At this point, it is clear that a car that has all its maintenance in order will end up giving us fewer unpleasant surprises during its useful life. That does not mean that it is not susceptible to failures, but if it is in our power to anticipate its maintenance, the better. And in this aspect there are certain critical elements of our vehicle in which it is preferable not to take risks.
One of them is the timing belt, which is perhaps one of the most ignored or postponed parts in car maintenance, and which It can ruin your engine from one day to the next. if not changed to the proper frequency.
What exactly does it do? The timing belt is a toothed rubber band that synchronizes the movement of the crankshaft and camshaft, the two main shafts of the engine. Thanks to it, the pistons and valves move in coordination, since the valves open and close at the exact moment when the pistons rise and fall. If that timing fails even slightly, the engine loses efficiency. If it breaks completely, the disaster can be total.
Why is its breakage so dangerous? When the belt fails in motion, the motor stops dead without warning. In most modern vehicles, what happens next is that the pistons, which continue to move by inertia, violently collide against the valves. “It is a catastrophic event that can spell the death knell for the engine. The dull sound, followed by the absolute silence of the engine, is the beginning of a mechanical and financial nightmare,” they count from the specialized workshop C3 Care Car Center.
When the tragedy ends, we can find bent valves, damaged pistons and, in more serious cases, a cracked cylinder head or a fractured camshaft. And of course, the price multiplies many times when it comes to repairing all that piphostio.
Mileage. Most manufacturers set a change interval in kilometers, which depending on the model ranges between 60,000 and 240,000 km. But it is not the only number we should pay attention to, since the time of use also counts. From Rodi Motor they claim If there is no maximum date set in the owner’s manual, the usual recommendation is to check the belt every five years even if the kilometer limit has not been reached. The reason is that the rubber on the belt ages even if the car is stopped, and a dry or cracked belt can end up becoming a time bomb for our car.
It will depend on the type of vehicle and car distribution system, but to have a universal reference, Juan José Ebenezer, mechanical expert and content creator, advises change it every 100,000 kilometers or every five years, whichever comes first. If we are already talking about oil-soaked belts from the Stellantis group, Ebenezer points out that “with 60,000 km you are already late”, and that it is normal to change them after 50,000 km.
Normally, the workshops will change the complete kit, which includes the belt, pulleys, tension rollers, the water pump and all the hardware for installation. But if you prefer to make sure, it is best to tell them to change the complete kit.
When to get ahead. There are specific situations in which experts recommend reducing the change interval between 15 and 25% compared to what is indicated by the manufacturer. Alejandro Pais, managing partner of Pais Automoción and Spanish champion of Group N in 2013 explains that “driving in an urban environment usually accelerates the deterioration of the timing belt. If this is your case, calculate between 20% and 25% earlier than recommended by the manufacturer.”
In the end, it is not the same for a vehicle to be constantly exposed to cold starts, slowdowns and constant gear changes from exclusive use in the city, to taking it out more or less frequently on the highway. So if you can afford to change the timing belt in advance, the better.
The climate also wears it out. High temperatures are another enemy for the belt. Precisely from Volkswagen Canarias, the brand’s official network on the islands, warn In areas with intense heat and suspended dust such as haze, they recommend advancing the visual inspection, even for engines whose official interval reaches 210,000 km.
The same logic applies in areas of extreme cold or high humidity. The Midas chain of workshops also recommends advance the maintenance of this component in vehicles that regularly circulate in extreme climates.
Better not to risk it. A preventive change of the distribution kit in Spain ranges between 300 and 1,000 euros depending on the vehicle and the workshop. The repair of an engine damaged by a broken belt can start at 1,000 euros and easily reach 6,000, according to they count from Rodi Motor. In more serious cases, when the damage affects the pistons, cylinder head or camshaft, it is possible that the failure is so serious that the entire engine has to be replaced, and then the cost ends up being exorbitant. So do your car a favor and take care of it.
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