Enable HBA on MLBevo cars

   #1  

hadez16

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Hi all,

this script applies to all new Audi MLBevo cars like Audi A4 B9

It enables the simple High Beam Assist when absolutely no headlight assist is equipped.

Code:
StartVCDS()
OpenUnit("A5")
	TestComponent("BVS",1) ;coding does not apply on ultra new zFAS cameras like VW Touareg 3
	ChangeCoding("21:5","")
CloseUnit()
OpenUnit("09")
	ChangeCoding("5:0,5,6","")
CloseUnit()

ClearAllDTCs()
There is an exception for the ultra new zFAS cameras with 85 Byte coding (VW Touareg 3) as this is not possible there with that script.

Cheers,
hadez16
 
   #2  

rs5iswicked

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Hi all,

this script applies to all new Audi MLBevo cars like Audi A4 B9

It enables the simple High Beam Assist when absolutely no headlight assist is equipped.

Code:
StartVCDS()
OpenUnit("A5")
	TestComponent("BVS",1) ;coding does not apply on ultra new zFAS cameras like VW Touareg 3
	ChangeCoding("21:5","")
CloseUnit()
OpenUnit("09")
	ChangeCoding("5:0,5,6","")
CloseUnit()

ClearAllDTCs()
There is an exception for the ultra new zFAS cameras with 85 Byte coding (VW Touareg 3) as this is not possible there with that script.

Cheers,
hadez16
Will this script work on a B9 RS5 that already has HBA, to make the setting stick post re-start?
Factory equipped vehicles are coded to turn this off at every restart.
Makes no sense being as the MLB-EVO cars like the A6's are factory coded to remain the same as they were when the vehicle shut down.
 
   #4  

golfi_vend

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That is 09 adaption on mqb cars. I'd check there. It was named something about "reset".
 
   #6  

hadez16

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Deactivating the HBA reset on MLBevo cars is not possible via coding. Probably somewhere deep in parameters.
Audi B9 Facelift has the new behaviour = Reset is deactivated.
 
   #7  

rs5iswicked

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Deactivating the HBA reset on MLBevo cars is not possible via coding. Probably somewhere deep in parameters.
Audi B9 Facelift has the new behaviour = Reset is deactivated.
So essentially, the B9 cars are the only cars with the reset.
B8.5's could do it, A6's on the MLB-EVO can do it, but they took the feature out for 3-4 years on a new model?
I seriously don't get how Audi thinks sometimes.
Maybe when the B9.5's come out, we can compare coding at the bit/byte levels?
It also makes me wonder about if Audi finally decided to use the Ambient lights as part of the welcome home/coming home feature of the B9.5's, like they do on the A6's....
 
   #8  

hadez16

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So essentially, the B9 cars are the only cars with the reset.
B8.5's could do it, A6's on the MLB-EVO can do it, but they took the feature out for 3-4 years on a new model?
I seriously don't get how Audi thinks sometimes.
Maybe when the B9.5's come out, we can compare coding at the bit/byte levels?
It also makes me wonder about if Audi finally decided to use the Ambient lights as part of the welcome home/coming home feature of the B9.5's, like they do on the A6's....
B9.5 is out since MY20. As I said, no bit that is changeable regarding HBA reset.
 
   #9  

rs5iswicked

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B9.5 is out since MY20. As I said, no bit that is changeable regarding HBA reset.
Interesting.
I was told in enough thread that the HBA was now sticky in the B9.5s....
Do you know if they changed the behavior of the ambient lighting to make it part of the leaving/coming home lighting?
 
   #10  

hadez16

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Interesting.
I was told in enough thread that the HBA was now sticky in the B9.5s....
Do you know if they changed the behavior of the ambient lighting to make it part of the leaving/coming home lighting?
It is "sticky". HBA reset is deactivated in B9.5
Ambient lighting: I don't know
 
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