The right battery The battery is the main link in the on-board electrics in the Audi A4. Various consumers receive power from it - it receives recharging from the generator. The...
How much battery backup is enough? How long a consumer of electricity can operate from a battery, we calculate by the formula: duration of operation = battery capacity x per voltage of the...
Checking the acid level in the battery The battery fluid consists of sulfuric acid diluted with distilled water. Some of this water may evaporate or break down into hydrogen and oxygen during...
Checking the battery charge If, despite the correct level of acid, the battery does not show signs of life, then you should check the state of its charge. This information can be obtained...
Accumulator charging Connecting a home charger 1. Connect the positive wire of the charger to the positive of the battery, the negative wire to the negative of the battery. 2. When...
Starting the engine with a dead battery If the engine does not start due to a dead battery, then this is not dangerous. The situation is different in the event of a malfunction in the ignition...
Alternator Since the Audi cannot pull the power supply cable with it, the power generation must take place directly in the vehicle. This task is performed by the...
Charging indicator light The control lamp in the combined instrument panel has two positive connections: firstly, on the alternator D+ terminal (blue wire) and secondly at terminal 15...
Self-help with generator and voltage regulator An alternator in a car can be compared to a bicycle alternator: the faster the alternator rotates, the higher the voltage rises and, consequently, the supplied...
Driving with a defective alternator If the generator or voltage regulator does not work, then you can continue the trip, because. the battery can help start the engine. During daylight hours, the...
V-belt and V-ribbed belt With a six-cylinder engine, all auxiliary units are powered by a wide drive belt - a V-ribbed belt. Thanks to the automatic tensioner, this belt should last...
Replacing the V-belt and V-ribbed belt Belt drive units with a four-cylinder engine with the front of the car removed 1 - air conditioner compressor; 2 - tension roller; 3 - belt pulley of the...
Broken V-belt 1 - the passage of the V-ribbed belt in a six-cylinder engine without air conditioning. 2 - so the V-ribbed belt in a six-cylinder engine with air conditioning...
Overview: V-belt and V-ribbed belt The table below shows the V-belt and V-ribbed belt dimensions for the various Audi A4 models: Model V-belt or V-ribbed belt (KRR) For Designation Four cylinder...
Help with battery and alternator malfunctions Malfunction Her reasons Your help A. The red charge indicator does not light when ignition on 1. The battery is dead 2. Broken battery wire, disconnected or...
Starter — location and operation The starter is on the right side of the engine (shown here in a four-cylinder engine) 1 - terminal 50 wire (from the ignition switch); 2 - terminal 30 wire...
Help with starter malfunctions Our assistance in case of malfunctions may not always be so effective that the starter will finally start the engine. But if the Audi has a manual...