How often should I check windscreen washer fluid?

nidirect includes washers, wipers and visibility among important roadworthiness checks.

A full reservoir is particularly important in winter, on salted roads and during long motorway journeys when spray can quickly obscure the screen.

Use suitable screenwash rather than relying on plain water in freezing weather, and repair leaks or blocked jets instead of simply topping up.

For 'How often should I check windscreen washer fluid?', treat the issue as a current roadworthiness matter rather than something to leave until the next MOT. A valid MOT does not protect you if the vehicle develops a defect afterwards.

Check the current source for 'How often should I check windscreen washer fluid?' before acting if the relevant rule, policy, fee or eligibility has recently changed. Keep any official confirmation or reference number produced by the process because it can help resolve a later query. This note is specific to answer 473.