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As some of you may know, the parking brake on the Murano uses a "drum in disc" setup. This is the first vehicle I've owned with this setup, although apparently its not too uncommon. Wait a minute you say - its a four wheel disc brake right? Correct. So where does the drum come in?
Found this while browsing the web today.
Parking brake info.
The more relevant part of that link:
On four-wheel disc brake systems that have "mini-drums" inside the rear rotors, the parking brake works like a conventional drum brake. Pulling on the cable forces the shoes outward against the drum to lock the wheel. But unlike a full-sized drum brake, there's no self-adjuster mechanism for the star wheel to compensate for shoe wear because one isn't needed. The only time the parking brake is applied is when the vehicle is at rest so shoe wear is virtually nonexistent. The shoes should last the life of the vehicle -- unless the parking brake is binding and causing them to drag. The thickness of the shoe linings doesn't really matter as long as there is enough lining left to hold the car on an incline with normal cable travel.
Found this while browsing the web today.
Parking brake info.
The more relevant part of that link:
On four-wheel disc brake systems that have "mini-drums" inside the rear rotors, the parking brake works like a conventional drum brake. Pulling on the cable forces the shoes outward against the drum to lock the wheel. But unlike a full-sized drum brake, there's no self-adjuster mechanism for the star wheel to compensate for shoe wear because one isn't needed. The only time the parking brake is applied is when the vehicle is at rest so shoe wear is virtually nonexistent. The shoes should last the life of the vehicle -- unless the parking brake is binding and causing them to drag. The thickness of the shoe linings doesn't really matter as long as there is enough lining left to hold the car on an incline with normal cable travel.