Vehicle electrical system Audi 80 B4
General description
When checking electrical equipment, a motorist, referring to technical documentation, constantly encounters such concepts as voltage, current, resistance....
When checking electrical equipment, a motorist, referring to technical documentation, constantly encounters such concepts as voltage, current, resistance....
Central distribution panel
All the wires in AUDI 80 cars are combined into bundles that are connected to the central distribution panel - a waterproof black box in the rear left part of...
All the wires in AUDI 80 cars are combined into bundles that are connected to the central distribution panel - a waterproof black box in the rear left part of...
Fuses — replacement and purpose
Each electrical device in a car is designed for a certain voltage. The diameter of the supply cable is calculated taking this voltage into account. If the...
Each electrical device in a car is designed for a certain voltage. The diameter of the supply cable is calculated taking this voltage into account. If the...
Alternator
General Provisions and Precautions Until about the end of 1991, some AUDI 80 models were equipped with a 65-A alternator. They were replaced by 90-A...
General Provisions and Precautions Until about the end of 1991, some AUDI 80 models were equipped with a 65-A alternator. They were replaced by 90-A...
Generator — Checking, Removing and Installing
Checking voltage 1. Connect the voltmeter to the place where the thick wire with red insulation is attached to the generator and to the "ground" (-). 2. Start...
Checking voltage 1. Connect the voltmeter to the place where the thick wire with red insulation is attached to the generator and to the "ground" (-). 2. Start...
Alternator Belt — Tension
The generator is driven by a V-belt or V-ribbed belt. V-belts are used in cars produced before 9/91. Starting from 10/91, AUDI 80s are equipped with V-ribbed...
The generator is driven by a V-belt or V-ribbed belt. V-belts are used in cars produced before 9/91. Starting from 10/91, AUDI 80s are equipped with V-ribbed...
Rechargeable battery
The battery of AUDI 80 cars with four- and five-cylinder engines is in the rear part of the engine compartment on the right side. In cars with six-cylinder...
The battery of AUDI 80 cars with four- and five-cylinder engines is in the rear part of the engine compartment on the right side. In cars with six-cylinder...
Starter — Removing and Replacing Brushes
When the ignition key is turned to the "Starter" position, voltage is supplied to terminal 50 of the traction relay located on top of the starter. This pushes...
When the ignition key is turned to the "Starter" position, voltage is supplied to terminal 50 of the traction relay located on top of the starter. This pushes...
Lighting fixtures
Lighting devices include: headlights, taillights, brake lights, turn signals, reversing lights, fog lights, license plate lights, underhood light, trunk light,...
Lighting devices include: headlights, taillights, brake lights, turn signals, reversing lights, fog lights, license plate lights, underhood light, trunk light,...
External Light Bulbs — Replacement
High and low beam headlights All headlight bulbs are removed from the engine compartment. In order to remove the corresponding bulb, it is necessary to perform...
High and low beam headlights All headlight bulbs are removed from the engine compartment. In order to remove the corresponding bulb, it is necessary to perform...
Headlights — removal and installation
Depending on the engine type, to access the bulbs in the right headlight, you need to remove the rubber cuff from the headlight cover, press the retaining...
Depending on the engine type, to access the bulbs in the right headlight, you need to remove the rubber cuff from the headlight cover, press the retaining...
Lighting and backlighting lanterns
Interior light When the door is opened or the switch is turned on, the 10 W interior light bulb should light up. When removing this light, it is recommended to...
Interior light When the door is opened or the switch is turned on, the 10 W interior light bulb should light up. When removing this light, it is recommended to...
Control devices and control lamps
Instrument panel 1. Remove the steering wheel 2. Remove the steering column trim. 3. Unscrew the two screws that become accessible after removing the steering...
Instrument panel 1. Remove the steering wheel 2. Remove the steering column trim. 3. Unscrew the two screws that become accessible after removing the steering...
Diagnostic unit for the functioning of the main vehicle systems (Auto-Check-System)
AUDI 80 cars can be equipped with a so-called diagnostic unit for the operation of the main systems upon request (Auto-Check-System). This unit checks the...
AUDI 80 cars can be equipped with a so-called diagnostic unit for the operation of the main systems upon request (Auto-Check-System). This unit checks the...
Switches
Steering column switches The steering column switches are a single unit and therefore cannot be replaced individually. 1. Remove the steering wheel. If the...
Steering column switches The steering column switches are a single unit and therefore cannot be replaced individually. 1. Remove the steering wheel. If the...
Ignition and steering lock switch — removal
All work related to the removal, repair or replacement of the ignition switch must be performed in a workshop, because to remove the switch it is necessary to...
All work related to the removal, repair or replacement of the ignition switch must be performed in a workshop, because to remove the switch it is necessary to...
Glass cleaners and washers
Windscreen wiper - removal and installation The service life of the rubber band of the windshield wiper blade is approximately six months. The car owner can...
Windscreen wiper - removal and installation The service life of the rubber band of the windshield wiper blade is approximately six months. The car owner can...
Radio receiver — removal and installation
The following procedure applies to serially installed radio receivers. 1. Make sure that you know and write down the security code that your radio has. 2....
The following procedure applies to serially installed radio receivers. 1. Make sure that you know and write down the security code that your radio has. 2....
Adjustable mirrors and electric windows
Adjustable outside rear view mirrors The adjustment of the outside rear-view mirrors is performed using the switches on the armrest of the driver's side door....
Adjustable outside rear view mirrors The adjustment of the outside rear-view mirrors is performed using the switches on the armrest of the driver's side door....
Central lock
All doors, as well as the boot lid and fuel filler flap, can be closed by turning the driver's door, passenger door or boot lock switch. The central locking...
All doors, as well as the boot lid and fuel filler flap, can be closed by turning the driver's door, passenger door or boot lock switch. The central locking...
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