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Avoiding
MOT Failure
Electrical Equipment
Switch
on the ignition and check the operation of the following electrical
equipment.
Horn. Horn should be audible and work every time
Windscreen Washers and Wipers. Examine the wiper blades
and make sure that they have a good edge with no splits, cracks,
nibbles or rips in the blades. They should clear the winscreen
leaving the windscreen clear and with good visibilty.
Side Lights & Headlights. Turn on and check operation
of side lights. All side lights should function front and back
and the registration plate must be illuminated. All lens must
be secure.
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Check
headlight alignment. This varies between vehicles but your beam must
not be too high as to blind oncoming traffic and must point slightly
towards the passengers side of the road, again to avoid blinding oncoming
traffic. Internal Headlight reflectors must be clear and not discoloured.
Hazard lights. Check that all indicators flash when the hazard
light button is depressed
Indicators. Ignition is usually needed. Check both sides, front
and back. Indicators must have an internal indiction of operation
ie on the dashboard.
Having a mirror or reflective surface behind the car can help in
these checks, alternatively have a friend help you.
Brake lights: Make sure ALL your brake lights work when pedal
is depressed and do not interfere with the working of indicators.
(A bad earth will cause unusual combinations of incorrect and dull
lighting)
Fog Lights. Check the operation and also the indicator on the
instrument panel.
Instrument Panel. When turning on the ignition check the following
on your instrument panel:
ABS
AIRBAG
These are specific to manufacturer but usually the light illuminate
for a period of time to show that the bulbs work and then extinguish
after a period of time. Once lights go out they should stay unlit.
Further Information
Headlights
Indicators
Brake Lights
Reflectors
Lamp Positions
ABS
Headlamp Aim
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