If the mileage of the Golf IV engine of the Golf IV engine is not known, it is possible to evaluate its condition visually. In order to gain access to the GRM-belt, the cover of the plastic jacket of the belt must be removed by unlatching the three latches. Initial assessment of the condition shall be made by the appearance of the belt (cracks, visual wear). After inspection, the width of the belt must be measured in several places. In the case of a large variation in width, the belt must be replaced.
