Shift valves, parking lock

In this manual: Shift valves, parking lock
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
3steps
~18min
2/5difficulty
Done 0 of 3
  • Manually releasing parking lock (from vehicle underbody) transmission GA8HP
  • Notes on mechatronics (GA8HP45Z, GA8HP70Z, GA8HP90Z)
  • Replacing mechatronics (GA8HP45Z)
  • Replacing sealing cup for transmission housing (GA8HP45Z)
  • Unlock transmission lock electronically

Manually releasing parking lock (from vehicle underbody) transmission GA8HP

For various tasks, it is necessary to unlock and lock the parking lock.

This can be done from inside the passenger compartment or underneath the vehicle.

Before releasing the parking lock, secure the vehicle against rolling away.

In the event of a power supply interruption, e.g. flat battery or electrical fault, the parking lock must be manually released, otherwise the wheels will be locked and the vehicle cannot be moved.

Manual emergency release of parking lock from passenger compartment is not possible with GA8HP transmissions for:

  • F01/F02/F03/F04 GA8HP from production date 09/2010
  • F07 GA8HP from production date 03/2010
  • F10/F11 GA8HP as from production date 06/2010

Before removing the underbody panel, always check inside the vehicle to be certain the parking lock emergency release is not fitted.

From the vehicle underbody: Raise vehicle.

Manual emergency release of parking lock

  • Remove underbody protection
  • Screw in screw (1) with hexagon socket (SW5) until parking lock is released by lever (2).
  • It is imperative that bolt is always replaced.
  • Clean thread with screw tap size M6X1, 0.
Transmission

Screw new microencapsulated screw (1) into thread.

IMPORTANT: Screwing in and adjusting of screw to 1.5 to 2.5 mm above thread lip (A) must occur within 3 minutes.

The screw may no longer be turned after 3 minutes (hardening of adhesive), otherwise it must be replaced.

Transmission

From passenger compartment:

  • Refer to Manual emergency unlocking of parking lock.

    From underneath vehicle with Bowden cable:

  • Remove rear underbody protection.
  • Press release lever (3) backwards.

If permanent release is desired, fix lever in position (e.g. with cable strap).

Locking:

  • Let go of release lever (3) or undo means by which it is secured.
Transmission

Notes on mechatronics (GA8HP45Z, GA8HP70Z, GA8HP90Z)

Special tools required:

  • 24 2 390

IMPORTANT:

  • Do not let skin come in contact with transmission oil and do not inhale fuel vapors.
  • Wear protective gloves.
  • Ensure adequate ventilation.

IMPORTANT: After completing work:

  • Load specific data status with the BMW diagnosis system
  • Check TRANSMISSION OIL LEVEL
  • Use only approved TRANSMISSION OIL .

Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Unscrew connector (1) and disconnect.

Transmission

Insert special tool 24 2 390 in sealing sleeve (1).

Transmission

Replacing mechatronics (GA8HP45Z)

Special tools required:

  • 24 1 430
  • 24 2 390

IMPORTANT:

  • Do not let skin come in contact with transmission oil and do not inhale transmission oil vapors.
  • Wear protective gloves.
  • Ensure adequate ventilation.

NOTE: After completing repair work:

  • Load specific data status with the BMW diagnosis system

IMPORTANT: On vehicles with automatic start/stop, a hydraulic impulse storage is installed in the mechatronics.

After completion of repair work, check TRANSMISSION OIL LEVEL .

Use only approved GEARBOX OIL .

Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

  • Remove REAR UNDERBODY PROTECTION .
  • Remove exhaust bracket.

The graphic shows a vehicle with rear-wheel drive.

Remove panels (2).

Transmission

IMPORTANT: Cable assembly is discontinued after 04/2010.

Release screw (2).

Disconnect cable (1).

Installation note:

Adjusting cable:

  • Release screw (2).
  • Bring release lever (3) into contact with selector shaft by pressing slightly. Distance B=0 mm.
  • Adjust cable (1) by means of holder until distance A = 1 mm is obtained.
  • Tighten down screw (2)
Transmission

IMPORTANT: Mechatronics can be destroyed by static discharges. Therefore the contacts inside the connector must not be touched. Insert special tool immediately after operation.

Unscrew connector (1) and disconnect.

Transmission

Insert special tool 24 2 390 in sealing cup (1).

Transmission

Remove TRANSMISSION OIL SUMP.

Remove OIL RESERVOIR.

Release screw (1) and unlock sealing cup with slide (2).

Transmission

Note position of sealing cup.

Pull out sealing cup (1).

Installation note:

Replace sealing cup (1).

Fit sealing cup in position (lug on inside). Turn until lug engages in groove of transmission. Slide in sealing cup.

Lug on sealing cup must not be damaged!

Transmission

IMPORTANT: Only for vehicles without oil reservoir.

Release all screws (1 and 2).

  • 1 = M6 x 59 mm
  • 2 = M6 x 20 mm

Carefully remove mechatronics.

Installation note:

Replace all screws (1 and 2).

Replace O-rings for oil ducts on the mechatronics unit and wet with automatic transmission fluid.

Transmission

IMPORTANT: Only for vehicles with oil reservoir.

Release all screws (1 and 2).

  • 1 = M6 x 59 mm
  • 2 = M6 x 20 mm

Carefully remove mechatronics.

Installation note:

Replace all screws (1 and 2).

Replace O-rings for oil ducts on the mechatronics unit and wet with automatic transmission fluid.

Transmission

Installation note:

Replace gasket (1).

Coat new gasket with automatic transmission fluid and install.

Transmission

Screw in guide pins 24 1 430 at screw position 4 and 9.

Transmission

Fit mechatronics unit.

Fit shift claw (2) in gearshift shaft (3) by pressing release lever (1).

Transmission

Screw down wing nuts as far as they will go on to the mechatronics unit.

Transmission

Observe different screw lengths.

Failure to comply with this requirement will result in serious damage to the automatic transmission!

Installation note:

Insert screws 8 and 14 until screw heads make contact.

Remove guide pins and fit remaining screws.

Tighten down screws in order 1...18.

Transmission

IMPORTANT: In vehicles with an oil reservoir, the screw 17 (M6 x 59 mm) must be secured with the oil reservoir.

Tighten in the order of 1...16 and 18.

Installation note: Install OIL RESERVOIR if necessary.

Replacing sealing cup for transmission housing (GA8HP45Z)

Special tools required:

  • 24 2 390

IMPORTANT:

  • Do not let skin come in contact with transmission oil and do not inhale fuel vapors.
  • Wear protective gloves.
  • Ensure adequate ventilation.

IMPORTANT: After completion of repair work, check TRANSMISSION OIL LEVEL .

Use only approved TRANSMISSION OIL .

Failure to comply with this requirement will result in serious damage to the automatic transmission!

Necessary preliminary tasks:

  • Remove TRANSMISSION OIL SUMP.
  • IF REQUIRED, REMOVE OIL ACCUMULATOR.
  • Remove CROSS MEMBER .

IMPORTANT: Support transmission with workshop jack.

Unlock and disconnect connector (1) by turning.

Transmission

Insert special tool 24 2 390 in sealing sleeve (1).

Transmission

Release screw (1) and unlock sealing cup with slide (2).

Transmission

NOTE: Make a note of installation position of sealing sleeve.

Pull out sealing cup (1).

Installation note:

Fit sealing sleeve in position (lug on inner surface). Turn until lug engages in groove of transmission. Slide in sealing cup.

Lug on sealing cup must not be damaged!

Transmission

Unlock transmission lock electronically

For various tasks, it is necessary to unlock and lock the parking lock.

Before releasing the parking lock, secure the vehicle against rolling away.

  • The emergency release is only possible if the engine does not start and the starter is turning.
  • If the emergency release must be activated although the engine starts, the fuse for the electrical fuel pump may be pulled.
  • The emergency release is active for 15 minutes.
  • As soon as a wheel speed signal is recorded, this period will be extended by another 15 minutes.
  • After this period of time, the transmission lock will be engaged without a message.
  • The chronological information depends on the battery capacity.
  • Only specially trained Service personnel are permitted to operate both the MECHANICAL as well as the electronic emergency transmission release system.
  • The vehicle must be raised and the underbody panelling removed in order to operate the MECHANICAL emergency transmission release system.

IMPORTANT: To operate the electronic emergency transmission release system the vehicle must not be towed but rather only pushed.

In the case of misuse, a corresponding fault is entered in the fault memory.

Unlock transmission lock electronically

  • Switch the ignition on.
  • Apply the brake pedal and hold it down during the entire procedure.
  • Press start/stop button.
  • The starting operation may last for some seconds in low ambient temperatures and for diesel engines.
  • As soon as the starter motor can be heard to operate
  • Press and hold down the release button (1)
Transmission
  1. The specified time must necessarily be complied with!
  2. Push selector lever (2) forward up to point of resistance and hold for 2 seconds.
  3. Release the selector lever and quickly move it forward by another level again.
    Transmission
  • The selector lever position N is displayed in the instrument cluster.
  • The transmission lock is now electronically unlocked.
  • Release the brake pedal after the transmission lock has been successfully unlocked.
  • Leave the ignition switched on in order to subsequently move the vehicle.
  • The transmission automatically shifts into P when the ignition is turned off.
Transmission

IMPORTANT: The transmission lock is reactivated without a message when the start/stop button is pressed again.

If the gearbox cannot be released, turn the ignition off and on again and repeat the previous steps.

Allow the starter to cool down for approx. 10 minutes after unsuccessful attempts.

Test yourself

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