HI everyone I recently bought a late 2002 C5 (Mk1) 2.2 Diesel Exclusive Auto. I love the car and it was a bargain on eBay. Since it was cheap i did expect a few problems on the way. So here are the questions i need to ask so that i can make sure she keeps running good. 1. When driving the car sometimes the rear end becomes very bumpy. I haven't noticed the car dropping over night and it always stays the same height in the morning or if left parked for a day or so. The front looks higher then the back and i am going to try and reset the height sensors on that ( if someone has the method how to do it i would appreciated, seen the topic but don't know if the person that was offering the file with the info so was still on here). 2. I am looking into getting the Lexia Software and cables to be able to diagnose the car myself. I had a look on eBay and there are alot of different ones. can you guys please direct me to the right ones. I seen posts saying the the china ones will do damage. 3. On the 2.2 Diesel what stage do you have to replace the timing belt? Mine just done 98k. I tried to contact the garage that did previous servicing on the car but with no luck. I am planning to have it replaced if it needs to be done soon. i presume like any other car its safe to replace timing belt kit and water pump and a fresh dose of coolant? Thanks for all the help in advance. Franco