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Illustration #2213

Some filter housings have a movable air inlet nozzle on the end of the inlet trunk. In winter, this picks warm air up from just over the exhaust manifold. Loosen the nozzle and rotate it to the summer position. Some types have a movable flexible trunking instead.

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    Preparing for the summer

    One of the good things about a modern car is the way it adapts automatically to climate changes. Come rain, snow, ice, or a scorching day in summer, cars cope with changes in temperature and environment. But although much of the time seasonal changes bring no problems, some checks are advisable as winter ends and spring turns to summer. Read more