Battery designation If the Audi-100 has a dust filter for the body ventilation system (since 8/92) or air conditioning, the battery is located in a waterproof housing (rear right...
How many reserves are enough? How long a power consumer can function on the current from the battery can be calculated using the following formula: Operating time = battery capacity...
Electrolyte level control The battery fluid consists of sulfuric acid diluted with distilled water. Some of this water may evaporate or disintegrate during the charging process into...
Checking the battery charge If the battery seems «powerless», despite the correct electrolyte level, the degree of discharge should be checked. To do this, you need to find out the...
Accumulator charging Connecting a battery charger On vehicles with a battery in the luggage compartment: connect the positive cable to the positive battery terminal, the negative...
Starting the engine with a dead battery Vehicles with a catalyst rarely need to be towed or pushed. If the engine does not start only because of a discharged battery, this is not dangerous. The...
Three-phase alternator Power Depending on the year of production, motorization and equipment, generators with a capacity of 70, 90, 100 and 120 A were installed in the Audi-100. To...
Battery charging indicator The indicator in the instrument cluster is equipped with two positive terminals, namely one on the side of the D + terminal of the generator (blue wire) and...
Voltage regulator An alternator in a car can be compared to a dynamo on a bicycle: the faster the rotation, the higher the voltage and thus the generated current. Automotive...
Independent repair of the generator and regulator Charging voltage test Usually the generator does not require repair, except for the really rare cases of replacing the generator brushes. More severe damage...
Driving with a faulty alternator If the alternator or voltage regulator is not working, then you can still continue the trip, since the battery can take over the role of the power source....
Checking the condition of the V- or V-ribbed belt MOT No. 12 To check the belt, rotate the engine fully several times. Only in this way can you really see all the surfaces of the belt. Often there is a single,...
V-belt and V-ribbed belt tension MOT No. 13 If the belt is too tight, it can stretch, breaking the rubberized fabric. With moderate thumb pressure on the V-belt, it can be forced between the...
V-belt or poly-V-belt tension Models with 4-cylinder engines Alternator V-belt up to August 91: Loosen the clamping bolt on the alternator adjusting bar. Turn the adjusting ring nut below...
Broken V-belt 4-cylinder engines While the V-ribbed belt, in fact, should serve the entire life of the vehicle, the V-belt may well break. If the belt is broken, one of...
Engine overheating due to damaged V-belt If the V-belt of the power steering pump breaks on models with a 4-cylinder engine, the drive to the water pump is interrupted at the same time and the engine...
Starter — general information When the ignition key is turned to position «Start» power is supplied to terminal 50 of the solenoid relay located on top of the starter. In this case, the...
List of starter faults Not always our list of faults will be able to help you so much that the starter will finally be able to start the engine. But if your Audi-100 is equipped with...