what does the BMW TIS CD do? what advantage do we get using this CD?

thanks guys... this TIS thing is new to me... so please don't flame me... thanks

 

Technical Information System

It's what the dealers use for fault finding and repair instructions. Also list symptons and possible causes together with solutions.

If you're one of the handyman brigade, worth having.

 

You can get one on eBay pretty cheap. Make sure you are getting hte latest available version ,since they update it quite often.