Yes. The process is called reapreciação. You must request it within 5 working days of results being published, it costs 25 euros which is not refunded whatever happens, and all components are re-marked by a different team rather than only the one you disagree with. Your score can move either way.
Do not assume so. Some centres have allowed candidates to resit only the failed components at the next session, but policies vary by centre and are not uniform. Confirm directly with the centre where you sat the exam, and plan financially on a full resit until they tell you otherwise.
Only up to a point. Components do compensate each other in the overall total, so strong reading lifts a weak component. But there is a hard floor of 25% in every component, and dropping below it fails the whole exam regardless of your total. Compensation stops exactly there.
On CAPLE's own results page, using your número de candidato, the candidate number issued when your registration was confirmed. It is an alphanumeric code, not your ID number and not your registration reference. Nobody emails or texts you when results appear, so checking the page is entirely on you.
Reading and writing are marked together as one component worth 45%. Listening is worth 30%. Speaking is worth 25%. Reading and writing are therefore almost half the grade, and they are also the most improvable, which is why preparation time is usually best spent there first.
Up to about six weeks, or 31 working days. The important detail is what starts the clock. It is not your exam day. It starts once papers from every centre, roughly 100 of them across 35 countries, have arrived at CAPLE in Lisbon. A delayed shipment from one centre pushes back everyone's results.
They are bands on your weighted total. Suficiente runs from 55% to 69%, Bom from 70% to 84%, and Muito Bom from 85% to 100%. Below 55% is Insuficiente, which is a fail. For a citizenship application all three passing bands are worth exactly the same thing.
You get a comunicação de resultados rather than a certificate. It records the result and proves you sat the exam, but it is not proof of A2, so it does nothing for a citizenship application. A resit means waiting for the next session your centre offers and paying the full fee again.
Two rules, and both apply at once. You need 55% overall, and you need at least 25% in every single component. The second rule is the one that catches people: a strong reading score cannot rescue a component you failed outright, so a comfortable overall average still fails if one part came in under 25%.