This tool is only useful for reading faut codes, the rest you can do without it IMHO. You don't need to buy it for reseting ABS or Motronic. For R1100GS ABS reset, I've used the following and it works:
- Turn off the ignition and remove the seats from the bike.
- Look under the rider seat for a set of three wires that go into a plug (usually blue plug).
- Remove the plug (you will see that it's nothing but an empty piece of plastic!).
- Insert one end of your 30cm strip of wire into the cable plug so it makes
contact with the CENTER wire
- Ground the other end of your wire
- Turn on the ignition and hold down the ABS button for 10 seconds.
- Turn off the ignition, remove your 30cm wire and put the bike back together again.
- Turn the ignition back on and the ABS is reset!