmission flange. Counter at the brake disc or activate the parking brake to avoid simultaneous turning.





Drive shaft

6. Lever selector cable off the ball pin and disengage from support bracket.





Selector cable

7. Turn connector of transmission socket anticlockwise and pull off.





Releasing connector

8. Disconnect the plug connection for the multi-function switch.





Plug

9. Unscrew retaining screw between the transmission and the coolant pipe.





Retaining screw

10. Clamp shut coolant hoses (flow and return sides) with hose clamp 3094.





Clamping shut coolant hoses

11. Unscrew fastening screws between transmission and mount for exhaust system and remove mount for exhaust system.





Fastening screws

12. Place collection pan for coolant under the transmission.
13. Unscrew fastening screw between ATF cooler and coolant line and pull coolant line out of ATF cooler.





Coolant line

14. Unscrew fastening screw between ATF cooler and coolant line and pull coolant line out of ATF cooler.





Coolant line

Removing automatic transmission

DANGER

If the supports are folded down, the vehicle will roll off the platform lift when it is lowered.

-> Ensure that the platform is prevented from lowering.
-> Remove supports before lowering.

Information

When pulling out the automatic transmission, ensure that the transmission support has already been loosened.

1. Place transmission jack under transmission and fasten fixing strap.
2. Unscrew fastening screws between the transmission and the transmission support.





Transmission support

Information

The fastening nuts of the transmission support must never be loosened at the hydraulic mount because otherwise the transmission brackets will be damaged.

3. Unscrew fastening screws between the body and the hydraulic mount -arrow-.





Transmission support





4. Unscrew fastening screws -1 to 7- and pull out transmission to the rear and downward.





Fastening transmission engine

Installing automatic transmission

DANGER

If the supports are folded down, the vehicle will roll off the platform lift when it is lowered.

-> Ensure that the platform is prevented from lowering.
-> Remove supports before lowering.

1. Run in transmission and screw in fastening screws -1 to 7-.





Fastening transmission engine





Information

In order to install the right-hand transmission support with hydraulic mount, the automatic transmission must be pushed towards the left.

2. Install right transmission support with hydraulic mount.





3. Install left transmission support with hydraulic mount.





4. Remove transmission jack.

Assembly work

1. Insert coolant pipe with new O-ring in ATF cooler and screw in fastening screw.





Coolant line





2. Insert coolant pipe with new O-ring in ATF cooler and screw in fastening screw.





Coolant line





3. Install exhaust system mount and tighten fastening screws between transmission and exhaust system mount.





Fastening screws





4. Hose clamp 3094 must be removed from coolant pipes (flow and return sides).
5. Screw in retaining screw between the transmission and the coolant pipe.





Retaining screw





6. Connect the plug connection for the multi-function switch.





Plug

7. Plug in transmission socket plug and turn clockwise up to the stop.





Locking plug

8. Engage selector cable in support bracket and push onto ball journals.





Selector cable

9. Fit drive shafts at transmission side. To do this, screw in the six hexagon socket head bolts joining each drive shaft and transmission flange and tighten screws. Counter at the brake disc or activate the parking brake to avoid simultaneous turning.





Drive shaft





10. Install cross member.





Cross member





11. Screw in fastening screws between anti-roll bar and rear axle carrier side member.





Anti-roll bar





12. Clip in vent line on engine transport eyebolt.





Clipping in line

13. Push vacuum pipe onto switch-over valve.





Vacuum line

Install converter screw connection

1. Pull fixing pins (long) 9595/1 out of the opening in the transmission housing.





Fasten converter

2. Screw on support for positive crankcase ventilation line to the engine transport eyebolt.





Fastening screw





3. Screw in converter fastening screws with 6mm hexagon socket through the openings in the assembly aid 9596.





4. Pull fixing pins (short) 9595/1 out of the belt pulley.
5. Turn crankshaft by 120° so that one of the U4, U5 or U6 bores in the belt pulley is aligned with the centring bore in the crankcase.

Information

- The crankshaft is fixed in a defined position by inserting the fixing pin.

- If the fixing pin can not be inserted, check the correct positioning of the belt pulley in relation to the crankcase.

6. Insert fixing pins (short) 9595/1 through the belt pulley in the crankcase housing bore.





Fix crankshaft

7. Screw in converter fastening screws with 6mm hexagon socket through the openings in the assembly aid 9596.





8. Pull fixing pins (short) 9595/1 out of the belt pulley.
9. Turn crankshaft by 120° so that one of the U4, U5 or U6 bores in the belt pulley is aligned with the centring bore in the crankcase.

Information

- The crankshaft is fixed in a defined position by inserting the fixing pin.

- If the fixing pin can not be inserted, check the correct positioning of the belt pulley in relation to the crankcase.

10. Insert fixing pins (short) 9595/1 through the belt pulley in the crankcase housing bore.





Fix crankshaft

11. Screw in converter fastening screws with 6mm hexagon socket through the openings in the assembly aid 9596.





12. Pull fixing pins (short) 9595/1 out of the belt pulley.
13. Remove assembly aid 9596 from the starter opening.





Special tool 9596 in starter opening

Subsequent work

1. Retaining device 9624/1 must be removed from the cross member.





Special tool

2. Fit restraining cables to cross member.





3. Install support plate. -> 421419 Removing and installing support plate - section on "installing" 42141900 Removing and installing support plate
4. Install rear silencers. -> 263319 Removing and installing rear silencer - section on "Installing" Service and Repair
5. Mount wheels. -> 440519 Removing and installing wheel - section on "Installing" 44051900 Removing and installing wheel
6. Lower the vehicle.
7. Install the starter. -> 276019 Removing and installing starter - section on "Installing" Service and Repair
8. Install the engine-compartment lid. -> 557819 Removing and installing engine compartment lid - section on "Installing"
9. Install rear wall cover. -> 555919 Removing and installing rear wall cover - section on "Installing" 555919 Removing and Installing Rear Wall Cover
10. Connect the battery. -> 270619 Removing and installing battery - section on "Installing" 27061900 Removing and installing battery
11. Bleed the cooling system. -> 193817 Draining and topping up coolant 193817 Draining and filling in coolant
12. Check and top up the ATF. -> 370235 Checking and topping up ATF 370235 Checking and Topping Up ATF
13. Adjust the selector lever cable as described under "Installing selector lever cable". -> 37151900 Removing and installing selector lever cable - section on "Installing" 37151900 Removing and installing selector lever cable