00 11 500 Checking/topping up oil level in automatic transmission (GA8P75H) (N20 hybrid drive)

Special tools required:

2 405 614

WARNING: High-voltage system - danger to life!

WARNING: The following points must be strictly observed prior to starting work:

Observe SAFETY INFORMATION for handling hybrid cars.

IMPORTANT:

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

IMPORTANT: Use only approved TRANSMISSION OIL . To set the correct level, it is mandatory that the service function "Transmission control unit: oil adjustment" is performed using the diagnosis system.

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

Conditions for oil level adjustment with BMW diagnosis system:

Initial condition: Transmission oil temperature 30° to 40°C.
Final condition: Transmission oil temperature 40° to 50°C.

IMPORTANT: The 8P75H automatic transmission fluid is a ATF3 plus silicone additive.
The silicone additive is already added in the gear oil bottle.
It is compulsory to shake the bottle before use.

Performing oil-level adjustment:

Oil-level adjustment is necessary for certain fault code entries in the automatic transmission and after repair (e.g. Mechatronics exchange, converter exchange, transmission exchange, automatic transmission oil service).

Connect BMW diagnosis system.
Call up service function (drive).
Carry out oil level check in accordance with instructions.

Adding transmission oil:

Stand vehicle on a level surface and secure against rolling off.

Release oil filler plug(1) with special tool 2 405 614 .

Add automatic transmission fluid according to instructions in the BMW diagnosis system.

Fig 1: Releasing Oil Filler Screw Using Special Tool (2 405 614)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: While using the special tool 2 405 614 the setpoint torque deviates from the torque to be set.

Conversion of setpoint torque -> torque to be set:

(setpoint torque x L1): L2 =torque to be set.

Fig 2: Adjusting Handle Center Length To Ratchet Head

Courtesy of BMW OF NORTH AMERICA, INC.

L1 = Length of handle center to the ratchet head.

L2 = Length of the handle center to the action point of special tool.

Desired tightening torque: 24 11 3AZ

Parts: Replace oil filler plug and sealing ring.

NOTE: Special tool (1) and torque wrench must be aligned in a line at the time of tightening.

Tighten down oil filler plug using

special tool 2 405 614 .
Torque wrench

Fig 3: Tightening Oil Filler Plug Using Special Tool (2 405 614)

Courtesy of BMW OF NORTH AMERICA, INC.