Vag diagnostic tools. A summary.

[Ben]

Please will someone in the know write a brief idiots guide explaining what the following programs are, what they do, where to obtain them and how much licences cost plus any other applicable information. Vagcom, vagtacho, rosstech, vagproducts. I know 2 are websites and 2 are programs. Are there any other outlets and programs that i've left off the list? Many thanks.

[dessimpson]

Please will someone in the know write a brief idiots guide explaining what the following programs are, what they do, where to obtain them and how much licences cost plus any other applicable information. Vagcom, vagtacho, rosstech, vagproducts. I know 2 are websites and 2 are programs. Are there any other outlets and programs that i've left off the list? Many thanks.

I'll second that request

[Ben]

so is VAG TACHO a different program to VAGCOM and nowi'v read of VAG CAN COMMANDERif so what can one do that the other can't and vice versa. I heard that TACHO can get pin numbers for keys and can do something with mileage. What can VAG COM do and VAG CAN COMMANDER.? Then there are the websites that get quoted all the time, VAG PRODUCTS and ROSSTECH. Who does what. Then there are all the cables, why so many different types? Does VAG COM need one type of cable and VAGTACHO need another so on and so forth or does the type of cable and programe required depend on the age of the vehicle.

now i've looked at eshrules page here and i'm sitll confused. Whats the difference between a USB KKL Vagcom cable and a USB Canbus Vagcom Cable other than the price.

its like buying a car, you do't get the blue one or the one that has a fast sounding name, You want to know what it does, what features it hes etc etc.

[Eshrules]

so is VAG TACHO a different program to VAGCOM and nowi'v read of VAG CAN COMMANDERif so what can one do that the other can't and vice versa. I heard that TACHO can get pin numbers for keys and can do something with mileage. What can VAG COM do and VAG CAN COMMANDER.? Then there are the websites that get quoted all the time, VAG PRODUCTS and ROSSTECH. Who does what. Then there are all the cables, why so many different types? Does VAG COM need one type of cable and VAGTACHO need another so on and so forth or does the type of cable and programe required depend on the age of the vehicle.

now i've looked at eshrules page here and i'm sitll confused. Whats the difference between a USB KKL Vagcom cable and a USB Canbus Vagcom Cable other than the price.

its like buying a car, you do't get the blue one or the one that has a fast sounding name, You want to know what it does, what features it hes etc etc.

ok. ill try to answer your questions and take it from there

Vagtacho and vagcan commander, are basically the same item BUT tacho works on non canbus vehicles, whereas the vagcan commander, does.

now, canbus is (correct me if im wrong here) the new protocol brought in with the new range of VAGs from 2005 onwards, such as the mk5 golf.

anything before that, is non canbus compliant.

so for instance, a golf mk4 registered in 2000, would require a vagtacho to read the 4 digit pin from the immobiliser.

a golf mk5 registered in 2005 would require the vagcan commander to read the pin from the immobiliser.

VagCOM is, in the main, a diagnostic program. it started life as VWtool, i believe the story stands that the guy who designed VWtool passed away, leaving Hue (sp?) Ross to take the raw code of VWtool, re write it and produce what we all know as vagcom today.

vagcom can be used in conjunction with the tacho/commander interfaces to code new keys and fobs to the immobiliser and alarm system.

in regards to the differing vagcom cables, im not entirely sure what the differences are there, some are hex-can etc. i will be looking into this more myself. the main ones which are used are the USB KKl leads, whether they be 3rd party or official rosstech leads.

the same sort of rule applies to vagCOM cables that applies to tacho/commander. in that pre 2005 are not canbus, so require a certain vagcom lead, post 2005 ARE canbus, so require a different lead and have a more recent version of vagcom also.

this is where it gets a little more confusing.... the newer version of vagcom doesnt really allow for 3rd party leads, as the authentication is built into the lead itself, the lead acts as a dongle....

it is all quite confusing and im far from expert in this field

[dessimpson]

Thanks, that's cleared it up a bit

One quick question. Are all the cables usb?? (i have com ports on my little laptop )

I take it as my car is a mkIV (2002) I need a vagtacho cable and the free version of vagcom should be fine (as i just plan to have a look around )

Des

[Eshrules]

Thanks, that's cleared it up a bit

One quick question. Are all the cables usb?? (i have com ports on my little laptop )

I take it as my car is a mkIV (2002) I need a vagtacho cable and the free version of vagcom should be fine (as i just plan to have a look around )

Des

not all cables are USB, no, i believe com and serial cables are available....

if you intend to code multiple keys to your car, vagtacho and a full version of vagcom would be needed. if you only want to code the one key, you'd be fine with just vagtacho.

vagtacho doesn't seem to like coding more than one key for some strange reason.

and yes, you should be fine with it being a 2002

[Petef]

Hi guys

(my first post here...... so go easy on me )

Anyway, just be wary of some cables with serial connectors. I was looking for one the other week and found that the majority on Ebay require an interface between the cable and the computer. I'm guessing it's some sort of optical isolator/data buffer..... I'm not sure... Just be wary when you buy one that it may be designed to use some additional kit that you haven't accounted for. I've managed to track one down and recieved it this morning from china.... will let you know how it goes.

Laters
Pete F

[Audi_Butler]

now, canbus is (correct me if im wrong here) the new protocol brought in with the new range of VAGs from 2005 onwards, such as the mk5 golf.

anything before that, is non canbus compliant.

Can I just add that I read this in a lot of places. I have a 2004 54 plate Audi A3 2.0 TDI and after a lot of reading I purchased what I believed to be the right cable. A KEY-USB cable as my car is 2004 registered.

It turns out I need a CAN-BUS cable to access mine. So although everyones saying pre 2005 cars aren't CAN-BUS, it's best to go by the chassis number on your car to find out what cable you need. You can find CAN-BUS cars here http://www.ross-tech.com/vag-com/canbus.html and if your cars not listed there it's safe to say you don't need a CAN-BUS cable.

The chassis number is the 7th and 8th digits on your VIN. You can read this post to clarify. https://www.vwaudiforum.co.uk/forum/showthread.php?t=116

I hope that stops some other 54 plate Audi drivers having the problem that I had!

Cheers.

Butler.

[Audi A4 Lover]

Right I think Ill get shouted at here for being stupid and asking questions that have already been answerd, BUT im going to ask anyway. Iv got a 98' A4, Iv also got a KWP2000 usb code reader/ECU flasher, now the origional software I got with this went walkies soon after I got it, and Iv not actually used it yet as the Audi is new to me and my other cars dont have OBD ports on them ( 2x 1977 MGB's).So Im wondering if I can download one of the free programs to have a fiddle with my Audi's mind?Or am I going to have to get a different cabe?

[Theresias]

(Since the original message has been deleted, no need for the reply either.)