When i turn left or right sharp theirs a click sound someone told me to get tie racks audi 2002 a4

Do you mean hard to steer your steering wheel?
If you have a noise when you are turning your steering wheel, you may have low power steering fluid. Add power steering fluid into your power steering fluid reservoir to the level required (check with your manual book). Make sure you get the right power steering fluid for Audi A4. Hope it will help

Steering rack removal is a pretty serious job, Simple to explain. It has 2 tie rods to disconnect, usaly 2 big bolts or nuts, The steering shaft bolt. And the lines to disconnect, The hard part will be getting it out. Most can be manouvered out either side, But theres a chance you may have to drop the subframe.

On my '03 A4 it is in the trunk, on the pass. side. You have to remove the trunk floor and carpet on the right side of the trunk and it is bolted to a bracket. I removed the whole bracket. Dealer wanted $800 US. Found one on eBay for $65.

For Audi A4 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
First fuse on first row from left upper corner is Fuse Nr.20 = F20 (15A) - RH headlamp low beam, headlamp adjustment.
First fuse on second row from left upper corner is Fuse Nr.21 = F21 (15A) - LH headlamp low beam, headlamp adjustment.

that person is correct. remove the wheel and look at the tie rods. this vehicle uses a rack and pinion system so look at the rod connecting the rack to the outer tie rod. you will more than likely endup replacing the inner tie rod. then take it to an alignment shop and get it aligned.

Sounds like a RACK and PINION STEERING GEAR problem. Hope this helps.

the clicking and vibration in the front end sounds like a tie rod in need of replacement possibly due to potholes. Could be a bent alloy wheel from the same as well which could be causing all of the above problems

lower track control arm bushes

The old saying, " If it ain't broke don't try to fix it!" Just keep an eye on tire wear and strange noises.It should never leave you broke down. Frankster016

i would narrow it down to the steering rack or a CV joint
any noise comming from the front end like a clicking sound?