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    2000 Toyota Avalon 3.0L EFI DOHC 6cyl

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    BMW Coupes and Sedans 1970-1988 Repair Guide

    Transmission

    Print

    REMOVAL & INSTALLATION



    4-Cylinder Engines
    1600, 2000 AND 2002 MODELS
    1. From inside the car, lift up the rubber boot to the shift lever. Raise the foam rubber ring and unsnap the circlip at the base of the shifter. Then, pull the shifter from the socket. Take care not to lose the shims which take up the clearance in the shifter socket under the circlip.
    2.  
    3. Raise the hood. Drain the cooling system into a suitable container. Disconnect the negative battery cable.
    4.  


    CAUTION
    When draining coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze, and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

    1. Remove the retaining bolts at the top of the transmission which secure the assembly to the engine body.
    2.  
    3. Jack up the front of the vehicle and place jackstands beneath the front jacking points. Place blocks behind the rear wheels and make sure that the parking brake is firmly applied.
    4.  


    CAUTION
    Test the stability of the supports before climbing under the car.

    1. Position a floor jack or transmission stand securely under the transmission. Place the jack under the center of the assembly. Lift the jack enough to touch the transmission, but not enough to lift it.
    2.  
    3. Remove the drain plug from the transmission and drain the contents into a drain pan for inspection. Check the fluid for metal particles. Clean and replace the drain plug.
    4.  
    5. Disconnect the exhaust pipe bracket from the back of the transmission. Disconnect the head pipe from the exhaust manifold.
    6.  
    7. Disconnect the driveshaft from the transmission at the flexible giubo coupling leaving the coupling attached to the driveshaft. Discard the old locknuts. Check the condition of the giubo and replace if excessively cracked or torn.
    8.  
    9. Remove the 2 bolts which retain the driveshaft center support bearing housing to the underbody. Push the driveshaft downward and away from the centering pin on the transmission.
    10.  
    11. Using an Allen wrench, loosen the set screw and drive out the retaining pin from the shift linkage.
    12.  
    13. On 1600 and 2000 models, detach the clutch linkage return spring. Push the retainer downward and remove the pushrod toward the front of the vehicle.
    14.  
    15. On 2002 and 2002Tii models, disconnect the slave cylinder from the throwout lever by lifting out the retaining ring, slipping off the rubber collar, unsnapping the circlip, and withdrawing the slave cylinder forward.
    16.  

    Mark the position of the torsional retainer.

    1. Loosen the bolts for the transmission support bracket. Remove the bolts which retain the flywheel inspection cover to the transmission and remove the cover.
    2.  
    3. Place a wooden block beneath the oil pan between the pan and front crossmember to support the engine.
    4.  
    5. Loosen the speedometer cable set bolt and disconnect the speedometer. Disconnect the reverse light wire leads. Remove the transmission support crossmember.
    6.  
    7. Turn the front wheels to the full right direction. The transmission may now be removed by pulling straight out toward the rear of the vehicle. When the transmission is clear of the pressure plate, carefully lower the jack and transmission to the ground.
    8.  

    To install:
    1. Reverse the above procedure to install, using the following installation notes:
      1. When hooking up the clutch linkage on 1600 and 2000 models, adjust the linkage as outlined under Clutch Linkage Adjustment.
      2.  
      3. When hooking up the shift linkage, first drive in the retaining pin and then secure it with the Allen head setscrew.
      4.  
      5. When hooking up the driveshaft, check the free-play of the centering bearing and pack it with chassis grease, as necessary. Use new locknuts to install the flexible coupling.
      6.  
      7. When installing the center support for the driveshaft, preload the bearing housing, a distance of 0.08 inches (2mm) to the front. Tightened the bolts after the transmission is installed.
      8.  
      9. When connecting the exhaust pipe support bracket, the bracket must lie tension-free against the head pipe, or severe engine vibration may result.
      10.  
      11. When installing the shift lever, fill the ball socket with chassis grease. Use shims beneath the circlip to obtain a tight fit.
      12.  
      13. Tighten the transmission-to-engine bolts to 18 ft. lbs. (23 Nm) for the small bolts), 34 ft. lbs. (44 Nm) for the large bolts.
      14.  
      15. Remember to fill the transmission to the bottom of the filler plug hole with SAE 80 gearbox oil.
      16.  
      17. Do not forget to fill the cooling system with anti-freeze and connect the negative ground cable.
      18.  

    2.  

    318i AND 320i MODELS
    1. From inside the car, lift up the boot around the shift lever. Raise the foam rubber ring and unsnap the circlip at the base of the shifter. Then, pull out the shifter from its socket. Take care not to lose the shims which take up the clearance in the shifter socket under the circlip.
    2.  
    3. Raise the hood. Drain the cooling system into a suitable container. Disconnect the negative battery cable.
    4.  
    5. On 320i models, remove the retaining bolts at the top of the transmission which secure the assembly to the engine body. Swing up the bracket mounted to the top left bolt.
    6.  
    7. Raise the front of the vehicle and place jackstands beneath the front jacking points. Place blocks behind the rear wheels and make sure that the parking brake is firmly applied.
    8.  


    CAUTION
    Test the stability of the supports before climbing under the car.

    1. Position a floor jack or transmission stand securely under the transmission. Place the jack under the center of the assembly. Lift the jack enough to touch the transmission, but not enough to lift it.
    2.  
    3. Drain the transmission of gear oil.
    4.  
    5. Disconnect the exhaust system support at the rear of the transmission.
    6.  
    7. Detach the exhaust pipe at the manifold.
    8.  
    9. Remove the driveshaft at the transmission by pulling out the bolts from the rear of the giubo coupling (the coupling remains attached to the driveshaft).
    10.  
    11. Remove the heat shield. Remove the bolts for the center bearing bracket, and pull the bracket downward. Bend the driveshaft downward and pull it out of the bearing journal.
    12.  
    13. Remove the bolt and disconnect the speedometer drive cable. Disconnect the reverse light switch wire, and pull the wire out of the transmission.
    14.  
    15. Remove the 2 Allen bolts at the top and pull the console off the transmission.
    16.  
    17. Disconnect the gearshift selector rod by pulling off the circlip, removing the washer and pulling the rod off the pin.
    18.  
    19. Detach the clutch slave cylinder bracket at the front of the transmission, remove the mounting bolts from the slave cylinder mounting, and remove the slave cylinder.
    20.  
    21. Remove the flywheel housing cover.
    22.  
    23. Detach the crossmember by removing the nuts attaching it to the body at either end. On 318i models, remove all front mounting bolts. Remove the 3 remaining front mounting bolts on the 320i, and pull the transmission out toward the rear and lower the jack.
    24.  

    To install:
    1. Install the transmission under the vehicle and align it into position. Install the crossmember.
    2.  
    3. Install the flywheel cover. Install 2 of the top transmission-to-engine bolts to retain the transmission.
    4.  
    5. Attach the clutch slave cylinder and mounting bracket. Install the gear selector rod and install the retaining circlip.
    6.  
    7. Connect the speedometer drive cable and then continue the installation in reverse order, noting the following points:
      1. Front mounting bolts are tightened to 18-19 ft. lbs. (23-24 Nm) on the 318i model transmissions, 34-37 ft. lbs (44-48 Nm) on the 320i transmissions. Tighten the crossmember rubber mounts to 31-35 ft. lbs. (40-45 Nm).
      2.  
      3. On the 318i, the console has self-locking bolts which must be replaced.
      4.  
      5. When reinstalling the clutch slave cylinder, make sure the bleeder screw faces downward.
      6.  
      7. When installing the driveshaft center support bearing, preload it forward a distance of 0.08 inches (2mm) on 320i, 0.08-0.1 inches (2-4mm) on 318i models.
      8.  
      9. Replace the locknuts on the driveshaft coupling with new locknuts, and tighten the nuts only, not the bolts, to 31-35 ft. lbs. (40-45 Nm).
      10.  
      11. Inspect the gasket at the joint between the exhaust manifold and pipe and replace it if necessary.
      12.  
      13. When reattaching the exhaust system support at the rear, leave the attaching nut/bolt slightly loose. Loosen the 2 nuts/bolts attaching the support via slots to the transmission. Push the support toward the exhaust pipe until all tension is removed and then secure nuts and bolts.
      14.  
      15. Do not forget to fill the transmission with new gear oil, as well as the cooling system.
      16.  

    8.  

    6-Cylinder Models

    EXCEPT 1983-84 533i AND 633CSi; 1982-84 733i; 1985-88 3 SERIES; ALL 535i, 635CSi, 735i, M5 AND M6 MODELS

    1. Remove the exhaust system. Drain the transmission gear oil.
    2.  
    3. Remove the circlip and washer at the selector rod and disengage the rod at the transmission.
    4.  
    5. Remove the boot surrounding the gearshift lever. With a pointed object such as a pick tool, release the circlip at the bottom of the gearshift lever and pull the lever upward and out of the transmission. Lubricate the nylon bushings at the bottom of the lever mechanism.
    6.  
    7. Remove the 3 bolts from the giubo coupling at the front of the driveshaft. Leaving the nuts/bolts attached to the driveshaft.
    8.  
    9. Remove the exhaust heat shield. Remove the mounting bolts and remove the center bearing support bracket. Bend the driveshaft downward at the front and slide the spline out of the center bearing.
    10.  
    11. Support the transmission securely with a floorjack and wooden block.
    12.  
    13. Remove the attaching bolt and pull out the speedometer cable. Disconnect the reverse light harness and pull the wire out of the clips on the transmission.
    14.  
    15. Loosen the connection to the rubber bushing at the transmission, remove the mounting nuts at either end, and remove the crossmember.
    16.  
    17. On 633CSi models, lower the transmission to the front axle carrier. Disconnect the mount for the clutch hydraulic line at the front of the transmission.
    18.  
    19. Then, on all models, unscrew the mounting nuts and detach the clutch slave cylinder (with the line connected).
    20.  
    21. Remove the retaining nuts at the clutch housing and separate the transmission and clutch housing.
    22.  
    23. Pull the gearbox toward the rear of the vehicle and lower.
    24.  

    To install:
    1. Position the gearbox under the vehicle and move into position. Install the mounting nuts at the clutch housing.
    2.  
    3. Attach the clutch slave cylinder to the transmission.
    4.  
    5. Install the crossmember and rubber mounts. Install the speedometer cable and connect the wire to the reverse light switch.
    6.  
    7. Install the heat shield and the mounting nuts for the center bearing carrier.
    8.  
    9. Complete the installation, keeping the following points in mind:
      1. Use the slave cylinder to move the clutch throw-out arm to the correct position. Align the throw-out bearing. Grease the guide sleeve and groove in the throw-out bearing.
      2.  
      3. Put the transmission into gear before installing.
      4.  
      5. Make sure, when installing the clutch slave cylinder, that the hose connection faces downward.
      6.  
      7. Preload the center bearing 0.08 inches (2mm) toward the front.
      8.  
      9. When tightening the flexible giubo coupling, hold the bolt heads and tighten only the nuts to 75 ft. lbs. (97 Nm). Use new locknuts. Tighten the transmission-to-engine bolts to 16-17 ft. lbs. (21-22 Nm) for 5 Series transmissions or 31-35 ft. lbs. (40-45 Nm) for all other transmissions. Tighten the bolt for the rubber bushing on the crossmember to 18 ft. lbs. (23 Nm)
      10.  

    10.  

    1985-88 3 SERIES MODELS

    See Figures 1 through 23

    1. Raise the car and support it securely on jackstands. Remove the entire exhaust system. Remove the crossbrace and heat shield.
    2.  



    Click image to see an enlarged view

    Fig. Fig. 1: Support the transmission with a piece of wood and a floor or transmission jack



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    Fig. Fig. 2: Unfasten the reverse light harness



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    Fig. Fig. 3: Use a Torx® socket to remove the retaining bolt for the flywheel sensors. Mark each sensor location



    Click image to see an enlarged view

    Fig. Fig. 4: Slide the flywheel sensor out. If the end is dirty, be sure to clean it before installation



    Click image to see an enlarged view

    Fig. Fig. 5: Loosen the collar at the center of the driveshaft



    Click image to see an enlarged view

    Fig. Fig. 6: Paint alignment marks on the center driveshaft bracket



    Click image to see an enlarged view

    Fig. Fig. 7: Remove the bolts securing the center driveshaft bracket



    Click image to see an enlarged view

    Fig. Fig. 8: Lower and separate the driveshaft sections



    Click image to see an enlarged view

    Fig. Fig. 9: Loosen the nuts and bolts attaching the rubber giubo to the transmission



    Click image to see an enlarged view

    Fig. Fig. 10: Carefully pry the rubber giubo from the transmission



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    Fig. Fig. 11: Notice that once the rubber giubo is separated from the transmission, it remains attached to the driveshaft



    Click image to see an enlarged view

    Fig. Fig. 12: Remove the retaining bolts securing the slave cylinder to the transmission



    Click image to see an enlarged view

    Fig. Fig. 13: Slide the slave cylinder out. It is not necessary to remove the slave cylinder fluid line



    Click image to see an enlarged view

    Fig. Fig. 14: Remove the Torx® bolts attaching the transmission to the engine



    Click image to see an enlarged view

    Fig. Fig. 15: Do not forget to remove the small bolts at the side of the transmission, where it mounts to the engine



    Click image to see an enlarged view

    Fig. Fig. 16: Remove the circlip securing the shift rod to the shift linkage, then slide it out



    Click image to see an enlarged view

    Fig. Fig. 17: To completely remove the linkage rod, remove the clip above the transmission and unfasten the rod



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    Fig. Fig. 18: Remove the exhaust bracket attached to the transmission



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    Fig. Fig. 19: Paint alignment marks on the rear transmission bracket for ease of reinstallation



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    Fig. Fig. 20: Remove the retainer nuts securing this bracket to the vehicle underside



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    Fig. Fig. 21: Carefully separate the transmission from the engine



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    Fig. Fig. 22: Before installing the slave cylinder, apply grease to the rod end



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    Fig. Fig. 23: Bleed the slave cylinder before lowering the vehicle

    1. On the 325iX, remove the transfer case as outlined in this section.
    2.  
    3. Hold the locknuts on the front of the flexible coupler with one wrench, and remove bolts from the rear. Some models have a vibration damper on the coupler. This damper is mounted on the transmission output flange with bolts that are pressed into the damper. On these models, unscrew and remove the nuts located behind the damper.
    4.  
    5. Loosen the threaded sleeve/collar on the driveshaft. Use a special tool such as BMW 261040 or equivalent to hold the splined portion of the shaft while turning the sleeve.
    6.  
    7. Remove the mounting bolts and remove the center driveshaft mount. Then, bend the driveshaft down at the center and remove from off the transmission output flange. Keep the sections of the driveshaft from pulling apart and suspend it from the car with wire.
    8.  
    9. Remove the retainer and washer, and pull out the shift selector rod.
    10.  
    11. Use a hex head wrench to remove the 2 self-locking bolts that retain the shift rod bracket at the rear of the transmission and remove the bracket. Detach the shift arm, using a prytool to lift the spring clip up off the boss on the case. Then, pull out the shift shaft pin.
    12.  
    13. Unscrew and remove the clutch slave cylinder and support the hydraulic line connected.
    14.  
    15. The transmission incorporates sending units for flywheel rotating speed and position. Remove the heat shield that protects these from exhaust heat. paint identification marks on each sensor and remove the retaining bolt for each sending unit.
    16.  

    The speed sending unit, which has no identifying ring goes in the bore on the right, and the reference mark sending unit, which has a marking ring, goes in the bore on the left. If the sending units are installed in reverse order, the engine will not run.

    1. Pull these units out of the flywheel housing.
    2.  
    3. Disconnect the wiring connector at the reverse light switch and pull out the harness.
    4.  
    5. With the transmission supported underneath in a secure manner, remove the mounting bolts and crossmember holding the rear of the transmission to the body. Then, lower the transmission onto the front axle carrier
    6.  
    7. Using a Torx® socket, remove the Torx® bolts holding the transmission flywheel housing to the engine at the front. Pull the transmission rearward to slide the input shaft out of the clutch disc and lower the transmission and remove it from the vehicle.
    8.  

    To install:
    1. Install the transmission in position under the car and install the retaining bolts.
    2.  
    3. Install the crossmember. Connect the wiring to to the reverse light switch.
    4.  
    5. Install the sending units into the transmission.
    6.  
    7. Install the clutch slave cylinder and install the shift shaft and bracket.
    8.  
    9. Install the center driveshaft mount and complete the installation, keeping the following points in mind:
      1. Coat the input shaft splines and flywheel housing guide pins with a light coating of a grease such as Microlube GL 261® or equivalent.
      2.  
      3. Make sure the front mounting bolts are installed with their washers. Tighten them to 46-58 ft. lbs. (60-75 Nm).
      4.  
      5. Before installing the 2 sending units for flywheel position and speed, make sure the faces are free of either grease or dirt and coat with a light coating of Molykote Long-term 2® or equivalent grease. Inspect the O-rings and replace if cut, cracked, crushed, or stretched.
      6.  
      7. When installing the shift rod bracket at the rear of the transmission, use new self-locking bolts and make sure the bracket is level before tightening. Tighten the shift rod bracket bolts to 16 ft. lbs. (21 Nm), except on the M3, which uses an aluminum bracket. On the M3, tighten these bolts to 8 ft. lbs. (10 Nm).
      8.  
      9. Install the clutch slave cylinder with the bleed screw downward.
      10.  
      11. When installing the driveshaft center bearing, preload it forward 0.1-0.2 inches (4-6mm). Check the driveshaft alignment with an appropriate tool such as BMW 26 1 030. Replace the nuts and then tighten the center mount bolts to 16-17 ft. lb. (21-22 Nm).
      12.  
      13. Tighten the flexible giubo coupling bolts to 83-94 ft. lb. (108-122 Nm).
      14.  

    10.  

    1982 733i MODELS

    See Figure 24

    This procedure requires a special tool for clamping the flexible drive coupling.

    1. Remove the circlip and washer from the front end of the selector rod, and disconnect from the lower end of the shift lever.
    2.  
    3. Push up the dust cover, and with needle nose pliers or equivalent and remove the circlip which holds the gearshift lever in place. Lubricate the nylon bushing surrounding the socket with a permanent lubricant for reassembly.
    4.  
    5. Disconnect the reverse light harness near the gearshift lever. Remove the large circlip which surrounds the gearshift mount.
    6.  
    7. Drain the gear oil into a suitable container. Raise the car and support it on jackstands. Install the special tool (BMW 26 1 011 or equivalent) which clamps around the flexible giubo coupling. Then, unscrew the nuts on the forward side of the coupling Withdraw the bolts out the rear. This requires tightening the clamping tool until the bolts can be pulled out by hand.
    8.  
    9. Remove the web type crossmember located under the driveshaft. Then, loosen the mounting nuts for the center bearing bracket and detach it. Bend the driveshaft downward and pull it off the centering pin.
    10.  
    11. Support the transmission securely with a floor jack or transmission jack.
    12.  
    13. Remove the mounting nut from the crossmember rubber bushing, then the nuts and bolts from either end of the crossmember. Remove the crossmember.
    14.  
    15. Detach the exhaust bracket and remove it.
    16.  
    17. Detach the mounting bracket for the clutch slave cylinder hydraulic line. Remove the 2 mounting bolts and detach the slave cylinder. Detach the 4th gear switch wires, if so equipped.
    18.  
    19. Detach the transmission at the clutch housing and remove by pulling it toward the rear of the vehicle.
    20.  



    Click image to see an enlarged view

    Fig. Fig. 24: Pack the groove at the engine block with suitable grease before installing the transmission

    To install:
    1. Install the transmission in position under the vehicle and slide into the clutch housing. Install the mounting bolts. Attach the mounting bracket for the clutch slave cylinder and attach the slave cylinder.
    2.  
    3. Fasten the crossmember and reattach the exhaust system at the transmission.
    4.  
    5. Install the driveshaft into position.
    6.  
    7. Complete the installation, keeping the following points in mind:
      1. Use the clutch slave cylinder to put the release lever in position. Align the clutch bearing and grease the lubrication groove inside it with Molykote® BR2 750 or equivalent.
      2.  
      3. Put the transmission into gear prior to installation.
      4.  
      5. Install the guide sleeve into the bearing, then turn the output flange until the driveshaft slides into the drive plate. Then, remove the slave cylinder while mounting the transmission. Tighten transmission-to-clutch housing bolts to 54-59 ft. lbs. (70-77 Nm).
      6.  
      7. When installing the clutch slave cylinder, make sure the bleeder screw faces downward.
      8.  
      9. When remounting the exhaust system bracket, make sure there is no torsional strain on the exhaust system.
      10.  
      11. Preload the center driveshaft bearing toward the front of the car 0.08 inches (2mm).
      12.  
      13. When reassembling the flexible drive coupling, use new self-locking nuts. Leave the special tool compressed while installing the bolts. Hold the bolts in position and turn only the nuts.
      14.  
      15. Tighten the transmission mount-to-crossmember bolt to 36-40 ft. lbs. (47-52 Nm), and the crossmember-to-body nuts to 16-17 ft. lbs. (21-22 Nm).
      16.  
      17. When installing the shift lever, note that the tab on the damper plate nuts engage in the opening in the shift arm.
      18.  

    8.  

    1983-84 533i, 633CSi, AND 733i; ALL 535i MODELS
    1. Raise the car and support it securely. Disconnect and lower the exhaust system to provide clearance for transmission removal. Remove the exhaust heat shield brace and transmission heat shield.
    2.  
    3. Support the driveshaft and then unscrew the driveshaft giubo coupling at the rear of the transmission. Use a wrench on both the nut and the bolt.
    4.  
    5. Working at the front of the driveshaft center bearing, unfasten the screw-on type connector which attaches the driveshaft to the center bearing. Then, unbolt the center bearing mount. Bend the driveshaft down and pull it off the centering pin. If the car has a vibration damper, turn it and pull it back over the output flange before pulling the driveshaft off the guide pin. Suspend it from the car with wire.
    6.  
    7. Pull off the wires for the reverse light switch. Unscrew the passenger compartment console and disconnect it from the top of the transmission. Discard the hardware and purchase replacements.
    8.  
    9. Pull out the shifter locking clip, and disconnect the shift rod at the rear of the transmission. Take care to keep all the washers.
    10.  
    11. If the transmission is attached to the shift lever with a link arm, use a small prytool to lift the spring out of the holder on the bracket and raise the arm. Pull out the shift shaft bolt.
    12.  
    13. If the car has a flywheel housing cover, remove the mounting bolts and remove the cover.
    14.  
    15. If the vehicle is equipped with Digital Motor Electronics (DME) speed and reference mark sensors on the flywheel housing, they must be disconnected. Note their locations. Paint identification marks on each before removing.
    16.  

    The speed sensor goes in the upper bore. The reference mark sensor, which has a ring, goes in the lower bore. Check the O-rings for the sensors and install new ones if they are damaged.

    1. Support the transmission securely. Then, unbolt and remove the rear transmission crossmember.
    2.  
    3. Remove the upper and lower attaching nuts and remove the clutch slave cylinder.
    4.  
    5. Disconnect the reverse light harness.
    6.  
    7. Unscrew the Torx® bolts fastening the transmission to the bell housing
    8.  
    9. Pull the transmission rearward until the input shaft has disengaged from the clutch disc and lower and remove.
    10.  

    To install:
    1. To install the transmission, first put in gear. Insert the guide sleeve of the input shaft into the clutch pilot bearing carefully. Turn the output shaft to rotate the front of the input shaft until the splines line up and engages the clutch disc.
    2.  
    3. Install the remaining portions of the procedure in reverse order of removal, observing the following points:
      1. Make sure the arrows on the rear crossmember point forward.
      2.  
      3. Preload the center bearing mount forward 0.08-0.1 inches (2-4mm). On 7 Series models and 6 Series cars with no integral clutch housing, preload the bearing to 0.1-0.2 inches (4-6mm).
      4.  
      5. In tightening the driveshaft screw on ring, use special Tool No. 26 1 040 or equivalent.
      6.  
      7. Use new locknuts when installing the driveshaft. Turn only the nut, holding the bolts stationary.
      8.  
      9. Make sure DME sensor faces are clean. Coat the sensor outside diameters with Molykote Long-term 2® or equivalent.
      10.  
      11. If the car has a shift arm, lubricate the bolt with a light layer of Molykote Long-term 2® or equivalent.
      12.  
      13. Observe these torque figures:

        Transmission to bell housing: 52-58 ft. lbs. (68-75 Nm)
         
        Top rear transmission bolts: 46-58 ft. lbs. (60-75 Nm)
         
        Center mount to body: 16-17 ft. lbs. (21-22 Nm)
         
        Front joint-to-transmission: 83-94 ft. lbs. (108-122 Nm)
         

      14.  

    4.  

    735i MODELS
    1. Disconnect the negative battery cable. Remove the exhaust system. Remove the attaching bolts and remove the heat shield mounted just to the rear of the transmission on the floorpan.
    2.  
    3. Support the transmission securely from underneath. Remove the crossmember that supports the transmission it at the rear.
    4.  
    5. Using wrenches on both the bolt heads and nuts, remove the bolts through the giubo coupler at the front of the driveshaft.
    6.  
    7. Remove the center driveshaft mounting bolts. Bend the driveshaft down at the center and pull it off the transmission output flange. Keep the sections of the driveshaft from pulling apart and suspend it from the car with wire.
    8.  
    9. Remove the shifter circlip and washer, then pull the shift selector rod off the transmission shift shaft. Disconnect the reverse light harness, nearby.
    10.  
    11. Lower the transmission slightly for access. Use a prytool to lift the spring out of the shaft holder on the bracket and then raise the arm. Pull out the shift shaft bolt.
    12.  
    13. Remove the upper and lower attaching nuts and remove the clutch slave cylinder and support.
    14.  
    15. Unscrew the bolts securing the transmission to the bell housing using a Torx® wrench. Make sure to retain the washer with each bolt. Pull the transmission rearward until the input shaft has disengaged from the clutch disc and then lower.
    16.  

    To install:
    1. Install the transmission in position under the car and install the retaining bolts.
    2.  
    3. Install the crossmember. Connect the wiring to to the reverse light switch.
    4.  
    5. Install the clutch slave cylinder and install the shift shaft and bracket.
    6.  
    7. Install the center driveshaft mount and complete the installation, keeping the following points in mind:
      1. Preload the center bearing mount forward 0.1-0.2 inches (4-6mm).
      2.  
      3. When reconnecting the nuts and bolt at the transmission giubo coupling, replace the nuts with new ones and turn only the nut, holding the bolts stationary.
      4.  
      5. When reconnecting the shift arm, lubricate the bolt with a light layer of Molykote Long-term 2® or equivalent and check the O-ring for crushing, cracks or cuts, replacing it if it is damaged.
      6.  
      7. When installing the clutch slave cylinder, make sure the bleeder screw faces downward.
      8.  
      9. Observe these torque figures:

        Center mount to body: 16-17 ft. lbs. (21-22 Nm)
         
        Front joint-to-transmission: 58 ft. lbs. (75 Nm)
         

      10.  

    8.  

     
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