12/30/2023 0 Comments Audi a6 power steering fluid leakHeck, they may even be rare and difficult to find, like the 16mm combination wrench: The measurements in parenthesis are the approximate conversions of the ones I've used - they may or may not work. Here are some of the tools you'll need, based on what I've used. I would strongly recommend having another person to assist, and at least one of you should have a long, skinny arm to sacrifice. Due to the difficult access to some of the bolts, it will take some elbow grease and patience. The procedure should take 4-8 hours, though I believe the recommended billing time was 8 hours. The following is the procedure for replacing the steering rack on a '99 Audi A8 4.2, though the rack is the same from model years '97-'99, and the procedure should be the similar, if not the same. They are relatively inexpensive and you'll already be paying for a steering alignment after this procedure, so might as well replace the tie rods, too. Some offer "long racks", however, that also include a steering damper and a Servotronic module already bolted on, which may benefit from replacement and would otherwise have to be transferred from the old rack.Īn additional thought is to replace the tie rod ends, if you've not already done so in the last 50-60k miles, since they wear out over time. The "short rack" for the A8 usually has only the steering rack itself with the boots covering the included inner tie rods. You may find that racks come in a "long rack" and "short rack" variety. A new rack from the Audi dealer costs over $1200, and a remanufactured one can be had for up to 1/4 of that price, not including core deposit. I'd recommend going for a remanufactured rack to save some money. They usually only fix the specific problem point and do not address the possible failure of other seals, gaskets, or worn parts in the assembly. Like any essential part in your car, be wary of racks for sale that have been simply repaired. If you are mistaken and the boots are dry, you can re-clamp the boots with plastic ties.Īlthough hard-core mechanics can take out the steering rack and repair the rack themselves, it is far more common to replace the steering rack unit with a new or remanufactured rack. The higher pressure of a running pump with the steering wheel at one extreme, as well as the resulting boot compression, should make the leak more apparent. Another, is to watch the boot while another person starts the car, and while in park, turns the steering wheel lock to lock. One, is to try loosening the boot clamps and push the boot inwards, towards the rack assembly to compress the volume of the boot and power steering fluid should gush out. Power steering fluid for the A8's are normally green, although if contaminated (major cause of leaks), they can take any color. Once the boot fills with fluid, it seeps past the boot ties near the tie rod ends or it gushes out as the boots compress when the car is turning. If you have any leak of power steering fluid from your steering rack boots (the rubber accordion cone sticking into the upper part of the front wheel wells on most A-series Audi's), chances are an internal seal in the steering rack assembly has gone bad and the fluid is collecting in the boot.
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