BMW 2002 E39 change the transmission oil and filter with INPA

BMW INPA K+CAN

I have a 2002 E39 with a ZF AT with 171K on the clock. Not knowing the service history I decided to change the transmission oil and filter, so I drained the trans overnight and the next morning I measured the drained oil and discovered 5 qts had drained out. Now as you already know I was only able to replace 3 qts sooo i’m a little concerned as to the other 2 qts.

Use BMW INPA or a handheld infrared thermometer or similar to measure the trans temp. Follow these instructions:

Checking/topping up fluid level in automatic transmission (A5S 325Z)
Caution!
Automatic transmission fluid!
It is absolutely essential to use the approved automatic transmission fluid in this automatic transmission,
refer to BMW Operating Fluids MG24

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

1. Add ATF after repairs:
Selector lever to setting ”P”.
The vehicle must be horizontal and should be secured to prevent it from rolling away.
Connect BMW Diagnosis and Information System (DIS) or BMW MoDiC to car.
Note:
Before releasing filler plug (1), make sure temperature of automatic transmission fluid is ≤ 30 °C.

Release filler plug (1).
Top up automatic transmission fluid until it flows over.
Screw in filler plug (1) by hand.
Start engine and run at idle speed.
Operate brake and shift through all gears at idle speed several times (hold gears for 3 sec. in each case).
Note:
Before releasing filler plug (1), make sure temperature of automatic transmission fluid is ≤ 30 °C.

Release filler plug (1) again.
Top up automatic transmission fluid until it flows over.
Increase temperature of automatic transmission fluid to 40 … 50 °C.
Check temperature of automatic transmission fluid with MoDiC or DIS.
Screw in filler plug (1).
Installation:
Replace filler plug (1).
Tightening Torque,
refer to Technical Data 24 11 7AZ

ADeaYFy

2. Check fluid level:
Connect BMW Diagnosis and Information System (DIS) and/or BMW MoDiC to vehicle and perform fluid level check in accordance with instructions.
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