Do brake pads with 4mm remaining need to be replaced?

[LaErin]

Brake pads with 4mm remaining do not need to be replaced. They can be used until worn down to only 0.3cm, at which point they should be replaced immediately. This is the minimum thickness limit for brake pad replacement. Composition of brake pads: Brake pads are generally composed of steel plates, bonded heat insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure the temperature distribution during coating meets quality standards. Definition of brake pads: Brake pads are also known as brake linings. In a car's braking system, brake pads are the most critical safety components. The effectiveness of all braking performance is decisively influenced by the brake pads. Therefore, high-quality brake pads act as protectors for both people and vehicles.

[SanJune]

Seeing the brake pads down to just 4mm, my decades-old driving buddies would tell you not to hesitate. New brake pads are typically 10-12mm thick—worn below 3mm is a definite replacement, and 4mm is already borderline; delaying further is risky. I recall stubbornly pushing limits in my youth, nearly crashing into a wall during heavy rain due to failing brakes. Safety first! Checking them yourself is easy: crouch down with calipers or peek through wheel gaps. If brakes feel spongy or squeal, head straight for repairs. Replacing pads costs just a few hundred bucks, but neglecting them grinds down rotors, leading to four-figure repair bills. Regular maintenance beats costly fixes—diligent car care brings peace of mind.

[VanHeidi]

OMG, only 4mm left on the brake pads? As a newbie who just bought the car a year ago, I totally get that panic. New pads are usually around 10mm thick, so 4mm is considered very thin – especially if you frequently drive on highways or get stuck in city traffic where wear accelerates. Don't gamble with your life; immediately visit a repair shop for inspection. The mechanic can use tools to determine if replacement is needed. It's an affordable fix, around 300-500 RMB, and one replacement ensures safe driving for a long time. Ignoring it may increase braking distance, and sudden stops could lead to costly accidents. Pay attention to braking feedback while driving – don’t wait until the car alarm beeps. Develop good habits to prevent major disasters.

[McEva]

A brake pad thickness of 4mm requires case-by-case evaluation for replacement. New pads typically measure 10-12mm, with standard replacement recommended below 3mm; 4mm falls within the "monitor closely but still usable" range. Aggressive driving habits like frequent hard braking or heavy-load operation accelerate wear and increase risks. We recommend regular professional inspections using a multimeter to check braking system performance. Neglect may cause rotor damage, significantly increasing overall repair costs while creating serious safety concerns. Early intervention saves both money and hassle.