To maintain vehicle performance and safety requirements, it is important:, The vehicle is thoroughly cleaned before any maintenance is carried out, That all light vehicles below 3500kg must have an annual MOT inspection, All vehicles are road tested by a qualified technician to guarantee standards, To fit replacement parts that meet the original manufacturer's specification, Which is the correct procedure for checking the operation of a hydraulic brake vacuum servo unit?, Carry out a vehicle roller brake test, check that the minimum brake efficiencies are being achieved by all braked wheels, With engine running, fully depress the brake pedal under steady pressure, check sponginess and if the pedal creeps down, Fully deplete the vacuum, partly depress the brake pedal, start the engine, check if the pedal dips when started, Run the engine at 1800rpm whilst pumping on/' off of the brake pedal, listen for variations in engine tone/ speed, During routine maintenance, a small split is found in a Constant Velocity (CV) joint gaiter (no noise from the shaft has been reported) Which is the most suitable recommendation/ action?, Clean, repack the joint with grease and replace the CV boot, Advise customer the CV boot needs checking at next service, Just replace the CV boot if the joint is still full of grease, Do not report the CV boot fault as it is only a small hole, When checking seat belt webbing as part of an inspection, it is important to:, Refer all seat belt inspections to a senior technician, Extend it to its full length to check the whole belt, Only check belts for the front seats of the vehicle, Check only the portion of the belt visible when retracted, Connecting a voltmeter across the battery terminals whilst cranking the engine with the starter motor, a service technician can:, Assess starter motor power, Observe the voltage drop, Test the alternator output, Calculate the current used, A vehicle should fail an annual MOT inspection if the brake imbalance across an axle is more than:, 10%, 20%, 30%, 40%, During an inspection, a technician observes a tyre is heavily oxidised with severe cracking on the sidewalls, however, the cords are not exposed. An appropriate recommendation to the customer would be:, To rotate the tyre onto the drive wheels to wear quicker, That the tyre should be rechecked at the next annual service, To advise the tyre is replaced before it becomes too dangerous, That a suitable restoration treatment be applied to the tyre, Annual maintenance does not typically contain checks to:, Vehicle interior appearance, Chassis components, Driveline components, Engine operation, When checking the wiper blades during a vehicle inspection, a technician should ensure they are:, Checked for both operation and condition, Only visually checked from outside, Checked for operation from inside the vehicle, Only checked for security, A blocked Spark Ignition (SI) engine air filter will commonly cause a high level of:, Nitrogen in the exhaust gas, Oxygen in the exhaust gas, Water in the exhaust gas, Carbon Monoxide in the exhaust gas.

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