Final drive

In this manual: Final drive
General information on preservation measures — 1Body cavity sealing — 1Body corrosion protection — 1Body repair instructions — 1Support members — 1Luggage compartment floor — 1Wheel wells — 1Side frame and door pillars — 1Roof outer skin — 1Dash cowl — 1Front trim panel — 1Rear trim panel — 1Side panels — 1Front side doors — 1Rear side doors — 1Front lid — 1Rear lid — 1Other flaps — 1Body special tools — 1General information — 1Handling brake fluids — 1Brake testing and bleeding — 1Front brakes — 1Rear brakes — 1Master brake cylinder — 1Brake lines — 1Brake booster — 1Electrical components/wear indicator — 1Parking brake — 1Mechanical/hydraulic components — 1Electronic components — 1Brakes — 1Front brake — 1Pedal mounting block — 1Brake pedal with linkage — 1Clutch pedal with linkage — 1Accelerator pedal actuation — 1Pedals — 1Specified grease — 1Propeller shaft, general — 1Propeller shaft assembly — 1Center console assembly — 1Front propeller shaft — 1Propeller shaft — 1Propeller shaft complete — 1Front axle repair instructions — 1Front axle suspension — 1Front sub-frame — 1Struts with rubber mounts — 1Wheel bearings and stub axle — 1Spring strut — 1Spring with suspension — 1Stabilizer bar — 1Front axle gearbox — 1Output shaft — 1Front axle — 1General information on high temperature multi-purpose grease — 1Rear axle repair instructions — 1Final drive with cover — 1Final drive mounting — 1Output shafts — 1Rear sub-frame — 1Control arms and struts — 1Axle mounting — 1Wheel bearings — 1Shock absorber — 1With suspension — 1Stabilizer bar — 1Rear axle — 1General information on final drive oil — 1Approved final drive oils for front and rear axle final drives with and without limited slip or viscous coupling — 1Final drive oil for bmw m1 motorsport coupe — 1Operating fluids as of 11/2015 — 1Brake pad replacement reminder — 1Emissions maintenance reminder — 1Maintenance service reminder — 1Tire pressure monitor system reminder — 1Description — 1Troubleshooting — 1Ignition wires, spark plugs — 1Ignition coil — 1Electronic switching or control units — 1Preheating relay — 1Preheater plugs — 1Alternator with drive and mounting — 1Controller — 1Starter with mounting — 1Starter lead — 1Engine wiring loom — 1Oil pressure/oil temperature/oil gauge — 1Switches and relays — 1Engine electrical system — 1Cabin air filter — 1Cabin air filter applications — 1Operating fluids - air conditioning and heating — 1Air conditioner refrigerant — 1Refrigeration oil — 1Note, overview components climate control — 1Heater with operation — 1Auxiliary. heater with control elements — 1Nozzles and outlets — 1Microfilter — 1Air conditioning, leak detection — 1Ac housing/evaporator, switching elements — 1Compressor — 1Condenser and dryer with lines — 1Heating and air conditioning — 1Front axle repair instructions — 1Front axle suspension — 1Front sub-frame — 1Struts with rubber mounts — 1Wheel bearings and stub axle — 1Spring strut — 1Spring with suspension — 1Stabilizer bar — 1Front axle gearbox — 1Front axle — 1General information on high temperature multi-purpose grease — 1Integrated suspension systems repair instructions — 1Front control and suspension elements — 1Rear control and suspension elements — 1Electrical components — 1Electronic damping force adjustment — 1Integrated suspension systems — 1Approved hydraulic fluids — 1Rear axle repair instructions — 1Final drive — 1Final drive with cover — 1Final drive mounting — 1Output shafts — 1Rear sub-frame — 1Control arms and struts — 1Axle mounting — 1Wheel bearings — 1Shock absorber — 1Springs with suspension — 1Stabilizer bar — 1Rear axle — 1General information on final drive oil — 1Approved final drive oils for front and rear axle final drives with and without limited slip or viscous coupling — 1Final drive oil for bmw m1 motorsport coupe — 1Operating fluids as of 11/2015 — 1Electronic chassis alignment — 1Mechanical steering gear — 1Steering gear with servo unit — 1Steering arms, tie rods, steer. damper — 1Steering column — 1Steering wheel — 1Steering wheel for airbag — 1Pump and oil supply — 1Steering and wheel alignment — 1Wheels — 1Disc wheels (rims) — 1Tires — 1Wheels with tires — 1Tire mounting paste — 1Engine mounting — 1Transmission suspension, automatic. transmission — 1Engine and gearbox suspension — 1Transmission in general — 1Transmission case, oil sump — 1Extension housing, bearings, seal — 1Mechanical attachments — 1Hydr/el control components/elements — 1Oil pump — 1Shift valves, parking lock — 1Torque converter — 1Automatic transmission — 1Automatic transmission fluid for zf-transmission GA8HP45Z / GA8HP50Z / GA8HP70Z / GA8HP90Z / GA8P70H / GA8P75H / GA8HP75Z — 1General information on automatic transmission fluids — 1Approved automatic transmission fluids for initial fillings and correcting fluid levels — 1Checking transmission fluid level — 1Transmission fluid change intervals (if applicable) — 1Transfer case, general — 1Transfer box — 1Transmission shafts — 1Transfer box special tools — 1Transfer box in general (atc 45l) — 1Transmission in general — 1Bearing in housing, sealing ring — 1SELF-DIAGNOSTICS DTCS — 1
6steps
~36min
2/5difficulty
Done 0 of 6

REAR AXLE FINAL DRIVE: ASSIGNMENT TO MODEL SERIES

Suspension
Suspension
  • Removing and installing/replacing rear differential
  • Replacing shaft seal(s) for output shaft(s) in rear axle final drive

Removing and installing/replacing rear differential

Special tools required:

  • 33 5 206
  • 33 5 200
  • 33 5 120
  • 33 5 125
  • 33 5 123
  • 33 5 121
  • 33 5 124
  • 33 5 126
  • 33 5 122
  • 33 5 127

WARNING: Danger of injury! Rear axle differential must be lashed with tensioning strap 33 5 206 to prevent it from dropping down when pressing the output shafts off.

IMPORTANT: When removing/reinstalling the rear axle final drive, both OUTPUT SHAFT RADIAL SHAFT SEALS and the circlip on both output shafts must be replaced.

After completing repair work, CHECK GEARBOX OIL LEVEL.

Necessary preliminary work:

  • Remove PROPELLER SHAFT ON REAR AXLE FINAL DRIVE .
    • Disconnect propeller shaft at rear axle differential.
    • Release center mount.
    • Tie up propeller shaft to underbody.

NOTE: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!

Position special tool 33 5 200 on workshop jack.

Support rear axle final drive 33 5 200 with special tool.

Lash rear axle final drive with tensioning strap 33 5 206 to special tool 33 5 200 .

IMPORTANT: Tensioning strap 33 5 206 must be pass through between output shafts and rear axle final drive cover!

Suspension

IMPORTANT: Special tools 33 5 120 and 33 5 125 must be inserted in all-round slot (1) on output shaft!

Suspension

Press only left output shaft out of rear axle final drive with jerking and jolting motions using special tool 33 5 123 , 33 5 121 , 33 5 124 /33 5 126 .

Here, synchronising key of bolt 33 5 122 must rest on rear axle final drive.

Suspension

Release screws (1).

Installation note: Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear axle final drive during installation and thereby avoid potential complaints about noise.

Suspension

Slacken nut (1).

N47 only: Remove vibration absorber (2) with holder.

Installation note: Adhere to the installation sequence at the end of the document in order to prevent distortion of the rear axle final drive during installation and thereby avoid potential complaints about noise.

Suspension

Lower rear axle final drive with special tool 33 5 200 .

Suspension

Press (tilt) rear axle final drive on right upwards.

Feed out left output shaft in downward direction and tie up.

Swing rear axle final drive towards left side.

Suspension

Press right output shaft out of rear axle final drive with jerking and jolting motions using special tool 33 5 123 , 33 5 121 , 33 5 124 /33 5 126 . Here, synchronising key of bolt 33 5 122 must rest on rear axle final drive.

Feed out output shaft and tie up.

Remove rear axle final drive.

Suspension

IMPORTANT: High installation forces indicate that the output shaft spline teeth are damaged or deformed!

Check gearing and replace components if damaged.

Check dust plate (1) for damage, renew if necessary.

Circlip (2) must be replaced.

Coat highlighted contact surface (3) of output shaft with approved final drive oil.

Suspension

Installation note: Insert output shaft into rear axle final drive.

Pull out assembly protection ring at lug (1) until one of the two predetermined breaking points gives.

Suspension

Drive output shaft into rear axle final drive using special tool 33 5 125 33 5 127 and a rubber mallet.

Suspension

Assembly sequence:

  1. Install rear axle final drive with workshop jack and special tool 33 5 200 in rear axle support
  2. Insert bolts (1) (do not tighten down)
  3. Insert bolt from rear and replace nut (2) (do not tighten down)
  4. Release tensioning strap, lower special tool 33 5 200 and move away
  5. Tighten down screws (1)
  6. Tighten nut (2)
    Suspension

After installation:

  • Check TRANSMISSION OIL LEVEL, correct if necessary.

Replacing shaft seal(s) for output shaft(s) in rear axle final drive

Special tools required:

  • 00 5 010
  • 32 1 060
  • 33 1 308
  • 33 5 130
  • 33 5 140

Necessary preliminary work:

  • Remove REAR AXLE FINAL DRIVE.

Use special tools 00 5 010 and 32 1 060 /33 1 308 to remove radial shaft seal

Suspension

Installing new shaft seal:

NOTE: The installation protective ring (1) serves to protect the sealing lips of the radial shaft seal (2) when installing the output shaft.

Suspension

IMPORTANT: Installation protective ring (1) must not slip out of radial shaft seal!

Coat housing plate flange of new shaft seal with approved rear differential oil. Drive in radial shaft seal as far as it will go with following special tools (depending on rear axle final drive/outer diameter).

  • 33 5 130
  • 33 5 140
Suspension

Remove special tool.

Open installation protective ring (1).

IMPORTANT: High installation forces indicate that the output shaft spline teeth are damaged or deformed! Check gearing, replace damaged components if necessary.

Check dust plate (1) for damage, renew if necessary.

Replace circlip (2).

Coat highlighted contact surface (3) of output shaft with approved final drive oil.

Suspension

Insert output shaft into rear axle final drive.

Pull out assembly protection ring at lug (1) until one of the two predetermined breaking points gives.

Suspension

After installation:

  • Check FINAL DRIVE OIL LEVEL, correct if necessary.

Test yourself

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