The alternator, which is known in technical jargon generator that produces the electrical power for the electrical system in a vehicle. A distinction is made between direct current and Alternators. In newer vehicles but alternators are only used. These have the advantage that it can already generate a high power at a low engine speed. It is driven by a V-belt. Since the engine speed varies during the journey, of course a different flow and voltage is also generated from the generator. For this reason, located on the alternator and a regulator. This is an electrical component that converts the current generated in a uniform stress. Produces the alternator more power is needed than just this flow into the vehicle’s battery and downloads them after. If too little current produced energy can then be used from the car battery, to supply the electrical system to a sufficient extent.
How do I recognize a fault in the alternator?
A problem that can occur sometimes is a worn drive belt. This can become evident that when the throttle is a squeaking noise from the engine compartment. This phenomenon suggests that the belt slips. Thus, the full force is not transmitted. The consequence is a diminished power of the generator. The belt can also be relatively easily re-tensioned. This purpose, only the two screws securing the alternator to be solved. Then it is rotated slightly away from the engine block and the bolts are fastened again. The alternator also serves for a V-belt tensioner. It makes more sense but to have a worn drive belt replace in a workshop. The work lasts about half an hour and material costs are 20 euros for the new belt. However, the costs also vary under different vehicle models. The reason is that the alternators are very difficult to access for some vehicle models.
What to do with a faulty alternator?
It can also occur a defect in the alternator. Due to wear on bearings, for example, the armature contacting the stator. In the case where no electric current is generated more. The driver recognizes this problem in mind that on the dashboard lights up, the charging lamp. This lights up whenever the generator does not generate sufficient energy. This is also the case if the controller is defective. In the event a workshop should be sought immediately. Once the alternator cannot produce more power, the entire on-board electronics of the vehicle is supplied with power from the car battery. The energy reserves, however, are quickly exhausted. In a workshop, is then determined using a diagnostic tool where the defect lies. Once the fault is localized, it can be fixed. The controller is faulty; it can be exchanged relatively quickly. The cost of a new controller averages around 50 euros. The exchange takes about half an hour. But if the alternator is broken, must be reckoned with higher costs. This can be at 300 to 500 euros. When replacing the alternator, the regulator and the belt should be replaced for safety reasons with also the same.