Transfer case, general

In this manual: Transfer case, general
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
~4min read
  • Change transfer box oil (atc 45l)
  • Danger of poisoning if oil is ingested/absorbed through the skin
  • Replenishing/changing transfer box oil (atc 450)
  • Risk of injury if oil comes into contact with eyes and skin
  • Safety instructions for handling oil
  • Topping up transfer box oil (atc 45l)

Change transfer box oil (atc 45l)

Special tools required:

  • 00 2 080

IMPORTANT: Use only the approved TRANSMISSION OIL in the transfer box.

Failure to comply with this requirement will result in serious Information damage to the transfer box!

NOTE: Only change oil when transfer box is at normal operating temperature.

Necessary preliminary task:

  • Remove transmission cross-member .

Undo oil filler plug (1).

Installation note: Renew oil filler plug with O-ring.

Transmission

Place oil collecting apparatus underneath.

Use special tool 00 2 080 to draw off and dispose of transmission oil.

  • Drawn off oil volume ≥ 500 ml.
  • Observe country-specific waste disposal regulations
Transmission

Use special tool 00 2 080 to top the transmission oil up to the lower edge of the filler screw opening.

Transmission

Danger of poisoning if oil is ingested/absorbed through the skin

Danger of poisoning! Ingesting oil or absorbing through the skin may cause poisoning!

Possible symptoms are:

  • Headaches
  • Dizziness
  • Stomach aches
  • Vomiting
  • Diarrhoea
  • Cramps/fits
  • Unconsciousness

Protective measures/rules of conduct:

  • Pour oil only into appropriately marked containers
  • Do not pour oil into drinking vessels (drinks bottles, glasses, cups or mugs)
  • Observe country-specific safety regulations

First aid measures:

  • Do not induce vomiting.

    If the person affected is still conscious, he/she must rinse out their mouth with water, drink plenty of water and consult a doctor immediately.

    If the person affected is unconscious, do not administer anything by mouth, place the person in the recovery position and seek immediate medical attention.

Replenishing/changing transfer box oil (atc 450)

IMPORTANT: Use only the approved TRANSMISSION OIL in the transfer box.

Failure to comply with this requirement will result in serious damage to the transfer box!

NOTE: Only change oil when transfer box is at normal operating temperature.

Necessary preliminary tasks:

  • Remove TRANSMISSION CROSS MEMBER .

Check transfer case oil level, correct:

Undo oil filler plug (1).

Check transfer box oil level.

If necessary, pour in transmission oil up to lower edge of opening for oil filler plug (1).

Installation note: Replace oil filler plug (1).

Transmission

Changing transfer case oil:

Place oil collecting apparatus underneath.

Remove oil drain plug (1).

Drain and dispose of transmission oil.

NOTE: Observe country-specific waste disposal regulations

Installation note: Replace oil drain plug (1).

Transmission

Undo oil filler plug (1).

Pour in transmission oil up to lower edge of opening for oil filler plug (1).

Installation note: Replace oil filler plug (1).

Transmission

Risk of injury if oil comes into contact with eyes and skin

Danger of injury! Contact with eyes or skin may result in injury!

Possible symptoms are:

  • Impaired sight
  • Irritation of the eyes
  • Reddening of the skin
  • Rough and cracked skin

Protective measures/rules of conduct:

  • Wear safety goggles
  • Wear oil-resistant protective gloves
  • Observe country-specific safety regulations

First aid measures:

  • Eye contact: Rinse eyes immediately with plenty of water for at least 15 minutes; if available, use an eye-rinsing bottle. If irritation of the eyes persists, consult a doctor.
  • Skin contact: Wash off with soap and water immediately. If irritation persists, consult a doctor.

NOTE: Do not use solvents/thinners.

Safety instructions for handling oil

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin! RISK OF INJURY if oil comes into contact with eyes and skin!

Recycling: Observe country-specific waste disposal regulations.

Measures if oil is unintentionally released:

  • Personal precautionary measures: Danger of slipping! Keep noninvolved persons away from the work area. Wear personal protective clothing/equipment.
  • Environmental protection measures: Prevent oil from draining into drain channels, sewerage systems, pits, cellars, water and the ground.
  • Limiting spread: Use oil blocks to prevent the surface spread of oil.
  • Cleaning procedure: Bind and dispose of escaped oil with nonflammable absorbents.

NOTE: Do not flush oil away with water or aqueous cleaning agents.

Topping up transfer box oil (atc 45l)

IMPORTANT: Use only the approved TRANSMISSION OIL in the transfer box.

Failure to comply with this requirement will result in serious damage to the transfer box!

NOTE: Only change oil when transfer box is at normal operating temperature.

Necessary preliminary tasks:

  • Remove cross member .

Check transfer box oil level, correct:

Undo oil filler plug (1).

Check transfer case oil level.

If necessary pour in transmission oil up to the lower edge of the oil filler plug opening (1).

Installation note: Replace oil filler plug (1).

Transmission

Test yourself

A quick BMW X3 quiz: every answer comes with an explanation and a link to the manual page.