Key Programming

[MarkB]

Good question! That's one for Ross Tech to answer. I'm not sure how that would work, but with Vag-Tacho you don't need any of the WSC, date or dealer codes. When using Vag com to code a key, the SKC is calculated using a combination of the date and the supplied codes. Vag Tacho reads the actual SKC code. Plus all of the B5 cars can be done using the 4 digit login, not the 7digit.

This all sounds incomplete to me so I'll be steering clear for now.

[Mikey-S]

If you have a B5 then you've nothing to worry about, it's only the later cars (2002 onwards I think) that will only accept the new style of dealer generated SKC. I've just sent Vag-Com a mail about using the Vag-TACHO supplied codes on a newer car, I'll keep you posted.

Look at it this way, if you own a B5 car, £25 as a one off payment is much better than paying the stealers between 1/2 and 1 hours labour everytime you need a key coding, or god knows how much if you needed to change an ECU/Cluster.

Mike

[Mikey-S]

"There is no need to use the 7 digit SKC dialog if you have the 4 digit PIN" - Straight from Vag-Com

[MarkB]

Later B5 S4's don't have the 4 digit PIN.

[R5YUG]

Good question! That's one for Ross Tech to answer. I'm not sure how that would work, but with Vag-Tacho you don't need any of the WSC, date or dealer codes. When using Vag com to code a key, the SKC is calculated using a combination of the date and the supplied codes. Vag Tacho reads the actual SKC code. Plus all of the B5 cars can be done using the 4 digit login, not the 7digit.

That's interesting Mikey - I've got a version of VAG-TACHO (a few years old) but I haven't been able to read my SKC from my B5 RS4 as yet - tried over 20 times as the software can be a bit hit and miss in extracting the codes from clusters (Successfully read the code on a mates B5 Passat and MKIV Golf though).
What version of the software are you using out of interest and have you tried it on a facelift or post 2001 B5 Audi? TIA Guy

[Mikey-S]

I'm using version 2.2, I have found that if you let it connect to 'any' tacho then most of the options aren't available, but if you connect to 'VDO old' then there's no problem.

[MarkB]

Mikey, what age S4's have you done it on?

[Mikey-S]

I've read the pin, coded keys and changed the mileage via Vag TACHO..... (only experimental) on both my 1998 S4 and 1999 1.8Tq. I have also logged in to the immob and coded keys with Vag COM using the Vag TACHO supplied pin. I have also done all of this on my 2001 Seat Leon tdi.