Repair of electric power devices of cars Volkswagen Passat B3 1988-1993

Electrical system
When checking an electrical system, a motorist in technical documents each time encounters such concepts as voltage, current and resistance. Voltage is measured in volts (IN),...

Measuring instruments
To measure the parameters of on-board electricians, so-called universal measuring instruments are sold in the distribution network. They combine in one device a voltmeter for...

Measurement technique
Voltage measurement You can verify the presence of voltage using a simple test lamp or voltage indicator. Thus, first of all, it is found out whether there is a voltage at all. In...

Installation of additional components of the electrical system
After drilling holes in the body, the edges of the holes should be deburred, primed and varnished. Chips that inevitably form during drilling must be removed from the body without...

Removing and installing the battery
The battery is located in the engine compartment on the left side. Attention: The battery must only be disconnected when the ignition is switched off, otherwise the injection...

Accumulator charging
The battery must never be short-circuited. If a short circuit occurs, the battery will heat up and may burst. Do not expose the battery to naked flames. Battery electrolyte is...

Spontaneous battery discharge
If a surface leakage current is suspected, the vehicle's on-board network should be checked, guided by the following instructions: Use a charged battery to test. Check with your...

Battery maintenance
Attention: Check the strength of the fastening of the battery, as the service life of the battery is reduced when it wobbles. Cleaning the battery poles During regular inspection...

Electronic anti-theft system
From 10/94, VW PASSAT vehicles are equipped as standard with an electronic anti-theft system. When activated, the system prevents the engine from starting if a different ignition...

Replacing fuses
In order to prevent damage to the wires and current consumers of the electrical system as a result of short circuits and overloads, individual electrical circuits are protected by...

Location of fuses / relays
Fuse location The location depends on the equipment and year of manufacture of the vehicle. If the consumer is made with several fuses, then, depending on the car model, it can be...

Car generator
The VW PASSAT is equipped with an alternator. Depending on the model and version, generators with a current strength of 65 A to 90 A can be installed. The generator is driven by a...

Removal and installation of the generator
Up to 9/93: engine carbureted or injection, 8-valve 1 - V-belt 2 - cylinder head bolt, 35 Nm With a turnkey internal hexagon, M8x90 mm. 3 - bushing 4 - bracket 5 - washer 6 — a...

Replacing / checking the brushes of the generator / relay-regulator
Depending on the version, alternators of various companies can be installed on the vehicle. In BOSCH and VALEO generators it is possible to remove the brushes without dismantling...

Diagnostics of malfunctions of the generator
Diagnostics of malfunctions of the generator.

Removal and installation of a starter
Some vehicles are equipped with starters of the following capacity: with an engine with a displacement of 1.6 liters - 0.9 kW: with engines with a displacement of 1.8 and 2.0...

Starter Troubleshooting
When the starter does not rotate, first of all it is necessary to check whether the voltage necessary for its operation is supplied to terminal 50 of the traction relay, the value...

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Power electrical devices of car Volkswagen Passat B3