hey guys.. i have an audi A4 2007.

i would like to know if i should get an
OBD II Professional Auto Scanner ex. U581 for 100$

or should i get a cheap 10$ usb cable, to use it with my laptop.

keeping in mind that both will have Live Data Update...

thanks guys in advace...


za3toor

 

u should get vag com

 

I have the same Question?? Kinda??? What is the best reader out there>?

 

For the newer models, 2005 and up you'll need CAN-BUS.

http://search.ebay.com/search/search...&category0=

 

thanks a lot for the reply... but would you say this U581 would work??
http://cgi.ebay.com/ebaymotors/U581-...spagenameZWDVW

and what about this cheap usb cable

http://cgi.ebay.com/ebaymotors/USB-K...em330176436415

and would i need this 2X2/ Way with the cheap usb cable too??

http://cgi.ebay.com/2x2-2-way-OBD2-A...QQcmdZViewItem

keeping in mind i have an audi A4 2007 (B7).
so i am sooooo confused.... sorry.. i am still a newbie

za3toor

 

Ok, I've been through several hours of figuring out why a newly purchased INNOVA 3100a OBDII CAN (from Checker Auto)reader couldn't read a code when the Check Engine Light is on. After several
calls to tech support with no help, I took the car into Audi. They were able to read the code without trouble.

This is what the Audidealer found:

1 Trouble Code detected?
18201 P1793 000
Output Speed Sensor 2 Cir.
no signal
sporadic

The dealer told me this is coming from the transmission and would take a valve body replacement
to fix it. The car runs perfectly and suspect the sensor itself is faulty or wire loose. I was told you couldn't
just fix the sensor, they had to replace the valve body which meant dropping the transmission. Don't want to be cynical here, but I'm wondering about the logic of this. Anyway, looks like easy money for the dealer.

So I go home and look at the TEKLINK software that came with the reader.Included isa code library and see that P1xxx codes are not listed. Goes from P0xxx and jumps to P2xxx. I call tech support again and ask why it doesn't read this code? They said, "Oh, that's a transmission code and the reader doesn't read those codes". Why they didn't they tell me this in the first place, I have no idea. They said you'll have to buy a mulitple $K reader to do that. This reader is nearly useless to me. I suspect if you pay anything less than $400, you won't get the full code set. Just guessing. Disappointing experience.

Everybody suggests the VAG COM, which are severalhundred dollars and not sure I'm willingto invest that much at this point. Makes me wonder what'sNOTcovered by them also.

Frustrated with '04 A4 1.8T with 32K

 

All of these readers, read all 4 computers;
ECU
SRS
ABS
Trans.
http://search.ebay.com/search/search...&category0=