VAGCOM on new RS4 - BY, 2007 - how do I use it?

[mikearmstrong]

I have seen that I can buy an interface lead for about £12 but then there is the software sitiuation: which software do I need for the new RS4 and do I need to pay for it?

 

[Gti Jazz Blue]

I would have thought that a 2007 RS4 will require a CANBUS interface which I doubt a £12 cable is.

Paul

 

[mikearmstrong]

Please explain, as this means nothing to me.... How do I tell?

 

[The911SC]

the cheap leads use opto isolators and only support the old vag com software which will not code some modules. If all this doesnt make any sense to you then I suggest you save your 12 pounds and wait an see what you want to do.
To get a real vag com cable, you will need to spend about 200 pounds then all of the programing software works.

 

[mas]

early cars use what is called K&L lines - low speed single device talks at once.
canbus is multiplexed and high speed.

they use different pins in the socket, different signal protocols and different encoding.

I dont think can is supported on the free version of the software.

Look on ross techs site for details or ask the dealer (or google)

but if you can afford a new rs4 why quibble about spending a couple of hundred on what is a very good and very reasonably priced product.

and no the ebay leads are not going to be can

 

[PetrolDave]

ALL B7's need a lead that supports K-line, L-line AND CAN bus since some controllers (e.g. on an RS4 the 2 engine ECU's at addresses 01 and 11) only have a CAN connection.

Spend the $$$ and get a genuine lead such as a HEX-USB+CAN or a HEX-COM+CAN (which is what I use on my B7 RS4).

 

[Caesium]

Or find someone who has it already that lives in your area.