Brake callipers play a big role in today's disc
braking systems. The brake pads and discs, along with the rest of the
hydraulic system, are used to slow and stop the vehicle. When the brake pedal
is pushed, brake fluid is supplied via the master cylinder to the calliper,
which expands the piston and presses the brake pads against the brake discs to
slow and stop the vehicle.
Brake callipers are subjected to the strong heat
released during braking over time and might eventually break, interfering with
braking and significantly impacting the vehicle's handling and safety features.
For this safety reason, a faulty brake calliper will
fail a MOT test, so it is recommended to have the brake calliper repaired or
replaced before booking your next MOT
testing service.
When a calliper fails, the vehicle will normally show
one or more of the following five warning signals to alert the driver to a
potential problem that requires attention:
1. Leaking Brake Fluid - Brake fluid
leaking is one of the most prevalent indicators of a damaged or failing calliper.
The callipers work by extending the piston and slowing the car using braking
fluid pressure from the master cylinder and pedal. The fluid is kept from
seeping out by a rubber seal and boot. These seals will wear out and leak over
time as a result of repeated exposure to the strong heat created by braking.
Any brake calliper leaks will weaken the braking system's pressure sealing
capability, causing not only a puddle of brake fluid but also a considerable
reduction in the vehicle's stopping capabilities. Your car's MOT history checker will clearly
mention that the failure was due to fluid leaks. You may witness a puddle under
your vehicle and a burned rubber smell as a result of the leaking fluid.
2. Decreased Braking Power - Though lower
braking power can also be an indication of leaking brake fluid, it can also be
a sign of a faulty brake calliper. It may appear like braking and coming to a
complete stop requires more effort. The calliper pistons themselves may have
been stuck due to dirt and grime accumulation in this situation. When the
brakes are applied, they will feel spongy, and the calliper will not be able to
fully clamp down. The inability to stop correctly might jeopardise the
vehicle's safety, thus the problem should be addressed as soon as feasible.
When you check MOT history of any vehicle, this
is one of the most common reasons for failure.
3. Unusual Sounds When Braking - Another
potential problem with the brake calliper is abnormal noises from the wheels
during braking. It might be a symptom of a loose, stuck, or binding calliper if
you hear high-pitched noises, abrupt thudding, or impact sounds when applying
the brakes. In this state, the brake calliper will not be able to stop the car
correctly, and it may even cause premature brake wear. When you look up 'check
my MOT history' online, you'll find this is another typical
reason for MOT failure.
4. Vehicle pulling - A vehicle
pulling to the left or right is another typical indicator of a calliper that
needs to be replaced. Callipers are subjected to tremendous heat while braking,
which can cause the calliper piston to seize. A seized calliper piston will be
unable to retract mechanically, causing a continual drag on the wheel. As a
result of the brake drag, the car will pull to the side with the afflicted calliper,
as the wheel on that side is driving slower than the wheel on the opposing
side.
5. Brakes
Stay Engaged While Driving - If your brakes
feel like they're on even when your foot is off the brake pedal, it might be an
indication of a jammed brake callipers. The old, filthy callipers might be
locked in a position that prevents the brake pads from properly releasing. It
may appear that the vehicle is working harder to accelerate, that it is
dragging at high speeds, or that the parking brake has been left on. If not
replaced, a jammed brake callipers will need to be repaired or replaced.
Brake
callipers are a vital mechanical device of the braking system, as well as a
significant factor in a vehicle's overall safety and control. As a result, if
you suspect a problem with one of your callipers, get your vehicle inspected by
a professional technician who will analyse your braking system and determine if
you need to repair or replace your brake callipers
Comments
Post a Comment