BMW X3 Quiz

Alternator with drive and mounting

In this manual: Alternator with drive and mounting
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
~3min read
  • Removing and installing alternator (N52T)
  • Removing and installing or replacing alternator (N20, N26)
  • Removing and installing or replacing alternator (N55)
  • Removing and installing/replacing alternator (N47 D20 O1)

Removing and installing alternator (N52T)

IMPORTANT: Aluminum-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminum screws/bolts exclusively.

Aluminum screws/bolts must be replaced each time they are released .

Aluminum screws/bolts are permitted with and without color coding (blue).

For reliable identification: Aluminum screws/bolts are not magnetic .

Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary work:

  • Switch off ignition.
  • Disconnect BATTERY EARTH LEAD .
  • Remove INTAKE SILENCER HOUSING .
  • Remove ALTERNATOR DRIVE BELT .

Release connector (1) and remove.

Slacken nut (2).

Installation note:

Disconnect positive battery cable from alternator.

Release screws (3) and remove alternator.

Installation note:

Replace aluminum screws.

Electrical

Assemble engine.

Removing and installing or replacing alternator (N20, N26)

Necessary preliminary tasks:

  • Switch off ignition
  • Disconnect BATTERY EARTH LEAD and cover.
  • Remove INTAKE SILENCER HOUSING .
  • Remove CLEAN AIR PIPE , top.
  • Remove TENSIONING DEVICE for drive belt.

Release screws (1).

Electrical

Unlock connector (1) and remove.

Release nut (2) and remove the positive battery cable.

Disconnect tank ventilation line (3) and place to one side.

Feed out alternator (4) to the left and remove.

Electrical

Assemble engine.

Removing and installing or replacing alternator (N55)

Necessary preliminary tasks:

  • Switch off ignition
  • Disconnect BATTERY EARTH LEAD and cover.
  • REMOVE LEFT CHARGE AIR DUCT .
  • Remove alternator DRIVE BELT .

NOTE: In order to remove the alternator, it is necessary to remove . In so doing:

  • Do not draw off air conditioning refrigerant.
  • Do not detach refrigerant lines from A/C compressor.
  • Do not remove air conditioning compressor; instead, release from bracket only and place to one side.

Release screws (1).

Release screw (2).

Release screw (3) and remove with holder (4).

Electrical

Unlock connector (1) and remove.

Remove protective cap (2) and release nut underneath.

Remove positive battery cable(3).

Electrical

NOTE: For purposes of improved clarity, illustrations and description show A/C compressor removed.

Release screws (1) a few turns until bracket (2) is loose. Do not remove bracket (2).

Feed out alternator (3) and remove.

Electrical

Assemble engine.

Removing and installing/replacing alternator (N47 D20 O1)

Necessary preliminary work:

  • Read out the fault memory of the DDE control unit.
  • Switch off ignition.
  • Disconnect BATTERY EARTH LEAD .
  • Remove INTAKE FILTER HOUSING .
  • Remove INTAKE PORT .
  • Remove THROTTLE BODY .
  • Remove INTAKE PLENUM .
  • REMOVE drive belt for alternator.

Release connector (1) and remove.

Slacken nut (2).

Disconnect positive battery cable from alternator.

Electrical

Slacken nut (1).

Remove cover from idler pulley and undo bolt (1) beneath it.

Remove idler pulley.

Electrical

Release screws (1).

Feed out alternator upwards and remove.

Electrical

NOTE: Check stored fault messages.

Delete fault memory.

Test yourself

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