Your Audi A8 is car with maximum number of electric gadgetry apart from the AC, Lightning system, Power doors and windows an Audi A8 may also feature heated steering wheels and heated seats for extreme cold weather. Features like the Audi lane assist, Audi cruise control, Audi side assist, are all driven by electricity, what more the A8 also includes front seat ventilation and massage, wow that's some real luxury but wonder how crucial the electric supply to drive all this gadgetry is. This was just about the A8 every Audi model like the Audi A6, Audi Q5, Audi Q7, Audi R8 feature more or less similar feature which are electricity intensive.
There is more than the battery to power the electric system of a car, it's the Alternator. The Audi Alternator is the actual electrical power house of your Audi; it's an electromechanical device which generates alternating electric current from mechanical force. Your Audi Alternator works to charge the battery and to power the car's electric system when the engine is running. Audi Alternator also features a built-in voltage regulator linked to the on-board computer which works to supply the exact voltage for charging the battery and simultaneously supplies powers every electrical system of your Audi.
The electromechanical working of your Audi Alternator is not full-proof. The Audi alternator may develop snags and not performs to its best due one or the other of several reasons. The foremost sign of a dead or non-functioning alternator is "alternator indication bulb" on the console panel. The bulb should light up each time the engine starts, if it does not it probably indicates an alternator problem. Here are a few problems and diagnostic tests to further identify the alternator problems.
Look for worn out belts they important to functioning of alternator and may cause it to deliver low output. Check the alternator belt for cracks or glazing only when the engine is cold. Fasten any loosening belt as per the service manual's instructions.
Inspect the battery voltage and also the terminal connections while the engine is not running. With a voltmeter, check if the reading is between 13.8 and 15 volts, in case the reading dips low to 12.8 to 13 volts, your alternator is out of order.
Examine the circuit from power to ground or the other way, simply by connecting a light bulb inside the loop of the circuit to check whether it lights up or not. If a bulb is lightened it signifies that the circuit connection including battery and other components too is functioning accurately. Now if you test out the wiring from the battery through your alternator and the bulb is still glowing then it is the alternator which needs to be inspected not the battery.
Snoop in for a loud, grinding noise which is caused due to the rotor failing within the alternator. Hold one cusp of the heater hosepipe or tubing subsequent to your ear while posing the supplementary end adjacent to the alternator. The intensity of the noise should increase if you are dealing with a faulty alternator.
A faulty Audi alternator when beyond repair should be replaced immediately, you can source the replacement Audi alternator through any of the trustworthy sites on the internet, make sure you only opt for a trusted brand.