I changed my steering rack a while back and everytime I buy a new pump it leaks after about 3-5 days I have been buying them from german & swedish, the first rack leaked from the top and the second leaked from the bottom could anyone help? Should I now go and get a genuine pump from audi ? £480 fitted?
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Check the power steering fluid level and add fluid if it is low. Check to see if the steering rack is leaking. You can check it by removing the tie rod boots to see if fluid comes out. Make sure the belt is tight. If the pump works and no leaks, you may need steering rack replacement. If you do need to replace your Steering Rack, this site looks like it has cheap prices, free shipping and great reviews http://www.buyautoparts.com/power-steering-rack.html
To look for a fluid leak, first you should have the car washed thoroughly all around the steering rack and the pump, then inspect it from the underside with a good light looking at the hoses coming from the pump to the rack, the couplings and the crimped unions of the rubber and metal tubes for leaks.
If the leak comes from a coupling, that may be a bad Oring.
For the defective hoses, you can choose from buying new ones or have them repaired in specialized shops that have the tools to make the crimped unions.
The fluid check valve built into the power steering pump may be bypassing your pressurized fluid back to the reservoir, and not assisting your steering input. You may need a new pump. The only way to know for sure is to have the power steering output checked with a guage set.
I have been an Audi tech for years. The recommendation is 75K however with that said at 65k it is cheap insurance to replace it at this time, Audi has always been expensive to repair, The issue with the rack and pinion if you have a history of complaints on the problems you can contact the district office for assistance, please be advised that they are more likely to assist you if you purchased the vehicle new and followed all of the maintenance required. As a sidenote if you decide not to replace the belt then I would sell the car as soon as possible, These are what's known as a close tolerance engine,Which means if the belt breaks major engine damage will occur, I know this is not a great way to start the new year but I hope this helps,
If it's coming from the rack, check the rubber boots from the rack to the inner tie rods, and if they are soaked with fluid, you will need a new rack, or keep adding fluid to the pump as needed.
Hope this helps!
Look at the steering rack on the side of the car that you think the leak is, look for the steering rack boot or gaiter, it looks like a black circular accordian type thing.
If this is bulging and leaking fluid the seal in the end of the rack is gone, this is one of the most common faults of leaking fluid and at the rate you are losing fluid, the leak is on the pressurised side of the system after the pump (the seal at the end of the rack)