From Wikipedia, the free encyclopedia. Acute exacerbation of COPD also known as acute exacerbations of chronic bronchitis (AECB) is a sudden worsening of COPD symptoms (shortness of breath, quantity and color of phlegm) that typically lasts for several days.It may be triggered by an infection with bacteria or viruses or by environmental pollutants.hortness of breath and wheezing are present in many cases. Exacerbations may be accompanied by increased amount of cough and sputum productions, and a change in appearance of sputum. An abrupt worsening in COPD symptoms may cause rupture of the airways in the lungs, which in turn may cause a spontaneous pneumothorax.
Confidence votes 262K. To reset the fuel filter warning light off for the Toyota hilux one must replace the filter that switch the car on and off. They must also click the rest button.
Making the world better, one answer at a time. diesel 20 ltr, oil filter is situated at the front of the engine underneath the Black plastic engine cover. remove cover and look down the front of the engine were you will see the top of the oil filter housing, (you will need a 36mm socket to undo this cap).once removed lift out the oil filter and replace with new.genuine Vauxhall filter comes compleate with new o ring seals.emove cover and look down the front of the engine were you will see the top of the oil filter housing, (you will need a 36mm socket to undo this cap). once removed lift out the oil filter and replace with new.