When is it necessary to replace your Renault brake shoes?
In general for two reasons:
One of the two wheel brake cylinders is broken and moves, which leads to a fall of the brake fluid levels and to a higher braking force being necessary to slow down the vehicle. - The brake shoes are completely worn, which causes metal friction noises at the rear
Brake shoes for Renault are always sold in a batch of 2 so that you can replace the whole unit on the 2 rear wheels of your car. Most of the time, Renault brake shoes are already assembled to facilitate their fixing to the hub.