How can I tell my alternator is at fault?
A simple test to check whether your alternator is working properly involves your car‘s interior lights. An alternator charges your battery when the car is running; so if the interior and dashboard lights come on brightly but slowly start to fade, then it indicates a problem with the alternator.
Another way to check if the alternator is at fault is the headlight test. To do this, start your car and turn on your headlights. With the vehicle out of gear, press on the accelerator while a second person observes the headlights. If the headlights flicker, dim or get brighter when the accelerator is pressed down, your alternator may need replacing. No change in headlight brightness indicates that your alternator is most likely to be functioning normally.
If you can hear a squealing noise when accelerating, this can be caused by a loose alternator belt. This problem needs fixing quickly as it can lead to flat battery.
Find a trusted, local garage to replace your alternator at Book My Garage or call one of our expert mechanics on 03304 004439 for help and advice.