Audi air suspension consists of tough rubber bags inflated to a certain pressure to achieve a proper ride height, allowing more adjustability than a coil spring. These bags are matched with continuous damping control shock absorbers that adjust according to road conditions, the driver’s style and the mode specified in Audi drive select.
The ball joint in your vehicle’s suspension acts much like the shoulder joint in your body in that it swivels and rotates with the motion of a specific component. Tie-rods and control arms are a couple of parts that incorporate a ball joint into their design to help prevent binding.
You know that dusty buildup you see on your wheels? That’s brake dust, which is the result of friction created between your brake pads and brake rotors every time you press the brake pedal. It’s perfectly normal. It may be time to replace the pads if you feel grinding, hear squealing while stopping, or if you see a lit brake-related light on your dash.
These discs are what your brake pads grab onto as you press the brake pedal and bring your vehicle to a stop. A worn or damaged brake rotor can create pedal pulsing, steering wheel vibration and/or a squeal or grinding noise.
Another crucial component to the suspension of your vehicle: When the strut absorbs bumps, the control arm allows the wheel to move up and down while keeping the bottom of the tire in contact with the road. Ball joints connect these parts together, while rubber bushings help isolate road noise and small vibrations from the rest of the vehicle.
Your vehicle’s master brake cylinder converts the force applied to the brake pedal to hydraulic pressure by feeding brake fluid into the braking system. A faulty master cylinder can result in loss of brake pressure and, in turn, can potentially cause partial or complete failure.
Typically used on the rear suspension of most vehicles, shock absorbers help cushion road irregularities for a smooth ride. Struts perform the additional task of providing structural support to the suspension. The A6 utilizes a five-link front suspension with shocks, while the TT utilizes a strut-type front suspension.
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