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      10-25-2021, 02:07 AM   #1
MaWe
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Tow Bar Westfalia

Hello,

I need help, I buy Westphalia tow bar to My F31 from 2013.

I'll buy tow bar and dedicated wiring ( 303 460 300 113) for BMW

Did someone, what i need to code for this wiring.

When i mount it works, but PDC not disassembly when i attach the trailer. I don't have button on dash to disable PDC


I find on forum to add FA 3AC and code FEM, ICMQL, REM, DSC, HU and Kombi.

I'll make it. PDC now working correctly. When i attach the trailer PDC deactivates i have see tow icon on screen.


Now there is a mistake as in the photos, regardless of whether the trailer is attached or not




When I read faults codes ISTA show error with AHM module. I don't have AHM module i only have module from westfalia.


HELP what I need to code.
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      10-25-2021, 02:44 AM   #2
atzebmw
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https://f30.bimmerpost.com/forums/sh....php?t=1837344

https://f30.bimmerpost.com/forums/sh....php?t=1827537
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      10-25-2021, 03:08 AM   #3
MaWe
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I see this topics

They write about coding the original hooks.

I'll buy Westfalia after market hook it's not OEM BMW hook, and module is from westfaliia not from BMW.

I call to Westfalia They said their module only sends information on the CAN to car aobut light but nothing else.

Original BMW when trailer is attached changes parameters of engine, transmission and DCS system.
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      10-25-2021, 03:45 AM   #4
atzebmw
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Quote:
Originally Posted by MaWe View Post
I see this topics

They write about coding the original hooks.

I'll buy Westfalia after market hook it's not OEM BMW hook, and module is from westfaliia not from BMW.

I call to Westfalia They said their module only sends information on the CAN to car aobut light but nothing else.

Original BMW when trailer is attached changes parameters of engine, transmission and DCS system.
Then why did you add FA 3AC and code FEM, ICMQL, REM, DSC, HU and Kombi?
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      10-25-2021, 03:56 AM   #5
MaWe
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Quote:
Originally Posted by atzebmw View Post
Then why did you add FA 3AC and code FEM, ICMQL, REM, DSC, HU and Kombi?
To deactivate PDC sensor when trailer is attached.

Now when i attach the trailer car see it and deactivate PDC sensor very well
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      10-25-2021, 04:01 AM   #6
atzebmw
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Quote:
Originally Posted by MaWe View Post
To deactivate PDC sensor when trailer is attached.

Now when i attach the trailer car see it and deactivate PDC sensor very well
But 3AC is also for the OEM BMW hook.
So you could try the K235 instead of 3AC.
The K235 has some other codings.
Maybe this will deactivate the error message.
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      10-25-2021, 04:13 AM   #7
MaWe
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Ok ill try.

When I add K235 code again FEM, ICMQL, REM, DSC, HU and Kombi ?

Or code all of ECU's
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      10-25-2021, 04:17 AM   #8
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Quote:
Originally Posted by MaWe View Post
Ok ill try.

When I add K235 code again FEM, ICMQL, REM, DSC, HU and Kombi ?

Or code all of ECU's
First remove the 3AC.
Then add the K235 as HO-Wort and code FEM, ICMQL, REM, DSC, HU and Kombi.
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      10-31-2021, 07:34 AM   #9
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Quote:
Originally Posted by atzebmw View Post
First remove the 3AC.
Then add the K235 as HO-Wort and code FEM, ICMQL, REM, DSC, HU and Kombi.
I'll make it but I still have trailer elektric error, PDC deactivate when trailer attached

I decided to delete K235 ,code all modules in car like as a factory

To deactivate PDC sensor all that I have to do , I must use Bimeercode and code
PDC deactivation during trailer operation

PDC now deactivate

And when I take out the bulb in trailer, there is information that it does not work on kombi


Unfortunately, there was a bigger problem ,

1. I got a permanent CF2501 error against the EGS for 'no message' from 'transmitter AHM', and this even persisted and still couldn't be cleared after I had removed the Westfalia module and wiring

2.
When westfalia module is connected the automatic transmission not working well.

When I stop after about 10 seconds, I feel a jerk, as if the gearbox was changing gear.

When I disconnect the westaflia trailer module nothing happens, transmision works fine

Help me .....

When I
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