When replacing the rear brake pads of the Audi A4, first loosen the tire bolts, raise the chassis, and remove the tire.
Next, use an appropriate star wrench to remove the fastening bolts, open the cover of the brake master cylinder, and use a plastic hose to draw out the brake fluid.
Then, remove the old brake pads and apply anti-seize lubricant to the back of the new brake pads before installing them and tightening the screws, followed by putting the tire back on.
There is no fixed standard for the replacement cycle of brake pads; it depends on the driver's driving habits and the road conditions they frequently travel on.
If driving on good roads frequently and possessing good driving habits, the brake pads can last up to 100,000 kilometers.
If replacement is needed, first check the thickness of the brake pads. If the thickness of the black friction material is less than 5 millimeters, it indicates that replacement is necessary.
Additionally, pay attention to any sharp metal sounds when braking; if present, replacement is also required.
Lastly, whether the braking effect is immediate is another criterion; if force is needed to achieve braking, it indicates that the brake pads need to be replaced as well.
Timely replacement of brake pads is essential for ensuring driving safety and reducing fuel consumption.
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