I have a situation where the front O/S and rear N/S are brakes on my "65" plate 2.0 litre TDCI C-Max are not releasing. The diagonal pair (front N/S, rear O/S) are fine.
At first I thought it might be because the car has stood idle for long periods during the current pandemic causing these two brakes to seize up, but release the bleed nipple adjacent to each brake and the pads then clear the discs perfectly well.
Clearly the hydraulic pressure in the brake line is not clearing when you release the brake pedal, so does this suggest that the master cylinder is playing up (since I understand this comprises two hydraulic circuits, each operating diagonally opposite wheels), or is it a fault with the ABS module, or is it something else?
At first I thought it might be because the car has stood idle for long periods during the current pandemic causing these two brakes to seize up, but release the bleed nipple adjacent to each brake and the pads then clear the discs perfectly well.
Clearly the hydraulic pressure in the brake line is not clearing when you release the brake pedal, so does this suggest that the master cylinder is playing up (since I understand this comprises two hydraulic circuits, each operating diagonally opposite wheels), or is it a fault with the ABS module, or is it something else?