Steering And Suspension
It is not common knowledge that the power steering fluid should be changed with some regularity. Most cars never get the fluid changed, and those that live to high mileages tend to suffer leaky steering racks and pumps as a result. Modern mineral hydraulic fluid is synthetic, and is therefore longer lasting, but Karmakanix recommends long term fluid changes to save you from the long term expensive repairs. There is no set interval, since every driver and every car goes through a vastly different life. Lots of city driving involves lots of steering. Dusty roads get dirt in every fluid. Our technicians monitor your fluid level and quality, by looking at the fluid and smelling it. Old, nasty power steering fluid should be flushed completely. Expect power steering fluid changes every 60K in the worst cases, every 80K to 100K for most customers.
You should not just go to a parts store to buy power steering fluid unless you are positive it is correct. If you pour in the incorrect fluid, the odds are good that you will cause rack and/or pump leakage. At Karmakanix, we use Pentosin synthetic hydraulic fluid. Early Audi models except the Fox and 4000 also use the power steering fluid for hydraulic assist brakes. Here is a short list of the different models and the proper fluid for each.