Vehicle power devices Audi A4 B6, gasoline
Battery — design description
Six cells connected in series are the "heart" of a 12-volt car battery. Each cell consists of a combination of a positive and negative plate, which, when...
Six cells connected in series are the "heart" of a 12-volt car battery. Each cell consists of a combination of a positive and negative plate, which, when...
Starter — design description
Audi A4 models are equipped with a so-called starter with forced engagement and self-disengagement of the gear. The starter is located in the front part of the...
Audi A4 models are equipped with a so-called starter with forced engagement and self-disengagement of the gear. The starter is located in the front part of the...
Generator and voltage regulator — design description
A powerful three-phase synchronous generator is like a power station for your car. Even when the engine is idling, it supplies current to all electrical units...
A powerful three-phase synchronous generator is like a power station for your car. Even when the engine is idling, it supplies current to all electrical units...
Organization of the electrical network
In the Audi A4, as already mentioned in connection with the description of the engine management system, a modern bus system Controller Area Network (CAN) is...
In the Audi A4, as already mentioned in connection with the description of the engine management system, a modern bus system Controller Area Network (CAN) is...
Checking the electrolyte level in the battery, caring for the contacts
The Audi A4 has a battery that does not require any special care under normal operating conditions. However, at high outside temperatures or long daily trips,...
The Audi A4 has a battery that does not require any special care under normal operating conditions. However, at high outside temperatures or long daily trips,...
Checking the density of the electrolyte
If, despite the appropriate electrolyte level, the battery does not deliver the required current, use a regular densimeter with a pipette to check the density...
If, despite the appropriate electrolyte level, the battery does not deliver the required current, use a regular densimeter with a pipette to check the density...
Measuring the battery's resting voltage
To check the battery status, you can use an accurate multimeter (reading accuracy ±0.02 V). Based on the value of the resting voltage, you can judge the...
To check the battery status, you can use an accurate multimeter (reading accuracy ±0.02 V). Based on the value of the resting voltage, you can judge the...
Battery load test
In combination with the electrolyte density test, the battery load test provides an indication of the battery condition. A battery tester is required for this....
In combination with the electrolyte density test, the battery load test provides an indication of the battery condition. A battery tester is required for this....
Charging the battery
The removed battery should be charged every month, as batteries that are not used for a long time are discharged. This, of course, also applies to the battery...
The removed battery should be charged every month, as batteries that are not used for a long time are discharged. This, of course, also applies to the battery...
Starting the engine from an external battery
To connect a charged and discharged battery together, use special wires for starting the engine from an external battery; this will protect electronic...
To connect a charged and discharged battery together, use special wires for starting the engine from an external battery; this will protect electronic...
Dismantling and installation of the generator
When working with the generator, you should follow the rules that are constantly found in different chapters of this book. After disconnecting the negative...
When working with the generator, you should follow the rules that are constantly found in different chapters of this book. After disconnecting the negative...
Checking the voltage regulator
1. Connect the multimeter between the positive terminal (red wire) generator and ground. 2. To warm up the generator to operating temperature (about 80°C), the...
1. Connect the multimeter between the positive terminal (red wire) generator and ground. 2. To warm up the generator to operating temperature (about 80°C), the...
Driving with a faulty alternator
Movement can be continued despite the failure of the generator or voltage regulator. In this case, power is supplied from the battery. Depending on the state...
Movement can be continued despite the failure of the generator or voltage regulator. In this case, power is supplied from the battery. Depending on the state...
Removal and installation the starter
The starter may fail due to malfunction of various parts. For example, it may be jamming or severe wear of the traction relay or contact carbons. The bearing...
The starter may fail due to malfunction of various parts. For example, it may be jamming or severe wear of the traction relay or contact carbons. The bearing...
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