Removal & Installation

WARNING: This page is about a different car, the 2002 BMW Z3, 2001 BMW Z3, 2000 BMW Z3, and 1999 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After completion of work, check transmission oil level. See SERVICING - M/T article.

NOTE: On vehicles with ASC+T, the throttle assembly and/or the expansion tank on the master brake cylinder can become damaged when the transmission is lowered.

Remove throttle assembly (ASC+T). See THROTTLE BODY.

Disconnect battery. See DISCONNECTING AND CONNECTING BATTERY.

Remove exhaust system. See REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (Z3 M54).

Unflange propeller shaft from transmission and tie up to one side. See DRIVE SHAFT .

Remove retainer (1). See Fig 1 . Withdraw selector rod (3) from selector linkage joint and remove shims (2). Upon installation, apply thin coat of grease to selector rod.

Fig 1: Withdrawing Selector Rod From Selector Linkage

G00382293

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Relieve clutch slave cylinder slowly, as otherwise air will be sucked in via the sealing sleeve.

Release nuts, remove clutch slave cylinder. See Fig 2 . Pressure line remains connected. Upon installation, tighten nuts to specification. See TORQUE SPECIFICATIONS .

Fig 2: Removing Clutch Slave Cylinder

G00382294

Courtesy of BMW OF NORTH AMERICA, INC.

Pull wires off reverse-gear switch. Detach oxygen-sensor plug from bracket. See Fig 3 .

Fig 3: Locating Reverse-Gear Switch Plug

G00382290

Courtesy of BMW OF NORTH AMERICA, INC.

Remove cross tube. See Fig 4 .

Fig 4: Removing Cross Tube

G00382295

Courtesy of BMW OF NORTH AMERICA, INC.

Support transmission with a workshop hoist. See Fig 5 . Unfasten screws and remove cross member with rubber mount. Lower workshop hoist. Upon installation, tighten screws to specification. See TORQUE SPECIFICATIONS .

Fig 5: Removing Cross Member

G00382296

Courtesy of BMW OF NORTH AMERICA, INC.

Use a screwdriver to lift out spring (1) from the lug (2) on the housing and swivel upwards. See Fig 6 . Pull out shaft. Upon installation, apply thin coat of grease to bearing pin.

Fig 6: Levering Out Spring

G00374668

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not allow transmission to hang on transmission input shaft when removing and installing, as the clutch disc will be deformed.

Support transmission with a workshop hoist. Unfasten screws. See Fig 7 . Pull transmission downwards and remove. Upon installation, always fit screws with washers. Tighten screws to specification. See TORQUE SPECIFICATIONS .

Fig 7: Locating Transmission Mounting Screws

G00374671

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: pay attention to guide sleeves (1, 2), replace if necessary. See Fig 8 . Ensure correct position of cover plate.

Fig 8: Checking Dowel Sleeves

G00374647

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: remove and clean release unit and release lever and grease appropriate points.

Installation: Check lubrication of transmission input shaft for sticky consistency. See Fig 9 . Replace clutch disk if grease is sticky. Check clutch disk for friction rust in taper splines and replace if necessary. Mechanically remove old grease and lining abrasion from the taper splines of the clutch disk (with a cloth). Clean and grease taper grooves and guide pin of transmission input shaft.

Fig 9: Checking Lubrication Of Transmission Input Shaft

G00374648

Courtesy of BMW OF NORTH AMERICA, INC.

To complete installation, reverse removal procedure.