Diesel vehicle electrical power devices VW Transporter T3

Electrical system of vehicles with a diesel engine
Bus DC Electrical System "Volkswagen" has a voltage of 12 V. The current source is a three-phase current generator with a device for regulating voltage and charging current. The...

Dismantling and installation of the battery
The battery is located in the back of the engine compartment. The second battery can be mounted under the driver's seat. It is only activated by means of an isolating relay when...

Checking the battery
Acid Level Check The liquid level should be 5 mm above the plates. If there is a label for the acid level, then you need to focus on it. Use only distilled water for topping up....

Charging the battery
Never short circuit a battery. In the event of a short circuit, the battery will heat up and may be discharged. Do not light it with open fire. The acid has a corrosive effect and...

The battery is self-discharging
If there is a suspicion that there is a leakage current, you need to check the on-board electrical network. Use a charged battery to test. Set the ammeter with measurement limits...

List of fuses
The fuses, covered with a plastic cover, are located under the instrument panel on the left or in special holders on the right. Number Consumer Current A 1 Left tail light, left...

Removal and installation of the relay
Above the fuse box are various relays. To remove any relay, you need to remove the fuse holder. Dismantling (97-656) unscrew the fixing bolts of the holder. In models from 9.85,...

Battery malfunction table
Battery fault table

Dismantling and installation of the generator
Dismantling Disconnect the battery from the ground, move the clamping bracket of the plug to the side, remove the plug, remove the cable mount. Unscrew the clamping plate bolt and...

Tensioning and changing the V-belt
Tension Check V-belt for wear, replace worn belt. Loosen the fixing bolt on the tie bar. With a mount, move the generator up so that the V-belt in its middle can be pushed through...

Checking the W terminal of the generator
Three-phase generators in diesel vehicles have an additional terminal W. A tachometer can be connected to this terminal. Examination Start the engine. (27-444) measure the voltage...

Replacing the voltage regulator
(27-356) when replacing the regulator, it is necessary to install an interference suppression capacitor 1 (if it's not worth it). (27-393) starting with 1981 models, a voltage...

Generator Fault Table
Generator Fault Table Malfunction: the control lamp of the generator does not light up when the ignition is on (engine not started yet). Fault: the generator control light does...

Dismantling and installation of the starter
Dismantling Disconnect the battery from the ground. Raise the rear of the car. Remove the lower engine cover. Open the cable clamp on the magnetic switch. Mark the electrical...

Starter malfunction table
Starter malfunction table If the starter does not crank, the first thing to check is that there is at least 8 volts at the magnetic switch terminal 50 to retract. If this voltage...

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Transporter T4 Transporter T3