Diagnosis: Acquisition

Hi,
I would like to purchase a laptop or diagnostic device that allows me to read all error codes.
It's enough if it works with Golf 3 models or later.

Okay, I need some tips and suggestions from you about what I'll need for this.
Sure, here's the translation:

"Thank you in advance."

Hi,

If you want to get everything with just one purchase:
http://shop.dieselschrauber.de/product_info.php/products_id/32

Oops.

I didn't want to spend that much!

Then buy a laptop (e.g., on eBay) and, in the shop shown above, purchase an interface and the corresponding software. That will also .

Okay... I'd rather do that with a laptop!
What requirements should a notebook meet in order to be suitable for that purpose?

A Pentium II should be sufficient. You should pay attention to a good battery.

You can find the hardware requirements here (section 1.4 for serial adapters, 1.5 for USB).
http://www.ross-tech.com/vag-com/faq_1.html#1.4

Okay.
Okay, now I know what kind of laptop I need!

What cables or adapters do I need to be able to use the 2x2 connection in my Golf 3?
and which cables are needed to connect to newer cars?

"This isn't a simple question to answer. "Newer cars" often have CAN bus diagnostics and require a CAN-compatible interface, such as the Golf 5, new A3 models, Touran, etc."

All interfaces come with the 16-pin OBD2 connector. For 2x2 sockets, corresponding adapters are available here in the shop http://shop.dieselschrauber.de/product_info.php/products_id/34.

Please note that newer versions of VAG-Com, specifically those above version 3.11, can only be used or unlocked in conjunction with intelligent interfaces that have a built-in dongle.

Okay, then I'll focus on the models up to the year 2000, was probably the limit, right? If so, what do I need?

The border is more likely to be from 2003.

You need this (serially).

or this one (USB).
http://shop.dieselschrauber.de/product_info.php/cPath/21/products_id/41{MARKER}
plus this one for your G3.
http://shop.dieselschrauber.de/product_info.php/products_id/45http://shop.dieselschrauber.de/product_info.php/products_id/34

Okay, then I know the basics.
THANK YOU VERY MUCH!