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  #21  
Old 11-18-2017, 02:55 AM
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I never found a hex set that works with my X5. I reprogrammed my other bmw's read right temp wise but I cant find anything for the X5
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  #22  
Old 11-18-2017, 03:55 PM
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The tstat is only the beginning.
At this mileag of 150K miles, a lot of things will go wrong:
- WP
- Fan Clutch
- Fan Blades
- Hoses
- Belts
- Pulleys x 3
etc. etc.

This is why one needs to do a cooling overhaul at this mileage.
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  #23  
Old 11-18-2017, 07:52 PM
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Quote:
Originally Posted by Crowz View Post
I never found a hex set that works with my X5. I reprogrammed my other bmw's read right temp wise but I cant find anything for the X5
I found the hex code for our E53 X5 Crowz. Like the E39, the code is in 2 places and must be modified in both addresses. The addresses for the code string are:

0x0F0 rolling into 0x100
0x290 rolling into 0x02A0

My original hex code starting at:
0F 62 32 CB 4B CB 73 38 78 6A 7D FF
Changed to:
0F 62 3C CB 55 CB 5F 38 6E 6A 73 FF

This brought my buffer to 10C (85C-95C) instead of the ridiculous 40C (75C-115C) and lowered my red zone from 125C to 115C so I have some early warning to shut it down without killing the engine. It also brought my blue zone from 50C to 60C so I would have been alerted about my soft fail thermostat easier.

I programmed the EEPROM and took it for a ride with Torque Pro running and it is right on the money. I can not test the red zone but it can only be spot on as well.

For anyone wanting to change the buffer on the stock X5 E53 you need PA Soft 1.4 software. Here are step-by-step instructions with PA Soft 1.4
1) Click on IKE.
2) Click "Read EEPROM"
3) Hex editor functions are in the lower left hand corner. Click the floppy disk icon to save the factory loaded file onto your desktop as backup.
4) Make revisions from "factory" values to "revised" values shown above: Find the corresponding offset and move the cursor over the bytes to be revised. You can use arrow keys to move the cursor as well.
5) Click "Write EEPROM." Your cluster will flash and beep several times after completion -- and like magic, your gauge will now reflect more accurately what's happening under the hood.
6) You will need to reset you time and date after the cluster EEPROM has been flashed

Viola!
Attached Images
  
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  • 2004 E53 X5 3.0 ZSP (4/04 build date) Jet Black exterior/Sand Beige interior
  • 2002 E46 325i ZPP (2/02 build date) Alpine White exterior/Hell Beige interior

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Last edited by Overboost; 11-18-2017 at 08:05 PM.
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  #24  
Old 11-18-2017, 07:54 PM
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Quote:
Originally Posted by Overboost View Post
I founf the hex code for our E53 X5 Crowz. Like the E39, the code is in 2 places and must be modified in both addresses. The addresses for the code string are:

0x0F0 rolling into 0x100
0x290 rolling into 0x02A0

My original hex code starting at:
0F 62 32 CB 4B CB 73 38 78 6A 7D FF
Changed to:
0F 62 3C CB 55 CB 5F 38 6E 6A 73 FF

This brought my buffer to 85C to 95C instead of the ridiculous 40C and lowered my red zone from 125C to 115C so I have some early warning to shut it down without killing the engine. It also brought my blue zone from 50C to 60C so I would have been alerted about my soft fail thermostat easier.

I programmed the EEPROM and took it for a ride with Torque Pro running and it is right on the money. I can not test the red zone but it can only be spot on as well.

For anyone wanting to change the buffer on the stock X5 E53 you need PA Soft 1.4 software. Here are step-by-step instructions with PA Soft 1.4
1) Click on IKE.
2) Click "Read EEPROM"
3) Hex editor functions are in the lower left hand corner. Click the floppy disk icon to save the factory loaded file onto your desktop as backup.
4) Make revisions from "factory" values to "revised" values shown above: Find the corresponding offset and move the cursor over the bytes to be revised. You can use arrow keys to move the cursor as well.
5) Click "Write EEPROM." Your cluster will flash and beep several times after completion -- and like magic, your gauge will now reflect more accurately what's happening under the hood. Viola!
Is that on the high cluster or the low cluster? I have the high cluster and didn't find a match for any of the hex strings last time I tried this. I will try again if this is for the high cluster.
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1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
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  #25  
Old 11-18-2017, 07:58 PM
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Just double checked and those numbers are different from what I have saved out as trying last time. Will try again.
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1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
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  #26  
Old 11-18-2017, 07:59 PM
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Quote:
Originally Posted by Crowz View Post
Is that on the high cluster or the low cluster? I have the high cluster and didn't find a match for any of the hex strings last time I tried this. I will try again if this is for the high cluster.
High cluster. Mine is a 2004.
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Last edited by Overboost; 11-18-2017 at 08:06 PM.
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  #27  
Old 11-18-2017, 08:08 PM
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Quote:
Originally Posted by Crowz View Post
Just double checked and those numbers are different from what I have saved out as trying last time. Will try again.
If you can send me a screenshot of the .bin addresses I can try to help, they should be the same?
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  • 2002 E46 325i ZPP (2/02 build date) Alpine White exterior/Hell Beige interior

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The older I get... The faster I was...
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  #28  
Old 11-18-2017, 08:13 PM
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I will check when I get back from getting cigs. I don't want to tinker with it till I get back in case something messes up.

The search string was different I tried before so the one you listed might work will know in under an hour.
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1997 528i
2000 323i
2001 X5 3.0 auto
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2013 X5 xdrive35 Turbo
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Aftermarket E53 Radio Install
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  #29  
Old 11-18-2017, 08:27 PM
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Quote:
Originally Posted by Crowz View Post
I will check when I get back from getting cigs. I don't want to tinker with it till I get back in case something messes up.

The search string was different I tried before so the one you listed might work will know in under an hour.
Just save your original EEPROM .bin file. I screwed up the first time too and had to flash back until I found my error.
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The older I get... The faster I was...
No Fear


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  #30  
Old 11-18-2017, 08:51 PM
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Will do. I just got home and eating real quick and I will go out and try it.
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1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
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