Brakes (A5)Question 57 of 120
A rear disc parking brake that will not hold is often caused by:
a.A misadjusted or seized parking brake mechanism/cable
b.Air in the front lines
c.A failed wheel-speed sensor
d.Low battery voltage
Explanation
Parking brake holding faults usually trace to cable stretch, misadjustment, or a seized caliper parking mechanism. Proper adjustment and lubrication restore holding force. On integral rear calipers, the internal actuator must function for both service and parking braking.
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