Update,
I got the software and cable did the test of the cooling test with INPA like @fmugur, advise me too,
now we have come to a point that it may not be related to the cooling/heating related.
You can see test here:
video part 1:
2003 bmw x5 4.6is inpa test cooling monitoring part 1 test during driving. - YouTube
video part 2:
2003 bmw x5 4.6is inpa test cooling monitoring part 2 test during driving. - YouTube
video part 3:
2003 bmw x5 4.6is inpa test cooling monitoring part 3 test during driving. - YouTube
Test done:
M= Miles
E=Engine
T=Tranny
at:
3 Miles done / 105'C Engine / 96'C Tranny
6M / 106 E / 100 T
10M / 107 E / 104 T
(up to here i had flat freeway,from here i started going up the heal ):
at:
12 M / 99 E / 107 T
16 M / 105 E / 109 T
17 M / 99 E / 110 T
19 M / 95 E / 111 T ***
20 M / 108 E / 109 T
(here at this point was exiting out from the freeway ramp and getting ready to stop, at 4.48pm,then
crossed the bridge and before i went back to enter the freeway i stopped at 4.49pm)
From here ,i enter freeway and started to come down on the freeway,
at:
26 M / 105 E / 107 T
27 M / 105 E / 107 T (turned a/c on to see if any changes)
30 M / 105 E / 107 T (no changes, turned a/c off , also at this point i got to flat freeway)
34 M / 106 E / 106 T
38 M / 105 E / 106 T
39.5 M / 107 E / 106 T
(here i stopped in drive ,
then in parking and i had:
39.5 M / 109 E / 106 T.
I drove 40 miles, at 2500 Rpm's ,and at 70 mph.
This was the test done with my x5 driving and laptop connected to the inpa software and the x5.
All test was done in Celsius .
(converter to Fahrenheit
is here if you need it)
111'c = 231'f
So ,as you can see in here or videos, engine temp was from 95 to 108 , and the tranny was up to 111'c.
Now, not sure where the tranny temp should be, or it could be okay...
Next,to take the tranny pan down to see if any findings...