Should Brake Pads Be Replaced Front and Rear Together?

[AnthonyDella]

Brake pads are not replaced front and rear together, as their replacement cycles differ. Compared to front brake pads, rear brake pads have a longer service life. Under normal driving conditions, front brake pads typically need replacement every 30,000 to 50,000 kilometers, whereas rear brake pads can last 60,000 to 100,000 kilometers before requiring replacement. There is no fixed timeframe for brake pad replacement; the replacement interval depends not only on the lifespan of the brake pads but also on driving conditions and individual driving habits. New brake pads are approximately 1.5 cm thick and should be replaced when worn down to about 5 mm. When replacing brake pads, both pads on the same axle must be replaced simultaneously to ensure balanced braking performance on both sides.

[DiBriella]

As an experienced mechanic who frequently handles vehicle maintenance, I've observed that brake pad replacement doesn't necessarily require simultaneous front and rear changes. Through servicing thousands of vehicles in the workshop, I've noticed front brake pads typically wear faster than rear ones. This is because during braking, the vehicle's weight shifts forward, with the front wheels bearing over 70% of the braking force. Rear brake pads usually last 10,000-20,000 kilometers longer. As long as their thickness remains above the safety line, there's no urgent need for replacement. My standard advice to car owners is this economical approach: replace rear pads once for every two front pad replacements. However, special attention should be paid to rear systems with electronic parking brakes - their individual replacement requires significant labor time, making simultaneous replacement more practical. I recommend having technicians measure pad thickness with calipers during each maintenance service, allowing replacement strategies to be determined based on actual wear patterns for optimal safety.

[DePaul]

A veteran taxi driver with 15 years of experience tells you that brake pad replacement depends entirely on usage. I drive ten hours a day on the road, so I know best when it's time to change them: it mainly depends on how often and how hard you brake. If you frequently drive in stop-and-go city traffic, the front pads wear out much faster and may need replacement at around 20,000 kilometers, while the rear pads can last much longer. If you often drive on highways, the wear tends to be more even. From my personal experience, I proactively ask for all four wheels' brake pad thickness to be checked during every maintenance visit—repair shops have specialized tools for measurement. If the thickness is less than 3 millimeters, replacement is mandatory. If both front and rear pads are near the threshold, it's best to replace them together to avoid multiple trips to the repair shop. When replacing, make sure to choose the same brand and model to prevent brake noise caused by mismatched friction materials. Also, remind the mechanic to clean the caliper guide pins—many overlook this, leading to noise issues shortly after installing new pads.

[Holden]

Many car maintenance manuals now recommend replacing brake pads in batches based on mileage. Typically, the front pads need replacement every 30,000-50,000 kilometers, while the rear pads can last 60,000-80,000 kilometers. This design is quite reasonable, taking into account the load difference between the front and rear axles during braking. However, actual wear also depends on driving habits—frequent hard braking will accelerate wear. The detection method is to listen for sounds—if you hear metal scraping noises when turning, it means at least one side of the brake pads has worn down to the alarm shim. Once, my car had this issue, and the repair shop found that the left front pad was only 2 mm thick, the right front pad was 3.5 mm, and the rear pads were still at 5 mm. In the end, only the left front pad was replaced.