Removing And Installing/Replacing Selector Unit (A5S 360R/390R, A4S 200R)

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NOTE: Numbers in text refer to numbers in figures.

NOTE: After completing work, top up ATF level. Check/top up fluid level in automatic transmission. See CHECKING/TOPPING UP FLUID LEVEL IN AUTOMATIC TRANSMISSION (A5S 360R / 390R, A4S 200R / 310R) .

Remove and install transmission fluid sump. See REMOVING AND INSTALLING/SEALING OR REPLACING TRANSMISSION FLUID SUMP (A5S 360R / 390R, A4S 200R) .

Remove and install/replace transmission fluid screen. See REMOVING AND INSTALLING/REPLACING TRANSMISSION SCREEN (A5S 360R / 390R, A4S 200R) .

NOTE: As of model year 2001 (04/2000), the temperature sensor is integrated in the wiring harness.

Disconnect all plug connections on shift unit. See Fig 1 . Unclip temperature sensor (1) from holder.

Fig 1: Locating Plug Connections & Temperature Sensor

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Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

DO NOT release screws (1). See Fig 2 . Release all other screws, with outside Torx E8, on shift unit and remove shift unit.

Fig 2: Removing Shift Unit

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Courtesy of BMW OF NORTH AMERICA, INC.

Pull out seals (1), (2) and (3). See Fig 3 . Coat new seals with automatic transmission fluid and install.

Fig 3: Locating Seals

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation: blow out tapped holes with compressed air gun. Insert set screws (1) from seal set into tapped holes. See Fig 4 .

Fig 4: Inserting Set Screws

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Courtesy of BMW OF NORTH AMERICA, INC.

Length of screws: (1) = (2) = 68 mm, all others = 58 mm. Install shift unit with aid of both set screws and secure in place with screws. See Fig 5 . Remove both set screws. Tighten all screws until hand-tight. When tightening screws: follow sequence without fail. Tighten to specification. See TORQUE SPECIFICATIONS . Do not tighten screws (1) and (2) yet.

Fig 5: Locating Set Screws

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Courtesy of BMW OF NORTH AMERICA, INC.

Suspend guide (1) of transmission switch in detent spring (2). See Fig 6 . Journal (3) of detent disk must be located in groove (4) of slide valve.

Fig 6: Suspending Guide Of Transmission Switch In Detent Spring

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Courtesy of BMW OF NORTH AMERICA, INC.

Insert feeler gauge (1) between detent spring (2) and detent disk (3) and set gap of 0.80 mm by moving detent spring (2). See Fig 7 . Tighten down screws (4). See TORQUE SPECIFICATIONS .

Fig 7: Setting Gap Between Detent Spring & Detent Disk

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Courtesy of BMW OF NORTH AMERICA, INC.