Salt air and short journeys change what wears out first, and it is not the engine.
The book that came with your car is not wrong. It is about a country with cold mornings, dry roads, salted winter tarmac and drivers doing two hundred kilometres at a stretch. Almost none of that describes this island, and following it to the letter is why people are surprised by their fifth and sixth year.
Here is what we actually see go early, in the order it costs people money.
Brake fluid. It pulls water out of the air through the reservoir and the flexible hoses, and the air here is wet all year. Wet brake fluid boils sooner, and the way you find out is a pedal that goes soft on the one afternoon you needed it. It is a cheap job on a major service and an expensive lesson otherwise, and it is why brake fluid is on our three year list regardless of distance.
Suspension bushes and ball joints. Salt gets into the rubber and the roads finish the job. A car here at fifty thousand kilometres often has the bushes of a car elsewhere at a hundred and fifty. You hear it as a knock over a speed bump long before you feel it.
Everything that is a bracket underneath. Exhaust hangers, heat shields, undertray clips, the little steel straps holding fuel and brake lines. None of them are expensive and all of them are a nuisance, and a car that has never been on a lift has a collection of them hanging loose.
The air conditioning condenser. It sits at the very front catching salt, dust and insects, and when it is blocked the air conditioning works harder, the fans run longer and the whole system ages faster. Cleaning it costs nothing on a service.
And the underside wherever a stone has taken the paint off. Two years of salt on bare steel and there is a hole. Finding those from a lift is half of what a service here is for.
Now the good news, which is the part nobody mentions. The engine itself tends to last longer than the book expects, because nobody does cold starts in a Maldivian morning and nobody does long high speed miles. We see engines at fifteen years that are honestly fine.
So the advice on every card we hand out is this: a minor service every six months, by the calendar and not by the odometer, because a car doing four thousand kilometres a year still ages in this air. A major service every three years whatever the distance. And get the car on a lift twice a year even if nothing is wrong, because everything on the list above is found by looking up at it.