Within the context of diagnostics and testing

With filtration, some filter replacement intervals are too long and so technicians may have to diagnose whether a filter can last until the next service.
Whenever a car is in the workshop for routine checks or scheduled inspection, the technician should take a look at the filters.
For any type of filter, UFI recommends to endeavour, wherever this is possible, to ensure that the assembled filter corresponds to the application suggested in the catalogue as the use of incorrect part numbers is a frequent cause of malfunction or even collapse of the filter.
In particular, UFI says for the oil filter it is recommendable to replace it even more often than what the car maker indicates, and what the filter manufacturer recommends.
If a vehicle is frequently driven short distances, an increased degradation of the oil will result. A good indication for this is the condition of the used oil from the engine (deep black colour in the engine oil, low viscosity of the engine oil like a thin liquid that almost resembles water).
UFI notes the service life of the air filter is indicated in the filter’s manual and should not be exceeded, warning that clogged air filters can compromise noticeable engine performance, reliability, increase fuel consumption and increase harmful emissions.
With the automatic diagnostics in modern cars, there is a symbol of a filter that, when lit up, indicates a clogged air filter.
When this happens, there is a problem with the intake air and in most cases the filter needs to be replaced.
In cars without a warning system, various alerts, such as generation of black smoke from the exhaust pipe, give a good indication that the combustion is not complete for an air filter due to be replaced.
If the fuel filter is clogged, not enough fuel can get into the car’s engine. In modern cars, the control unit detects the problem of fuel starvation and the engine warning light will turn on.
Usually, symptoms of a clogged fuel filter become apparent quickly, the most common of which are loss of power and jerking of the car.
Although the standard rule of thumb for a replacement of a cabin filter is once a year, it should be done at even shorter intervals in particularly dusty areas, since the rate of wear is quicker in such locations.
Allergy symptoms whilst driving, fatigue and poor concentration after prolonged driving can be a good hint to replace the filter.
Further indications may include a significant deterioration in the air quality, such as unpleasant odours or pollen particulates in the cabin as well as poor visibility due to condensation that builds up on the windscreen and side windows, or if unusual noises or leaks are being identified whilst operating the A/C system or the fan.
To conclude, UFI Filters recommends that, within the check routines, the technicians check the mileage of the vehicle; check the vehicle’s service check book about documented services including filter changes that were either part of the maintenance level or additional filter replacements that are documented separately; and service the vehicle in line with the due service level and follow the indications of the carmaker.

For more information, visit www.ufifilters.com